Specific USB problem

Hi All,
I use a Plantronic's wireless USB headset for use with Skype.
I have been having reliability problems with it for a while. I have it plugged into a USB on my 23 inch Apple Cinema Display. I keep getting drop outs.
I spoke to Plantronics who suggested I plug it directly into my Mac Pro instead to see if that made it more reliable since the headset had certain power requirements that weren't always fulfilled via a USB hub.
My question... does that make sense...? Do Apple Cinema USB ports have lower power outage than direct connection to my Mac Pro...?
Advice Appreciated.

The display (but not the keyboard) USB ports should provide full power (500 ma).

Similar Messages

Shuffle USB Problem - Some Observations

I decided to start a new thread with some additional observations I have made regarding the Shuffle and USB problems. Some of this already appeared as a reply to the "ipod usb" thread. Anyway recapping from my previous post:
When plugged into the USB port of my machine, the front LEDs (above the control area) flash the following:
GREEN and ORANGE (YELLOW?) flash together for between 1/4 and 1/2 second. This is followed by the GREEN LED alone for about 1.5 seconds. 3 seconds of nothing, then it repeats. The battery condition LED on the back (below the ON/OFF switch blinks ORANGE for about 1/4 second every 4 seconds.
Plugging the Shuffle into another computer (a laptop), the Shuffle is recognized and the LEDs behave normally.
Now the weird thing is that the Shuffle had worked on the machine where it is now not recognized. In fact the iTunes 7.0.1 diagnostics show the serial number of the Shuffle as the last iPod connected. Also, the USB on the iTunes machine is a USB 1.0 and on the laptop is USB 2.0.
NEW OBSERVATIONS:
My 20GB Click Wheel iPod works fine under 7.0.1. The fact that it works leads me to believe the USB port and power are fine. If it the USB port can drive a hard disk iPod, it better be able to drive a Shuffle!
I loaded up the version of iTunes that came with the Shuffle on another Windows 2000 box I have. The Shuffle was recognized and did a RESTORE on it. Windows even recognized it. The version of Windows IS NOT as currently patched as the computer on which I have iTunes 7.0.1 installed.
I uninstalled iTunes 7.0.1 and installed version 6.0. Aside from 6.o not starting because some file got converted, Win2000 still did not recognize the Shuffle.
So here are my thoughts:
1) A recent Windows 2000 patch causes Shuffles to be ignored by the OS. There is a comment about a problem like this with XP, but I was not able to find anything Win2000 related. The machine I am having problems with is up to dat with regard to patches.
2) If V7.0.01 is the problem, even uninstalling it and reinstalling an old version of iTunes leaves some part of the driver or something that still causes problems.
3) The Phillips Pronto remote software I installed somehow causes a bad interaction with only the Shuffle. Remember, my click wheel iPod still works!
Right now I am leaning towards an issue specific to Windows2000 and the Shuffle. Maybe a conspiracy to get us all to buy Zunes?
If anyone has additional observations or suggestions on how to fix the problem, I (and a bunch of other people) would really like to hear from you.
Thanks!
Don

Okay, I got focused on the fact that other machines
would recognize my Shuffle, but not my main machine.
It dawned on me that the Windows Registry stores
information about USB devices whether or not they
are plugged in, so I snooped around and found the
entries for the iPod.
I did some searches and found a reference to this MS
KB article:
http://support.microsoft.com/kb/315539/en-us
Basically describes how to show the "hidden" (i.e.
removed USB) devices. Went into the USB section and
deleted the 2 entries I had for iPods (my Shuffle and
20GB click wheel).
Plugged my Shuffle in and BINGO! Windows recognized
the Shuffle and iTunes 7.0.1 recognized the Shuffle!
In fact, as I write this post, my poor little
Shuffle is having my jogging play list reinstalled
since it got wacked by the 'restore' on the other
machine.
Bottom line, it looks like I managed to solve my
green and orange LEDs of death problem!
Your mileage may vary!
Good luck!
Don
Yes, great, this is a fix for this problem. Thank you very much.
Athlon Windows XP

Bookendz USB problems

Having an intermittent USB problem with my Bookendz dock, where the USB devices attached through the dock a disappearing from the MacBook's awareness. I've called Bookendz and they say it's a known problem with Leopard and external USB hubs They offered no fix for the problem but did offer to take the dock back if I'd like. I would rather use the dock, but if I can't resolve this problem it looks like I'll being doing the plug/unplug routine a few times a week. Anyone know of any fixes for this?

Still having the same problem with the Bookendz dockand yes, I also have the problem with my standard external USB powered hub. According to Bookendz, its a Leopard-specific problem (Like I'm gonna go back to Tiger- yeah right) so it's no surprise it happens to other folks with any variety of USB hubs.
The problem with the dock, however, is that there's no passive "pass-through" for USBs so there's no way around the drive-dump-and-crash scenario. With the dock, I'm forced to plug the external drive into a tenuously-connected external hub (that being the dock). At least with a separate external hub, I can keep my external drive plugged directly into my MacBook, and use the 2nd USB receptacle for the hub for the mouse/keyboard.
So far, I haven't had any USB devices disappear while using the machine (while it's awake, in other words). Only when the computer wakes up from sleep mode does it "lose" the hub (and attached devices). A quick unplug-and-replug of the hub's AC adapter and voila! Everything's fine again.
So the answer seems to be to return the Bookendz dock and wait until Leopard 10.5.X or whenever this bug gets fixed. ;-(

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.

Mouse only works when plugged into a specific USB port

Hello. I'm using a HP optical mouse that connects via USB plugin.
HP PIN: 505062-001 Rev.A
Operating System: Windows 7 Home Premium SP1
It only has full functionality when plugged into a specific USB port on my desktop. I can't get it to work with any other ports or chained with a HUB plugged into the port it likes. All of my other USB devices work fine with those ports and my HUBs. The red light on the bottom lights up but the mouse pointer does not respond to movement and clicking the buttons does nothing either.
1) I'm confident, that it's not a problem with the desktop hardware
2) I'm confident, that it's not a problem with the mouse hardware
When the mouse is fully functional, it's displayed under Devices and Printers, in the Devices category as "USB OPTICAL MOUSE".
When connected with the other ports or through a HUB, it appears as TWO entries in the Devices category: "HID-compliant mouse" and - here's the suspicious part - "HID-compliant keyboard"
I suspect that something's up with the driver for the mouse. Any clues, as to which driver I need? Or, is the cause of the problem something else entirely?

Hello Tick_Noby,
Your mouse only works in certain usb ports.
Has the mouse ever worked in the ports?
You can go to device manager and uninstall the fake keyboard and the mouse and restart the computer.
It seems that the driver is not correct for the mouse.
Also reset BIOS defaults.
Turn off the computer.
As you turn it back on tap the F10 key. This will load BIOS setup utility.
Press F9 to load defaults.
Press F10 to save and exit.
When the computer boots back up, check to see if everything is working.
If it has not been to long since the problem started, you can run a system restore.
This will take the system back to when everything was working correctly without affecting your personal files.
Here is a link on how to do a restore.
Let me know how everything goes
Have a good day.

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

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?

My iPad2 went blank. Troubleshooter says driver software MTP USB problem, what do I need to do?

My iPad2 went blank. Troubleshooter says driver software MTP USB problem, what do I need to do?

iOS: Resolving update and restore alert messages
For error -50: See error 13 and 14:
Error 13 and 14: These errors are typically resolved by performing one or more of the steps listed below:
Perform USB isolation troubleshooting, including trying a different USB port directly on the computer. See the advanced steps below for USB troubleshooting.
Put a USB 2.0 hub between the device and the computer.
Try a different USB 30-pin dock-connector cable.
Eliminate third-party security software conflicts.
There may be third-party software installed that modifies your default packet size in Windows by inserting one or more TcpWindowSize entries into your registry. Your default packet size being set incorrectly can cause this error. Contact the manufacturer of the software that installed the packet-size modification for assistance. Or, follow this article by Microsoft: How to reset Internet Protocol (TCP/IP) to reset the packet size back to the default for Windows.
Connect your computer directly to your Internet source, bypassing any routers, hubs, or switches. You may need to restart your computer and modem to get online.
Try to restore from another known-good computer and network.

MS-6390: Return Of The USB Problem!

Almost a year ago I posted a thread regarding a USB problem in which after a few hours runtime, the USB ports stop working. Having reinstalled Windows, I followed the original thread to fix the problem again but this time, it hasn't work. The old thread for reference is; https://forum-en.msi.com/index.php?topic=49727.0
but I shall try and include everything important here so it shouldn't be needed.
Firstly the nature of the problem;
Any new device plugged into them is not recognisied and Windows advises that it is the device that is malfunctioning.
Restarting the computer will eliminate the problem, however upon rebooting, the computer tends to get stuck at what may be the memory count. If left for 10 minutes, the memory amount comes up and the computer boots normally. This is circumvented by temporarily (one second) removing power to the power supply by pulling the plug or flicking the switch at the back.
[It may or may not be relevant that the HDD activity indicator is lit for approximately 30 seconds of this 10 minute period]
Upon switching the computer on again, the computer boots up normally and the USB ports continue to function for another variable period of time.
This problem occurs if there are no devices plugged into the USB, any single device (printer, gamepad, mobile phone) or any combination.
It should also be noted that if the computer crashes due to any of many unrelated reasons after this problem has arisen, and I use the reset button to make it reboot, the 10 minute reboot problem occurs again but appears differently on screen in that it actually says 'memory check' or words to that effect with a space where the normally RAM amount goes, a '+' and another empty space where the memory reserved for onboard graphics normally goes (i.e. memory check: + )
I've tried uninstalling the drivers and reinstalling those downloaded from VIAs website for my chipset.
My USB ports are set not to power down to save power in device manager.
The multi-card reader (plugged directly into the motherboard) also stops functioning when the USB ports go down - power light stays on, activity light stops flashing (occasionally power light turns off). Unplugging it from the motherboard does not resolve the issue.
I want to resolve this issue so the computer is trouble-free when I give it my mum to learn from.
Comp. specs in signature. Thanks in advance.

I don't know how to dig deeper... Soon this computer will only be using a single 80 gig HD, and I'll remove the fan controller (it'll be mums computer). I'll then be able to try just using sp1a.
This PSU I'm using is reviewed here with a several others. (the model number is the same, but the one tested doesn't appear to be dual rail - they actually state the number slightly incorrectly, but it's correct in the picture of the label they show.
I think it performed quite well, being one of only two that were able to keep producing (just) over 1 v at 100% load, whilst most others just plumetted. A significant but probably not damaging drop to 4.87v on the 5v rail and again 3.26 on the 3.3v rail all at 100% load (which you're never supposed to due to the PSU anyway). It got a recommended award since apparently it doesn't have many features but I don't think I'm in need of any features it lacks.
Furthermore - at the back it has a control for fan speed. Currently set on Auto, it maintains the same fan speeds (audiability) as on Low - thus I conclude it has headroom to push itself if necessary (in which case the fans would spin faster).
Apart from someone who said they're "cheapo", I havn't yet found any negative comments regarding Jeantech PSUs.

Macbook Air 2011 USB Problem

Hi, I recently bought a Toshiba portable hard drive that uses usb 3.0. For some reason, my mid-2011 macbook air 13" is unable to connect to the drive with the USB3 to microUSB3 cable. However, the hard drive worked on a late 2010 macbook air 11", other macbooks and pcs using the usb3 cable. The Toshiba portable hard drive did work with my 2011 air with my friend's USB2 to microUSB2 cable so I decided to buy one on Amazon. Unfortunately, the cable that I bought from amazon did not work with my macbook air but it did work with my other pc.
My question is: Does my macbook air have a usb problem and should I go to apple store to get it fixed?
Thanks!

There have been more than a few threads on this subject of the USB 3.0 Toshiba Canvio problems. Here is an ongoing rather current discussion of the issue.

Having t510 usb problems

hello,
We having t510 thin client usb problems its doesn't come up as anothe drive.
Carl

Hi
Can you expand on what your asking . Does the USB have anything on it ?? I assume it's a flash stick ???
Checkurtech
****Click the White Kudos star to say thanks****
****Please mark Accept As Solution if it solves your problem****

L505D-LS5001 no audio / no usb problem

i been having problems with my audio and usb drive, allready try installing drivers and nothing..
the audio tells me no audio output installed.
and the usb and sd card slot wont work eider. runnning windows 7 32bit , audio driver is microsoft audio highdefiniton with the yellow (!)
when i try to install laptops drivers go to the best drivers allready install.
usb problem i really dont know whats the problem..Laptop still on warranty.
Any help please

I have run into this same issue; it seems to occur that in device manager, no USB host is even present. Audio just has a red "X" on it.
I've tried installing the drivers, updates.
I restored from the Restore discs from Toshiba (which just crash)
I've done an install from a straight WIn7 X64 disc (which works, but then Red "X")
I've tried changing memory, HDD..
I've tried bootable LInux, which also doesn't see a USB controller.
This is very annoying. This seems to have happened after someone flashed the 1.10 BIOS onto this (I have an L505D-LS5007)
Something here is very amiss, and a laptop with no USB, no Audio is almost worthless. It's as though the BIOS control for the southbridge is wrong. I've tried re-flashing with 1.10, no difference.. I'd love to be able to rollback to 1.00, but I can't even find it.

How to find COM port for a specific USB device

I want to automatically find the COM port for a specific USB device. I use the VISA find resource function but I can't get the manufacturer's ID. VISA says the device doesn't have this information. The find resource function does narrow my search (and often finds the port depending on what other usb devices are connected). In the case where it finds multiple possible ports, can I safely send a message to each port to determine if it is the correct device? I know it will work for my purposes but I don't know if I am asking for trouble by sending messages to unidentified devices. Any thoughts on how I can identify my device port will be appreciated. Thank you - Dave F

You can do it using WMI. I have C# code I am supposed to convert into LabVIEW foing something similar to what you want to do. In my case, I am testing a USB device and need to know which port on the hub is which COM port (the device creates a virtual COM port for communication). Using WMI, you can find the hardware path to the device and know that COM10 is USB hub Port 1 for example. Unfortunately, I cannot share the C# code.
You can download the WMI Code Creator tool from Microsoft, which should help you tremendously find the proper method of getting your info.
You basically want to look at all the W32_USB devices for the specific device you are looking for. Once you have that, you can look for the COM Port associated with it. I don't know when I will get to coding this up in LabVIEW, but will report back when I do, assuming you haven't found the solution by then.

K8T800 USB Problem

Hi,
First time poster!
I have a problem which I would be grateful for some advice on. Maybe the solution is for me to update the bios but thought I should check first.....
Basically when I connect my ipod to the front USB port and restart my machine, the computer will not get past the initial load screen (with the graphic on-screen). If I remove the USB plug then it continues to boot, but nothing happens unless I remove the plug!
Is this normal?? Please help!!
Thanks

Unfortunately u have the same problem i did. Although for me it was any usb device or even some PS/2 mice.
The solution is to spend 7 GBP on a PCI to USB card.
like this one (just an example, have a look around):
http://www.ebuyer.com/customer/products/index.html?rb=1650068478&action=c2hvd19wcm9kdWN0X292ZXJ2aWV3&product_uid=32620
that fixed all my USB problems, which i couldnt fix any other way, and damn i tried!
good luck

Garageband opens now -- but USB problem

Applemeisters-- I just posted a note about how my Garageband won't open. Googled and found the problem. You must have the correct date operating on your computer or it won't work. I live in the Chicago burbs and, as a result of having power out for several days, the date on my computer system was off by that number of days. Corected that and Garageband is live again.
Now, about the USB problem. Please help. An Ion turntable that works fine with the regular stereo console, But when I plug it directly into my G4 tower with an OS 10.2.8 system and record lps into the audacity software the sound sounds miserable on the speakers while recording and miserable after I transfer the recording into a MP3. Is Ion supposed to be a plug and play for Apple or does it just work for PCs? What's a guy to do? Help. Thanks.
Paul

This is only a guess, because I've not got HK USB speakers: But maybe the master volume in GB is up too high. Take it right down and then turn up your speakers, see if that does it.

Specific USB problem

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