Mac OS X moutainlion USB problems

From one day to another my iMac lost the USB-port!
Neither my iPhone nor my iPad, Canon-Scanner or Canon-SLR-Camera won't show up on none oft the usb ports.
Neither iPhonto, iTunes, ImageCapture nor any other application connects to the devices.
Deactivating antivirus software and any other startup-items did not solve the problem, nor did resetting PRAM help anything.
The information from my system to USB is:
USB-Hochgeschwindigkeitsbus:
Ort für Host-Controller:    USB (Integriert)
Treiber für Host-Controller:    AppleUSBEHCI
PCI Geräte-ID:    0x1c2d
PCI Revisions-ID:    0x0005
PCI Hersteller-ID:    0x8086
Bus-Nummer:    0xfa
Does anybody know, how to solve this problem?
Thank you very much in advance!
Reinhard

Thx for reminding me! Yes, I have extended Apple Care for this iMac 27"
And meanwhile I found out, that iTunes does recognize an iPodNano, as well as the USB-Port recognizes USB-Sticks. Yesterday I called the AC-Hotline and now I think about doing a clean-install of the Mac OS X ...
once in while one should do this anyhow!
Thank you very much!
MacRandy

Similar Messages

Mac Pro Late 2013 USB problems / freezing

I have a quad-core CPU Mac Pro late 2013 (Model Identifier: MacPro6,1). MacOS X 10.9.5.
I have had all sorts of USB devices hooked up to it. At any one time, I usually have all 4 ports filled. I have a 3TB USB 3.0 disk that stores my large files, a USB mouse and keyboard (logitech with a usb mini dongle), a cable to charge my logitech USB cordless mouse, Lightning cable to my iPhone 5, and other things that I rotate in and out, like CF card reader, Audio Box USB audio interface from PreSonus, Sony Webcam, etc.
About 3 months into having the Mac Pro, I noticed that my keyboard went dead in the middle of using it. The mouse was dead too. I blamed the RF dongle that they both share, because the Apple Magic Trackpad (bluetooth) I have still functioned. Try as I might, I couldn't get the keyboard or mouse to work again, so I used the Magic Trackpad to restart the machine, and then my keyboard and mouse worked again.
It wasn't until later that I realized that all the USB busses on the machine had frozen or "died" temporarily. I realized it later because my USB hard drive complained about being "ejected improperly."
Now I have had the USB die on the Mac Pro at least 15 times over the last month and a half. Usually once every two days or so.
I have tried (almost one by one) using some of the USB devices on the mac, and removing others to ascertain if it's a certain USB device that is causing this. But the odd thing is that I never get a message from the OS like "xxx USB device is drawing too much power."
I'm going a little nuts here because I cannot see any rhyme or reason to the USB interface lock ups. And each time it happens, all the USB devices go dead until I restart. Sometimes, I'm able to SSH into the machine from my iPhone and issue a "shutdown -h now" and even though I see the Mac OS X UI shutdown, it never fully halts. I often have to hold the power button to get the machine to turn off.
I really can't say if it's software related, hardware related or what. I've tried to watch my workflow carefully to see if anything seems to make a pattern, but nothing yet.
Any suggestions? Is anyone else seeing behavior like this? Do we think it's a USB device... or is my Mac Pro flakey?
Thanks!

I was using a hub, so I immediately removed that upon the first issues. But the USB has still frozen after the removal of the hub. The HD is a self powered G-Tech drive. I'll have to play around a bit more will all of your suggestions this weekend.
I woke up the computer just now to check the discussion, an am greeted with a notification from Mavericks that the "Disk Not Ejected Properly. (Eject disk before disconnecting or turning it off)" which the disk is still connected, and the usb seems to still work fine. In fact I was able to unplug the USB cable for the G-Tech HD, and then replug it in, everything reappeared fine. The USB bus was not frozen (this time).
But it's this kind of flakiness that has me coming and going. I haven't (yet) been able to identify whether the USB is the problem or the driver or a third thing I haven't figured out...

MAC PRO USB Problem - Traced to bad Apple Keyboard Extension Cable

I found a fix to a problem synching to my itunes Library on my early 2008 MAC PRO. The Apple supplied USB extension cable for the keyboard was defective.
The symptoms were hangs in itunes and finder synching to iPods and transferring data to USB hard drives. The iPods and hard drives never lost power and no errors/log entries were made. The transfers simply stalled and would not continue. itunes and finder would hang until the drive or ipod was removed. These devices were installed directly to USB ports on the MAC PRO. No other USB devices were connected except for the aluminum keyboard and mighty mouse; the mouse was connected to the keyboard. The keyboard was connected using the USB extension cable that shipped with the MAC PRO.
Hardware diagnostics were all clear. The keyboard and mouse never had any connection problems. Only itunes syncs and hard drive copies would fail; these would occur at random times. I had an open ticket with Apple to have the logic board replaced as it was diagnosed to be a hardware/USB problem.
Removal or replacement of the extension cable on the keyboard (which was connected to a different USB port and NOT in the USB chain with the ipod and hard drives) permanently fixed the problem. I cancelled the Apple HW replacement.
I have noted several posts with others having problems with USB ports and devices. I wonder if Apple has an unknown problem with bad keyboard extension cables.

I think you may be onto something there. I'm just a few weeks into my second Mac Pro and again it's having the same USB problems which led Apple to give me a replacement machine previously. I went through several weeks of considerable testing with Apple Engineers prior to that - an Apple Care application to collect data from my machine, Apple Developer USB prober and two clean installs. The latest machine initially showed no sign of the problem then it started again - 2 iPods "can not be read or written to" part way through sync, Aperture quitting importing from USB SD card reader, USB drives dismounting etc. So I pulled out the Aluminium keyboard and, lo and behold, the iPods managed to get all the way through synching without errors. I really like the alu keyboard so it's a huge shame that it might be the cause of all my problems so far - and the Mac Pro is otherwise a beautiful computer.
But is this really a hardware problem of the internal USB cards and power management or supply?

Trying to record the school band using Garage band and a Pevey PV14 USB. Have connected the mixer to the Mac using a standard USB lead (is that a problem) but after enabling multitrack option we get the error message

Trying to record the school band using Garage band and a Pevey PV14 USB. Have connected the mixer to the Mac using a standard USB lead (is that a problem) but after enabling multitrack option we get the error message
'Can't enable track for recording. Input channel already in use.'
What are we doing wrong?
Thanks

skim this tutorial:
http://www.bulletsandbones.com/GB/Tutorials.html#bsqrecordmultipletracks
(Let the page FULLY load. The link to your answer is at the top of your screen)

New Mac Pro USB Problems!

It seems the new Mac Pro cannot recognize certain devices. Such as my Access Virus Ti synthesizer- users cannot get the Mac to recognize the USB connection from the Virus. Please help. I'm losing my mind after 7 hours trying to figure it out and the only indication is that the USB ports on the new mac are possibly incompatible... Please tell me I can still use my $3000 instrument with my new $4500 mac pro which i just bought SPECIFICALLY to use with this VIrus Ti synthesizer!
Link to Virus Ti user forums showing other people with the same problemhttp://www.virus.info/forum/index.php/Thread/5522-MacPro-trashcan-and-TI-Anyone- got-it-working/?postID=28004&highlight=trash%2Bcan#post28004

From what you said it appears that the synthesizer is not compatible. That would be a problem for the synthesizer manufacturer to resolve.

I have been connecting my external HD to my Mac for 2 years, no problem at all. Yesterday, I could not connect it and appeared the message: USB ports disconnect due to energy. I already checked many blogs and this site for answer. Can someone help me

I have been connecting my external HD to my Mac for 2 years, no problem at all. Yesterday, I could not connect it and appeared the message: USB ports disconnect due to energy. I already checked many blogs and this site for answer. Can someone help me? How can I fix it?

Hi, clara_from_brazi.
Thank you for visiting Apple Support Communities.
Here are some troubleshooting steps that I would recommend when experiencing this issue. Also, test connecting the external storage device to the computer with another cable as this can be the issue.
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/ht3964
Apple Computers and Displays: Powering peripherals through USB
http://support.apple.com/kb/HT4049
Cheers,
Jason H.

Can a Mac Update disable a USB mobile broadband device?

Hi all,
Last night, my Clear internet went down on me, both home WiFi modem and plug-in USB mobile broaband device. One minute I was on the net and the next, not. After wasting 2 hours with Clear customer service, I gave up and started Googling and found some lovely folks here on Apple Support communities that suggested uninstalling Intego Virus Barrier X6. Well that worked to get my home WiFie modem up and running. But my MacBookPro (10.5.8) doesn't still see the USB device plugged in. It's not my USB port, as other devices work fine plugged into the same port.
I called Clear customer service back and they suggested that there is some phantom Mac Update that has disabled my USB device. I know they're bs-ing me. I think the device is broken. But I thought I"d see if any other Mac people have had a problems with a mobile Broadband device in connection with either Virus Barrier or Mac updates? I've googled lots of search terms and can find no one else with this complaint

No.
It is possible for the Mac (or another computer) to update the firmware of a device, but you would know if you did that. Likewise it is possible for the Mac to be unable to detect the device through its own fault - such as the Mac's USB ports or wifi failing. But the Mac's updates are only for the Apple hardware and software. Also, updates take effect immediately. Were you installing an update when your connection went down?
I think their tech support people are trying to get you off the line. If such a thing happened people would be reporting it all over the place, not just here. Ask them to point you to some reports. Ask which update did it.
Best of luck.

Can you boot a Mac Pro using a USB Pen Drive?

Hello.
Can you boot a Mac Pro using a USB Pen Drive? OS=Windows or Linux or BSD or MacOS... I know it is bios specific on a PC if the option is available. If this is possible, does anyone have a link to instructions?
Thanks,
Scott

Not to get in to an argument over semantics here, but by saying "Windows should boot if you have installed the requisite Boot Camp drivers," you are implying "that the Boot Camp drivers [are] needed for Windows to boot." I was just clarifying your post so people didn't get confused.
As for booting a Mac Pro off a USB flash drive, if you have been successful in doing so, can you share with me your method? I've tried booting of an OCZ Rally2 4GB flash drive and it's never worked on my Mac Pro. It doesn't show up when I hold option down and if I try to boot through rEFIt, I get an error about my Mac's firmware not supporting USB booting (I have the latest firmware installed, too). I've tried GPT and MBR partitions, both to no avail. Booting off USB hard disk drives is no problem though. And I can boot off this flash drive on a Core Duo iMac.
Any ideas?

2010 Mac Mini freezing on USB activity

A long-time Mac user client of mine bought a Mac Mini in August, It ran faultlessly until early in October when it began to freeze, most frequently when Time Machine was doing its thing with an external, USB-connected, hard drive.
Ten days I took it to an Apple dealer who ran the extended Mac Mini test suite without any hiccups. Returned from dealer and the Mini still froze, usually (always?) with USB activity.
Dealer replaced the HD and I retrieved the Time Machine backup, giving it back to the owner on Oct. 23.
No freezing for the first four days, but on Wednesday I got this message from the owner:
"Unfortunately I have to report that my computer froze on me again a few
minutes ago. I was opening (or trying to open) a Word document while the
backup was going on ... Maybe that's the problem?
I saw white streaks on the screen, and then the **** thing froze ..."
This morning (Friday) he tells me that the memory stick he also uses as a backup and to move files to an old iBook has been corrupted by the Mac mini: not readable by an original mac mini, the iBook or the new Mac Mini.
As it's a 120-mile round-trip for me, some suggestions as to where I should go from here would be welcome. One thing I am doing is taking a FireWire cable with me to connect the external Time Machine drive to see whether it really is a USB problem.

Thank you, Boece, for your thoughtful comments and suggestions.
Briefly, yes it's a new aluminum mini with only Apple installed RAM without a UPS. The backup drive is a Seagate 3.5" in a generic, powered, enclosure with both USB2 and Firewire capabilities. The enclosure does not allow the drive to spin down. A hub is used, but only to connect a printer and, very occasionally a digital camera. Hadn't thought about USB cables, but might give that a shot. The client also uses a USB-based wireless keyboard and mouse. As for changes coinciding with the onset of the problems, nothing other than whatever Snow Leopard updates there were at the time.
After creating this morning's original post, I took a cable to the client's house and attached the external drive using firewire. I also detached the wireless keyboard and mouse's USB transmitter, substituting just a regular Apple keyboard and mouse. After a re-boot I ran the Time Machine backup without any signs of freezing, and I got report tonight saying that the computer is back running without issues and that Time Machine has worked without any glitches.
While I'm not at all confident that the problems have gone away, it does seem to point to a USB-related issue, but whether that's at the board level or at the cable/device level is yet to be determined.

Mac Mini PPC and Usb wifi dongle?

So I have a ppc mac mini and I purchased a wifi dongle for it. (not the Belkin one)
I have drivers for it that appear to be correct, everything installs fine.
However when I go to network to configure the device there is no option to choose usb as a network interface. The only options are firewire, or internal modem.
I'm sure this has been addressed but I've searched and search.

Sorry wow been a long time since I was here, but things have progressed ... somewhat.
Turns out there were specific drivers that I was not in possession of. The manufacturer supplied them and I thought all was good.
Turns out I'm having another problem now that it took some time to figure out ...
The dongle works for a time, but seems to get booted from my router or something after going to sleep or rebooting.
The weird thing is that the dongle software itself and the mac os think its connected, it shows an IP address that isn't on my network.
If I reboot the router and then reset my IP on the mac mini it will work until it goes to sleep or reboots.
I updated my Linksys WRT54G to DDWRT to see if that would fix things but even with new firmware and reset settings only this mac is affected by this problem. Also the dongle doesn't do it on any other computer.
So its mac mini/dongle/router specific ...
thanks again for all the suggestions and help

Mac mini + usb2 external drive problems

Hello !
I have a huge problem with my mac mini - I find the same error on my power mac g5.
I use Tiger 10.4.1
So, I have the mac mini and 2 LACIE external Harddrives.
One Hardrives is allready full with about 40 GB data. Now I want t copy all the data from the one HD to the other hd.
BUT IT IS NOT WORKING - after about 4-8 GBs the system just stops copying data and the finder freezes.
I only can turn off the power.
This happens with or ithout hub.
Does anybody know something about USB problems on macs ?

Hello,
I am resurrecting this thread to see if there has been any recent "developments" concerning the under powered usb situation. I have a similar & frustrating encounter with the mini & a portable 40 gig wd passport hd. Believe me, I have tried EVERY combination of attaching this hard drive to the mini--powered usb hub, directly to the mini...I have even tried a 2 "headed" (for lack of a technical term) usb cable! (does not have fw option)The only thing I have not done is to buy a power source for the portable hd. Here are a few characteristics...
1.) The hard drive mounts but freezes when I try to open it (spinning beach ball thing) and I end up having to disconnect the portable. 2.) works fine on the PC winXP & Mac G4s at work 3.) works great on my brand new 12" ibook...
I am a little sad because the purpose was to be able to store & travel with shared info.
Any news, solutions, or "fixes" ?
P.S. My mini is still OS10.3.9
Beth

Dual G5 2.0 Power Mac (June 2004) referb - booting problem

Hi all - my dual G5 2.0 Power Mac (June 2004) decided to rev its fans and boot no more. When I push the power button in front, the white light comes on while pushing it, then goes off, yet I hear the fans starting, the hard drive spinning etc. The key board isn't getting power (the caps light doesn't go on) and after a few minutes the fans rev like a jet engine...starting slow then gaining speed. I can't open the DVD from the key board (have tried all usb ports). Have also looked through this discussion area and tried many of the solutions provided (reset the PMU, unplug, try different outlets etc.) Any help would be appreciated. I do have Applecare but they are closed for the night.
Thanks for you help
Dual G5 2.0 (June 2004) referb from Apple Mac OS X (10.4.6)

Your OS is not loading and the fans default into a speed up mode.
Power up and hold down the mouse button, the cd tray will spit. Insert Tiger/install disk and power boot holding c. (note: use a wired keyboard/mouse directly to the machine and nothing else for now)
In the Installer, select Disk Utility from the menu>Repair disk/permissions. note any errors you see.
If you can't access the drive, it might be dead. I hope you backed up files.
All you need to do is get a new drive and reinstall Tiger etc.
If you can get a 6 pin firewire 400 cable to each Mac and t boot the problem Mac. the hard drive should appear on the other which you can recover files.
If the OS is fried you can do a archive and install too.

USB Problem with iMac

I have a USB problem with a 2007 iMac.
It appears that 1 of the usb ports is faulty, when in OS X 10.6.2 I constantly get "because a usb device is drawing too much power" popup. Usually 3-5 popup eventually.
I used Boot Camp to boot into Windows 7 and Device Manager can see the ICH8 Family USB Universal Host Controller - 2832 as a problem. I can disable it without an problems.
The question is: Is there any way to either disable that pop-up warning in Os X or disable that specific port so I don't get the pop-ups.
I performed all updates and things like PRAM reset and SMC reset.
Its not under Apple Care if your wondering.
Thanks,
Message was edited by: DrWickman

So does that mean all the ports work properly, even after getting that message?
If you start up from your Mac OS X installation disc (a different Mac OS X system), do you still get this error message? You can do so by inserting the disc and restarting with the C key held down. When you get to the Installer screen, you can do things like run Disk Utility from the Utilities menu. Does that message still appear?
Also, you said you reset PRAM and SMC, but make sure you followed these procedures
http://support.apple.com/kb/HT1379
http://support.apple.com/kb/HT3964
Apple recently changed the procedure a bit. While going through it disconnect ALL cables. If you have been connecting the iMac to a crowded or old power strip, connect to directly to a wall outlet, at least during this test. Power it up initially with nothing connected, except the power cord. Note if that message appears. If it does not, connect just your keyboard/mouse, use it that way for a while, and note if that message appears. If all is well, connect the remaining peripheral devices.
I don't know of a way to disable that message without disabling all the USB ports.

USB problems since EFI firmware update 2.6

My MBA has been suffering USB problems since this update.
I have an IOGear USB 3 GUH374 hub. I connect my iPad mini and USB 3 disk to it.
Since the update, the iPad has stopped charging through the hub. Now, I can't find the power specs of the hub, so I don't know that it should work, but it was working fine. Now, the iPad says "not charging".
The USB disk has spontaneously disconnected a few times, with the system reporting that it was improperly disconnected. One time, the disk was corrupted.
This could be a coincidence, so I've contacted IOGear. But, I'm also having new, different, sleep problems with the MBA and Mountain Lion.
==Leonard

Sitongia
This is a user community, it is not Apple.
If you wish to thank Apple, here is the feedback link for iPad.
http://www.apple.com/feedback/ipad.html

After installing iPhone Configutilities in my Mac, Personal Hotspot using USB is not working! Please help, I am using 10.7 Lion OS

After installing iPhone Configutilities in my Mac, Personal Hotspot using USB is not working! Please help, I am using 10.7 Lion OS

Did you talk to your carrier?

Mac OS X moutainlion USB problems

Similar Messages

Maybe you are looking for