USB Bus resets upon device removal?

Hi everyone,
I recently encountered an issue where if I was using VMWare Fusion to burn a disc in Windows on my external USB writer, the USB Bus would reset and the burn would fail. I later found out that this was not just in VMWare, but it was happening in Toast as well. I was burning a disc in Toast, I plugged in my iPod, added some songs, and removed it. Right away the burn failed, it looks like the bus reset again. This happens every time and I can't use ANY USB devices while burning a disc to the external burner... it's quite frustrating. Anyone else encounter the same issue, and can vouch that it is a Leopard issue?
Thanks,
--Henry

I used to have this burner hooked up to a G5 and never had the issue before Leopard, so I believe Leopard's driver is improperly handling it.
It's a Samsung Super Writemaster S128M.

Similar Messages

  • Continuous USB Device Removal Messages on certain Flash Sticks since 10.5.2

    I have run into a problem with both my MacBook Air and Mac Pro since running 10.5.2, and this was not fixed in 10.5.3:
    Most Flashsticks appear to be continuously removed and replugged over 5 sec intervals. I continuously get the "Device Removal Warning." These worked before, and do not have the problem running under BootCamp on the same machine, or being assigned to VMWare. An example is an Emprex 4GB stick, which was not cheap, when bought. They also do not have issues on Dells, or Macs running tiger!
    These are plugged directly into the system, no hubs or cables in between.
    There are other brands that do not have the issue.
    Has anybody run into this? This is very annoying.
    -- Harald
    Message was edited by: HaraldS

    I'm seeing that issue with an Adata 8GB stick (www.adata.com.tw).
    That same stick works fine on my MacMini (ppc), Dell 700m, and Lenovo T60p.
    In all cases, I'm always connecting the stick directly to the systems.
    The failure happens at various times after insertion. Sometimes Finder doesn't event display the contents, sometimes I'm able to copy 20MB before the copy hangs. In all cases (dozen times) on the MacBook Air, it never worked reliably.
    The MacBook Air USB port is not (completely?) busted, as it works fine with my Maxtor OneTouch USB2.0 external disk.
    Applications -> Console shows the following messages, starting from device insertion to "Device removal" error message:
    (the rest of this post is only the console log)
    +2008-08-17 4:54:09 PM fseventsd\[26] log dir: /Volumes/JPAUSB8GB/.fseventsd getting new uuid: 5FA60CFC-8EA9-46D5-A0D5-7D20C36C64A0+
    +2008-08-17 4:54:57 PM kernel USBF: 6841.387 AppleUSBEHCI\[0x3c4e000]::Found a transaction past the completion deadline on bus 0xfd, timing out! (Addr: 3, EP: 1)+
    +2008-08-17 4:55:28 PM kernel USBF: 6872.390 AppleUSBEHCI\[0x3c4e000]::Found a transaction past the completion deadline on bus 0xfd, timing out! (Addr: 3, EP: 1)+
    +2008-08-17 4:55:34 PM kernel USBF: 6878.390 AppleUSBEHCI\[0x3c4e000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:37 PM kernel 1-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.cmpt.indexDirectory] \[FSLogMsgID 1230162260] \[FSLogMsgOrder Last]+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    \[repeated 9 times]
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(47 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexPostings, 1531) error:13+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(55 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexPositions, 4) error:13+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(59 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexArrays, 70640) error:13+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in storageTruncate:ftruncate error 13+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(60 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexCompactDirectory, 8) error:13+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(57 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexDirectory, 2056) error:13+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    \[repated 6 times]
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in indexShadowFiles:open err: 13, 0.shadowIndexHead+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexGeneral in notify_lowspace:low space for device 234881028 (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:37 PM mds\[20] (Error) Volume: LOW DISK SPACE device:234881028+
    +2008-08-17 4:55:37 PM kernel ] \[ErrType IO] \[ErrNo 13] \[IOType Read] \[PBlkNum 31824] \[LBlkNum 31824] \[FSLogMsgID 368749274] \[FSLogMsgOrder First]+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in index_compact:open err: 13, tmp.0.cmpt.indexHead+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(57 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexDirectory, 0) error:13+
    +2008-08-17 4:55:37 PM kernel kNum 31040] \[FSLogMsgID 454989150] \[FSLogMsgOrder First]+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(60 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexCompactDirectory, 0) error:13+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(59 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexArrays, 0) error:13+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(47 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexPostings, 0) error:13+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(55 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.indexPositions, 0) error:13+
    +2008-08-17 4:55:37 PM mds\[20] (/Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F)(Error) IndexCI in ci_ftruncate:ftruncate(64 /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F/tmp.0.c mpt.newTermIDMap, 0) error:13+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:37 PM mds\[20] (/)(Error) IndexGeneral in SIPersistentIDStoreCreate:Couldn't make psid store at /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:37 PM mds\[20] (/)(Error) IndexGeneral in SIPersistentIDStoreCreate:Couldn't make psid store at /Volumes/JPAUSB8GB/.Spotlight-V100/Store-V1/Stores/BAA51F71-1D1A-4E07-90A9-34CCE9A7FD8F+
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    \[repeated 6 times]
    +2008-08-17 4:55:37 PM kernel disk1s1: device/channel is not attached.+
    +2008-08-17 4:55:40 PM kernel USBF: 6884.390 AppleUSBEHCI\[0x3c4e000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)+
    \[repeated 4 times at 6sec interval]
    +2008-08-17 4:56:07 PM kernel USBF: 6911.911 \[0x3dad300] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 1 of hub @ location: 0xfd000000)+
    +2008-08-17 4:56:07 PM kernel disk1s1: media is not present.+
    \[repeated 4 times]
    +2008-08-17 4:56:07 PM kernel disk1s1: media is not present.+
    +2008-08-17 4:56:14 PM kernel USBF: 6918.393 AppleUSBEHCI\[0x3c4e000]::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 0, EP: 0)+

  • When i connect my iphone 5 to my pc using the usb cable, my device is not recognized yet when connected to a power source, it charges normally. What should i do to rectify the problem and read sth about debris being in the usb. How do i remove that?

    When i connect my iphone 5 to my pc using the usb cable, my device is not recognized yet when connected to a power source, it charges normally. What should i do to rectify the problem and read sth about debris being in the usb. How do i remove that?

    iOS: Device not recognised in iTunes
    Windows: http://support.apple.com/kb/TS1538

  • Neither my iPod Touch nor my iPhone will show up in iTunes when I plug in through the USB cable.  My software is updated, I've restarted everything, I've reset the devices, but still no luck.  Help?!

    Neither my iPod Touch nor my iPhone will show up in iTunes when I plug in through the USB cable.  My software is updated, I've restarted everything, I've reset the devices, but still no luck.  Help?!

    Check your System Profiler to see if your computer is recognizing them. You may need to reset the computers SMC.
    Resetting the System Management Controller  >>
    Basic troubleshooting steps. 
    17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G + 120G OCZ Vertex 3 SSD Boot HD 

  • How to put computer to sleep or reset USB bus from Terminal?

    I'm using Missing Sync to connect a Windows Mobile PocketPC to my Mac for synchronizing data. Occasionally, as soon as I plug in the USB cable, the whole system gets hung. My mouse and keyboard don't work, but I can get into the system via SSH from another machine. Once I'm in, is there anything I can do that's more graceful than using the button on the front of the Mac to shut it off? For example, can I get it to sleep (and then wake up) from terminal? Maybe that will reset things. Or maybe there's a way to re-init the USB bus from terminal. Any suggestions? I hate shutting it off via the button - what's the better way, once it gets hosed like that?
    Mike

    There may be other processes you can kill instead (or in addition), but without
    seeing more about the state of the machine it's hard to tell.
    what information would you want to see about the state of the machine? Is there something in the console log that I can post? I'd like to be ready with all of the possible KILLs when this happens again... In general, what processes do I kill to reset stuff without a hard reset? Logging me out of the account is fine; a graceful software reboot is ok too - I just hate the cold shutdown from the power button.
    Thanks!
    Mike

  • How to remove the IT policy from my Torch 9800, or how to reset the device to original setting

    I have a Torch 9800 formerly- used for business emails. According to our company policy there was an IT policy installed to the device hence would force the user to set password protecting the device.
    Now this device has been retired and I like to use it only for regular phone calls thus do not like to have a password protection. My question is:
    How to remove the IT policy from the device?
    or
    How to reset the device to original setting?
    I have been trying to swipe and scrub the device several times but that IT policy still exist. Need help......
    Solved!
    Go to Solution.

    See the RIM Knowledge Base article here for information on how to remove an IT Policy. See the Method Three in the link:
    KB14202 How to remove an IT policy from a BlackBerry smartphone
    Read this RIM Knowledge Base article to reset your device to the factory settings.
    KB18998 How to reset a BlackBerry smartphone to factory defaults
    1. If any post helps you please click the below the post(s) that helped you.
    2. Please resolve your thread by marking the post "Solution?" which solved it for you!
    3. Install free BlackBerry Protect today for backups of contacts and data.
    4. Guide to Unlocking your BlackBerry & Unlock Codes
    Join our BBM Channels (Beta)
    BlackBerry Support Forums Channel
    PIN: C0001B7B4   Display/Scan Bar Code
    Knowledge Base Updates
    PIN: C0005A9AA   Display/Scan Bar Code

  • Problems with multiple USB devices. (Possible Low Power on USB Bus)

    I believe I'm having an issue with the USB bus or one of my devices that I have installed on my iMac.
    I purchased this iMac along with a printer (HP C4280 All-in-One) as part of a promotion deal. I also have wireless logitech USB mouse, and iPhone and an 80gb 5th Gen iPod.
    My problem has to do with syncing the iPod and iPhone. Normally I have the printer attached to the iMac along with the USB mouse. Both devices function as expected. However I have problems when I connect the iPhone or iPod.
    iPod Symptoms: When I connect the iPod the iPod screen shows the flashing red circle with a line but iTunes never launches and the iPod never syncs.
    iPhone Symptoms: When I connect the iPhone the iPhone screen says Sync in Progress and iTunes does show the iPhone in the list of devices but a dialog appears giving me one of two messages (that I've seen so far) - [msg 1] Your iPhone is corrupt please disconnect then reconnect to restore. [msg 2] iPhone device timed out.
    I've been dealing with this problem for a couple months and found that if I disconnect the printer (HP C4280) then connected either other device then everything works just fine.
    I downloaded XCode 2.5 and launched the USB Prober utility. Then plugged in each device in turn and found some interesting findings.
    When connecting the iPhone (1st attempt) the USB Logger reported; (iTunes displayed msg 1 from above)
    128.517 [1] USB Device iPhone is violating Section 9.3.5 of the USB Specification -- Error in GetConfigDescriptor( wLength = 4)
    128.520 [1] USB Low Power Notice: The device "iPhone" cannot be used because there is not enough power to configure it
    128.528 [1] USB Low Power Notice: The device "iPhone" cannot be used because there is not enough power to configure it
    128.629 [1] AppleIRController[0x2dc8e00]::RearmInterruptRead immediate error 0xe000404f queueing read, clearing stall and trying again(1)
    When connecting the iPod (1st attempt) the USB Logger reported; (iTunes never showed that the iPod devices was connected)
    938.797 [1] USB Device IOUSBDevice is violating Section 9.3.5 of the USB Specification -- Error in GetConfigDescriptor( wLength = 4)
    938.801 [1] IOUSBCompositeDriver[0x39b9f80](IOUSBDevice) SetConfiguration (1) returned 0xe00002ed
    938.900 [1] AppleIRController[0x2dc8e00]::RearmInterruptRead immediate error 0xe000404f queueing read, clearing stall and trying again(1)
    When connecting the iPhone (2nd attempt) the USB Logger reported; (iTunes displayed msg 2 from above)
    1789.023 [1] AppleIRController[0x2dc8e00]::RearmInterruptRead immediate error 0xe000404f queueing read, clearing stall and trying again(1)
    1802.166 [1] AppleUSBEHCI[0x28a7000]::Found a transaction which hasn't moved in 5 seconds on bus 253, timing out!
    1809.166 [1] AppleUSBEHCI[0x28a7000]::Found a transaction which hasn't moved in 5 seconds on bus 253, timing out!
    I'm suspicious of the USB Low Power Notice. If this is true then I suspect the my iMac might need some type of repair. However I am also suspicious of USB Device violating the USB Spec Error. Although this is the message that appears when I plug in the iPhone or iPod I don't think I can assume that error relates to the iPod or iPhone. The error doesn't specify which USB Device is in violation.
    My current workaround is to unplug the printer every time I sync the iPhone or iPod which is cumbersome. I'm also worried that repeated connecting/disconnecting of USB plug for the printer will over time damage the USB port.
    I'm not sure what options I have here. Can anyone provide some suggestions or information that might provide some insight.
    Best Regards,
    xgnomex

    A-Ha! Now I'm feeling like my 1.5 hours of reading this forum are not wasted, since I've found others with similar symptoms.
    I've only had my iMac for two weeks today. I've got some new accessories & have experimented with the ones I've had awhile (various USB external drives). My model has 3 USB ports, one of which is taken by the keyboard, of course.
    Over the weekend, I picked up an MS Office 2008 Upgrade and also an HP Officejet Pro L7680 all-in-one. I only mention the Office upgrade because I installed it on the same day as the printer, but it's possibly unrelated.
    I actually have a Belkin 4-port hub--not the same one suggested in this thread, but externally powered with it's own A/C adapter. (It's a Hi-Speed USB 2.0 r-Port Hub, model F5U234 Rev.3, and I used it with a previous iMac G3 CRT with no problem.)
    So with a LaCie 100 GB USB Mobile Drive in one of the iMac's ports, and the HP L7680 in the iMac's third port, or the HP via the Belkin hub in iMacs the third hub, here are some of the symptoms I've seen:
    1) while browsing in Firefox, suddenly the mouse-cursor will "freeze" (get stuck) in a pull-down selector...sometimes it unfreezes, but eventually (like on the next pull-down menu) the keyboard & mouse will shut off (and if you wait & the iMac goes to sleep, the keyboard won't let me enter my unlock password when I wake the iMac with the Apple Remote)
    2) when trying to open a document from the LaCie in MS Word, Word freezes and the keyboard & mouse go dead--terminal beachball--to restart the computer, I have to hold in the power button
    3) when trying to print a message in Mail, Finder freezes (though the print job does finish)
    These symptoms seem strange! Hey, it's just supposed to work, right? But everything has limits, so my question becomes, "how much stuff can I hook up at once?"
    I wonder if this Apple article is addressing this issue:
    http://docs.info.apple.com/article.html?artnum=25243
    especially when it says "Two high-bandwidth devices or two isochronous devices cannot be connected to a single Universal Serial Bus (USB)."
    So only two hi-speed USB devices can be connected "to the same bus" simultaneously? I'm not entirely sure I understand what "isochronous" means, but I'm thinking I need to peel my printer off the USB somehow, maybe via Airport Express--?
    Does anyone know for sure about USB limitations? Thanks.
    Also, xgnomex, how/where did you find that "USB Logger"? Is that something iPhone-specific, or is it an OS X log in a Library somewhere?

  • USB Drive Resets during file copy, interrupting file operations

    Fresh Arch Linux install, working USB thumb drive (Windows, previous Arch Linux setups, etc.), formatted FAT32.
    Seems to randomly reset, eject, and auto-re-mount during extensive file operations (i.e. copying 4gb worth of 800 files from the USB thumb drive to disk).
    I've tried various USB ports to no avail; no external hub being used.
    Thoughts? Not sure where to begin diagnosing:
    dmesg:
    usb 1-1: configuration #1 chosen from 1 choice
    scsi17 : SCSI emulation for USB Mass Storage devices
    usb-storage: device found at 15
    usb-storage: waiting for device to settle before scanning
    scsi 17:0:0:0: Direct-Access OCZ RALLY2 1100 PQ: 0 ANSI: 0 CCS
    sd 17:0:0:0: Attached scsi generic sg2 type 0
    usb-storage: device scan complete
    sd 17:0:0:0: [sdb] 31326208 512-byte logical blocks: (16.0 GB/14.9 GiB)
    sd 17:0:0:0: [sdb] Write Protect is off
    sd 17:0:0:0: [sdb] Mode Sense: 43 00 00 00
    sd 17:0:0:0: [sdb] Assuming drive cache: write through
    sd 17:0:0:0: [sdb] Assuming drive cache: write through
    sdb: sdb1
    sd 17:0:0:0: [sdb] Assuming drive cache: write through
    sd 17:0:0:0: [sdb] Attached SCSI removable disk
    usb 1-1: reset high speed USB device using ehci_hcd and address 15
    sd 17:0:0:0: [sdb] Unhandled error code
    sd 17:0:0:0: [sdb] Result: hostbyte=0x07 driverbyte=0x00
    end_request: I/O error, dev sdb, sector 7589504
    sd 17:0:0:0: [sdb] Unhandled error code
    sd 17:0:0:0: [sdb] Result: hostbyte=0x07 driverbyte=0x00
    end_request: I/O error, dev sdb, sector 7589744
    sd 17:0:0:0: [sdb] Unhandled error code
    sd 17:0:0:0: [sdb] Result: hostbyte=0x07 driverbyte=0x00
    end_request: I/O error, dev sdb, sector 7589776
    usb 1-1: USB disconnect, address 15
    FAT: bread failed in fat_clusters_flush
    FAT: FAT read failed (blocknr 3805)
    FAT: Directory bread(block 24147944) failed
    FAT: FAT read failed (blocknr 3818)
    <snip lots of repeats>
    FAT: FAT read failed (blocknr 4032)
    FAT: bread failed in fat_clusters_flush
    FAT: bread failed in fat_clusters_flush
    FAT: bread failed in fat_clusters_flush
    usb 1-1: new high speed USB device using ehci_hcd and address 16
    usb 1-1: configuration #1 chosen from 1 choice
    scsi18 : SCSI emulation for USB Mass Storage devices
    usb-storage: device found at 16
    usb-storage: waiting for device to settle before scanning
    scsi 18:0:0:0: Direct-Access OCZ RALLY2 1100 PQ: 0 ANSI: 0 CCS
    sd 18:0:0:0: Attached scsi generic sg2 type 0
    usb-storage: device scan complete
    sd 18:0:0:0: [sdb] 31326208 512-byte logical blocks: (16.0 GB/14.9 GiB)
    sd 18:0:0:0: [sdb] Write Protect is off
    sd 18:0:0:0: [sdb] Mode Sense: 43 00 00 00
    sd 18:0:0:0: [sdb] Assuming drive cache: write through
    sd 18:0:0:0: [sdb] Assuming drive cache: write through
    sdb: sdb1
    sd 18:0:0:0: [sdb] Assuming drive cache: write through
    sd 18:0:0:0: [sdb] Attached SCSI removable disk
    lsusb -v for the drive:
    Bus 001 Device 016: ID 0325:ac02 OCZ Technology Inc ATV Turbo / Rally2 Dual Channel USB 2.0 Flash Drive
    Device Descriptor:
    bLength 18
    bDescriptorType 1
    bcdUSB 2.00
    bDeviceClass 0 (Defined at Interface level)
    bDeviceSubClass 0
    bDeviceProtocol 0
    bMaxPacketSize0 64
    idVendor 0x0325 OCZ Technology Inc
    idProduct 0xac02 ATV Turbo / Rally2 Dual Channel USB 2.0 Flash Drive
    bcdDevice 11.00
    iManufacturer 1 OCZ Technology
    iProduct 2 RALLY2
    iSerial 3 AA04012700275633
    bNumConfigurations 1
    Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 32
    bNumInterfaces 1
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0x80
    (Bus Powered)
    MaxPower 300mA
    Interface Descriptor:
    bLength 9
    bDescriptorType 4
    bInterfaceNumber 0
    bAlternateSetting 0
    bNumEndpoints 2
    bInterfaceClass 8 Mass Storage
    bInterfaceSubClass 6 SCSI
    bInterfaceProtocol 80 Bulk (Zip)
    iInterface 0
    Endpoint Descriptor:
    bLength 7
    bDescriptorType 5
    bEndpointAddress 0x81 EP 1 IN
    bmAttributes 2
    Transfer Type Bulk
    Synch Type None
    Usage Type Data
    wMaxPacketSize 0x0200 1x 512 bytes
    bInterval 255
    Endpoint Descriptor:
    bLength 7
    bDescriptorType 5
    bEndpointAddress 0x02 EP 2 OUT
    bmAttributes 2
    Transfer Type Bulk
    Synch Type None
    Usage Type Data
    wMaxPacketSize 0x0200 1x 512 bytes
    bInterval 255
    Device Qualifier (for other device speed):
    bLength 10
    bDescriptorType 6
    bcdUSB 2.00
    bDeviceClass 0 (Defined at Interface level)
    bDeviceSubClass 0
    bDeviceProtocol 0
    bMaxPacketSize0 64
    bNumConfigurations 1
    Device Status: 0x0000
    (Bus Powered)
    Last edited by lieut_data (2009-12-26 17:39:56)

    Jithin wrote:
    When ever I copy some files or create a file in my external USB drive which is a FAT32 one. file permissions are not preserved.
    From <http://support.apple.com/kb/HT3764>:
    "The MS-DOS (FAT32) file system format does not support permissions, file owners, and groups. Such permissions are synthesized on Mac OS X with some default permissions. Because of this all files will have the same permissions […]"
    So it's not "how it work in mac", but it's a limitation of the FAT32 file system.

  • Bad "Device Removal" notice

    All I did was wake from sleep, and I got:
    "! Device Removal
    "The device you removed was not properly put away. Data might have been lost or damaged. Before you unplug your device, you must first select its icon in the Finder and choose Eject from the File menu."
    But I didn't remove any device. The volumes mentioned in the system log following were connected (firewire 800) throughout and test ok. I do have Spotless on and the volumes mentioned are (like several others) therein marked "indexing disabled" with auto off and no existing index. Note in particular that the messages "media not present" refer to volumes which are physically connected and function perfectly before and after the sleep.
    I hope somebody can tell me what's going on. (This has suddenly cropped up.)
    Sep 7 18:29:08 Emily kernel[0]: System Sleep
    Sep 7 18:29:08 Emily kernel[0]: Enabling XMM register save/restore and SSE/SSE2 opcodes
    Sep 7 18:29:08 Emily kernel[0]: Started CPU 01
    Sep 7 18:29:08 Emily kernel[0]: Enabling XMM register save/restore and SSE/SSE2 opcodes
    Sep 7 18:29:08 Emily kernel[0]: Started CPU 02
    Sep 7 18:29:08 Emily kernel[0]: Enabling XMM register save/restore and SSE/SSE2 opcodes
    Sep 7 18:29:08 Emily kernel[0]: Started CPU 03
    Sep 7 18:29:08 Emily kernel[0]: System Wake
    Sep 7 18:29:08 Emily kernel[0]: USB caused wake event (EHCI)
    Sep 7 18:29:08 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:08 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:09 Emily kernel[0]: M-FW: M-Audio FireWire device found.
    Sep 7 18:29:09 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:09 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:09 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:09 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:09 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:09 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:09 Emily kernel[0]: M-FW: metanub 0x76A1E00 GUID:d6c0110384013
    Sep 7 18:29:10 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:10 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:10 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:10 Emily kernel[0]: Intel8254x -- Link Up -- 00:17:f2:0c:29:73 -- called by interruptOccurred() --
    Sep 7 18:29:10 Emily kernel[0]: -- Auto-Negotiation Advertisement Register (04d) = 0xde1
    Sep 7 18:29:10 Emily kernel[0]: -- Auto-Negotiation Link Partner Ability Register (05d) = 0x41e1
    Sep 7 18:29:10 Emily kernel[0]: -- Auto-Negotiation Gigabit Advertisement Register (09d) = 0xe00
    Sep 7 18:29:10 Emily kernel[0]: -- Auto-Negotiation Gigabit Link Partner Ability Register (10d) = 0x4000
    Sep 7 18:29:10 Emily kernel[0]: -- PHY Specific Status Register (17d) = 0x6c48
    Sep 7 18:29:10 Emily kernel[0]: Intel8254X -- Negotiated Speed: 100 Mb/s, Duplex: Full, Flow Control: Receive Pause Disabled, Transmit Pause Disabled
    Sep 7 18:29:10 Emily kernel[0]: M-FW: FireWire bus reset completed.
    Sep 7 18:29:12 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:12 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:12 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:12 Emily kernel[0]: M-FW: FireWire bus reset completed.
    Sep 7 18:29:14 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:14 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:14 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:14 Emily kernel[0]: M-FW: FireWire bus reset completed.
    Sep 7 18:29:15 Emily configd[40]: posting notification com.apple.system.config.network_change
    Sep 7 18:29:15 Emily lookupd[838]: lookupd (version 369.8) starting - Mon Sep 7 18:29:15 2009
    Sep 7 18:29:16 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:16 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:16 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:16 Emily kernel[0]: M-FW: FireWire bus reset completed.
    Sep 7 18:29:16 Emily kernel[0]: M-FW: Firnware active and we already started matching..
    Sep 7 18:29:16 Emily kernel[0]: M-FW: Bootloader active: starting firmware.
    Sep 7 18:29:18 Emily kernel[0]: Write for 0x6ef6600 done, status e00002d7
    Sep 7 18:29:19 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:19 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:19 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:20 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:20 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:20 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:20 Emily kernel[0]: M-FW: FireWire bus reset completed.
    Sep 7 18:29:20 Emily kernel[0]: M-FW: FireWire bus reset completed.
    Sep 7 18:29:20 Emily kernel[0]: M-FW: Trying to resend mixer settings too often (within 1 second of previous resend)
    Sep 7 18:29:37 Emily kernel[0]: M-FW: Reregister: device node vanished.
    Sep 7 18:29:37 Emily kernel[0]: disk1s3: media is not present.
    Sep 7 18:29:37 Emily kernel[0]: jnl: dojnlio: strategy err 0x6
    Sep 7 18:29:37 Emily kernel[0]: jnl: end_transaction: only wrote 0 of 16896 bytes to the journal!
    Sep 7 18:29:37 Emily kernel[0]: jnl: close: journal 0x6c23bb4, is invalid. aborting outstanding transactions
    Sep 7 18:29:37 Emily kernel[0]: disk1s5: media is not present.
    Sep 7 18:29:37 Emily kernel[0]: jnl: dojnlio: strategy err 0x6
    Sep 7 18:29:37 Emily kernel[0]: jnl: end_transaction: only wrote 0 of 16896 bytes to the journal!
    Sep 7 18:29:37 Emily kernel[0]: jnl: close: journal 0x6c23908, is invalid. aborting outstanding transactions
    Sep 7 18:29:46 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:46 Emily kernel[0]: M-FW: FireWire bus reset started.
    Sep 7 18:29:46 Emily kernel[0]: M-FW: FireWire bus reset completed.
    Sep 7 18:29:46 Emily kernel[0]: M-FW: FireWire bus reset completed.
    Sep 7 18:29:48 Emily kernel[0]: jnl: replay_journal: from: 2102272 to: 2143744 (joffset 0x4a0000)
    Sep 7 18:29:48 Emily diskarbitrationd[43]: disk1s5 hfs 99D63266-6DAC-340C-8DF5-78500F105CA9 Odd External /Volumes/Odd External
    Sep 7 18:29:48 Emily kernel[0]: jnl: replay_journal: from: 4165632 to: 4215296 (joffset 0x2aa000)
    Sep 7 18:29:48 Emily diskarbitrationd[43]: disk1s3 hfs 35148003-8ED6-3AB0-8E9F-9058F72A6CB7 Odd External Boot /Volumes/Odd External Boot
    Sep 7 18:29:48 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:48 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:48 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:48 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:48 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:48 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:48 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:48 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:48 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:49 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:49 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:49 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:49 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    Sep 7 18:29:49 Emily authexec: executing /System/Library/ScriptingAdditions/StandardAdditions.osax/Contents/MacOS/uid
    "Emily" is of course my Mac Pro's name, in honour of Emily Dickinson.

    Hi Dawn,
    Are any of these devices Bus powered?
    Seems this is the problem area...
    Sep 7 18:29:37 Emily kernel[0]: M-FW: Reregister: device node vanished.
    Sep 7 18:29:37 Emily kernel[0]: disk1s3: media is not present.
    Sep 7 18:29:37 Emily kernel[0]: jnl: dojnlio: strategy err 0x6
    Sep 7 18:29:37 Emily kernel[0]: jnl: end_transaction: only wrote 0 of 16896 bytes to the journal!
    Sep 7 18:29:37 Emily kernel[0]: jnl: close: journal 0x6c23bb4, is invalid. aborting outstanding transactions
    Sep 7 18:29:37 Emily kernel[0]: disk1s5: media is not present.
    Sep 7 18:29:37 Emily kernel[0]: jnl: dojnlio: strategy err 0x6
    Sep 7 18:29:37 Emily kernel[0]: jnl: end_transaction: only wrote 0 of 16896 bytes to the journal!
    Sep 7 18:29:37 Emily kernel[0]: jnl: close: journal 0x6c23908, is invalid. aborting outstanding transactions
    Might be a bad Journal file, which is hard to overcome.

  • HP DV6c63sl USB ports problem, (Unknown Device)..

    Hello,
    I have a problem with my USB ports, when I connect my phone with it's USB cable, it's shown as "Unknow Device" and that's just in my laptop.. My other laptop and Desktop PC can detect it without any problem or drivers, and I have the same exact OS ( Windows 7 x64 Ultimate ) on my 3 PCs.
    I have the same problem with a Game Controller (PowerPad), it works on all the PCs I've tried it on except my HP DV6c63sl. There's just my USB Mouse that works fine, and almost all other USB devices that I've tried are detected as "Unknow Device", And I've got also a "SM Bus Controller" shown in the "Device Manager window" -when I plug in my USB Game Controller- as undetected, I don't know what it is..
    Here's some screens that I think they would help to identify my problem :
    & Thank you very much for your help !
    I really wants my Laptop to detect all the USB devices like my others PCs ( I'm talking about USB mouses, keyboards, game pads, phones with USB cables.. that get detected automatically without installing any drivers )

    Hello Huntrz,
    I understand you are having issues with your Windows 7 not recognising a USB device when it is plugged in. I stumbled across a thread on social.technet.microsoft.com titled USB Device Not Recognized on Windows 7 - USB mouse where they discuss a solution that resolved their issue. Now I know your mouse works, but the point is that a USB device should automatically install that is the whole purpose or USB on a computer devices are to be plug and play. Anyways, what they discuss is that what is called a Hard Reset resolved their issue. I am providing you with an HP Support document: Performing a Hard Reset or Forced Reset that will walk you through the steps to performing a Hard Reset on your Notebook.
    Please re-post with the results as I am curious as well. Thank you for posting this issue on the HP Forums. Have a great day!
    Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
    Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
    Dunidar
    I work on behalf of HP
    Find out a bit more about me by checking out my profile!
    "Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

  • Can an aftermarket display tax the USB bus?

    I just had a very weird issue, I purchased a 22" samsung DVI display I got pretty cheap off of Ebay, I originally was using a 20" Cinema Display and love it, but I want like most of us I guess ,more real estate. The Samsung has no USB ports as the Apple display, which I guess for me is the first issue as I use a wireless keyboard connected to USB, A Digidesign MBox2 connected to USB a iLoc key and yeah, connected to USB AND my wireless USB aircard. I had to use my old Apple keyboard as a USB hub because I of course ran out of ports on the computer and no longer had any on the display, maybe that's my issue but I didn't think I had so much to load down the usb ports from the computer. My air card began acting erraically, my MBox2 died and upon reboot I got a message warning that USB device was no operational due to low power in the USB bus. Is my problem the fact that I don't have an additional powered USB hub anymore (cinema display)? or could the Samsung display be at fault? Going back to the 20" seems to have solved all my problems, so far. But I really want the larger size, However I don't want to spend on a USB hub unless I really have to.

    Hi-
    Your Samsung is not at fault.
    The hub in the Cinema Display has additional power, which helps with multiple devices.
    Using the keyboard hub is no good with unpowered devices, as there is no additional power to the ports.
    You just need a powered USB hub to connect all the other devices.

  • Device removal error.....   The card reader ejects itself

    Hello, I'm new to macs and purchased a Mac Mini a week ago. Things were going well until I needed to move pictures from a digital camera to my mac.
    I purchased a GE 19 in 1 card reader which is built for mac os x. I hook it up to a usb port and try and look at some pictures. After a few seconds, the card reader ejects itself and I get the "device removal" error. The error will then continue to appear over and over again. When I try to eject the reader using by clicking eject, the reader ejects and only reappears a minute later and ejects itself again. I've tried using another usb port and I know for sure that its not the cable.
    If I can't get any prompt answer here, I'm going to call the Genius bar tomorrow morning and ask about the problem. <Edited by Moderator>

    More often than not, when a card reader or other similar device disconnects from the USB bus because it is drawing too much power. In a card reader, that would not unusually be triggered not by the card reader itself, but by the insertion of a card causing it to read the content and mount the volume on the Mac's desktop. Part of the problem is that while everything is invariably quoted as USB compatible, many such devices don't entirely comply with the USB standard, resulting in conflicts or load demands which may be borderline, or worse.
    You may be able to get more reliable performance from your reader by disconnecting other USB devices when you are trying to use it, or by using it with a powered USB hub. Occasionally, borderline problems can be temporarily resolved by connecting the device to a different port, if necessary switching devices around. Alternatively, it may be that in an attempt to produce a device with the greatest flexibility in terms of media compatibility, they have compromised on components.
    I would generally recommend a card reader designed for the specific card type you need. These are typically far more reliable. If you need to use different types of card media, then be prepared to spent on a well established brand with a reputation in this sector of the market, such as SanDisk.

  • Sudden device removal via Firewire 800

    I just purchased a MacBook Pro. I have a LaCie rugged drive that is a clone of my old iBook running Panther. I connected the LaCie via Firewire to the MBP to transfer some files. (Migration Assistant didn't get everything???) The LaCie kept suddenly disconnecting, resulting in a device removal error. I have two different cables; tried them both. It connected to the old iBook last night with no removal error.
    Any ideas??

    Here's what LaCie had to say:
    Thank you for contacting LaCie Technical Support. As the issue you describe is an intermittent issue, it is difficult to pin point the exact issue and an exact resolution.
    Mobile drives are commonly referred to as "Bus Powered" devices. They don't typically require an external power supply, and are powered by the ports on the computer. Ordinarily this is an acceptable amount of power, however, not all machines are capable of running these devices.
    Most mobile drives require approximately 4 watts of energy to run. Most computers produce this, so it isn't a problem. There are exceptions, however. The physical symptom of insufficient power is a soft "clicking" sound. OS behavior can vary.
    * On Mac OS X, the mobile drive can appear as an "Unknown Device" in Apple System Profiler (ASP), appear in an unusual way in Disk Utility, refuse to format with error -36, or have no reaction at all
    * On Windows, the drive can appear with a Code 10 error in Device Manager, appear in an unusual way in Disk Management, refuse to format, or have no reaction at all.
    All mobile drives have a "USB Power Sharing" cable included in the box. If a power problem is suspected, connect this cable to a second USB port on the computer. This will allow the drive to take more power, and can possibly make the difference in allowing it to work. Also, ensure the drive is not connected to a USB Hub of any kind. Connect all bus-powered devices directly to the computer USB ports.
    Let us know the results.
    Thoughts? Anyone?

  • Bogus "Device Removal" Alert for SDcard Reader

    Using the same SDcards, same reader, same USB hub as I did before the 10.5.8 update, I now get a "Device Removal" alert after a period of time once an SDcard is inserted. It varies from just a minute or two to around an hour or more. When I click off the alert window the card remounts right away but the alert always comes back after a while.
    Something tells me a PRAM zap might fix it, but is anyone else seeing this with 10.5.8?

    More Info: After resetting PRAM and a reboot, still the same symptoms except this time, after the "Device Removal" message came up. the lights on the reader flashed for a while and then the following alert window appeared: "Disk Repair The disk "NO NAME" was not repairable by this computer. It is being made available to you with limited functionality. You must back up your data and reformat the disk as soon as possible." Never saw that one before. This alert finally went away by itself, another "Device Removal" alert appeared, and now it's continually mounting the card then showing the removal alert, every few minutes.

  • My problem is that one of the USB ports and the device does not detect this and inactive but can not find how to reactivate.Help me please! greetings thanks!

    Hello good evening, I have a MacBook Pro and my problem is that one of the USB ports and the device does not detect this and inactive but can not find how to reactivate.
    Help me please! greetings thanks!

    Do you have the Firefox new tab page but the actual sites are missing, or do you have some other page?
    If you have some different page, try the quick fix in Fred McD's reply.
    If the sites are missing, did you use the Reset feature? That will clear the storage associated with the new tab page. I'm not sure it's possible to recover from that; you probably need to rebuild your page from scratch as you browse.
    For possible future reference, here is how to access the hidden setting for the page to display on new tabs:
    (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter. Click the button promising to be careful.
    (2) In the search box above the list, type or paste '''newtab''' and pause while the list is filtered
    (3) Double-click the '''browser.newtab.url''' preference and enter your preferred page:
    * ''Page thumbnails (default)'' => about:newtab
    * ''Blank tab'' => about:blank
    * ''Built-in Firefox home page'' => about:home
    * ''Any other page'' => full URL to the page
    Press Ctrl+t to open a new tab and verify that it worked. Fixed?
    Some gotchas:
    ''If Firefox won't let you edit this setting:'' you may have something called SearchProtect on your system.
    ''If Firefox lets you save your change but ignores it:'' one of your extensions may be overriding it. You can review, disable, and/or remove extensions on the add-ons page:
    "3-bar" menu button (or Tools menu) > Add-ons > ''in the left column click'' Extensions
    ''If the change works during your session, but at the next startup is back to an unwanted page:'' you might have a user.js file in your personal Firefox settings folder (your Firefox profile folder). This article describes how to track down and remove the file: [[How to fix preferences that won't save]].
    Any luck?

Maybe you are looking for