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Thread: HOWTO: USB stops working

  1. #1
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    HOWTO: USB stops working

    One topic that crops up from time to time in these forums is what to do if devices connected by USB stop working when the computer has been turned on for a while, but come right when the computer is rebooted.

    The following solotuion is what I used when my USB mouse and USB keyboard worked fine at startup but stopped working after a while. I have successfully used it on a Toshiba A100 laptop running Ubuntu 7.04, a.k.a. "Feisty".

    Disclaimer:
    The success (or otherwise) of the following solution will depend on your hardware and possibly which version of *buntu you are using. For example, starting from version 9.10, Ubuntu uses grub2, which does not use menu.lst

    Feel free to add your feedback to this thread and alternative solutions.



    1. From a terminal, type
      Code:
      gksudo gedit /boot/grub/menu.lst
      You will be asked for your password - don't worry if your password doesn't show, this is normal. Just type in your password as usual, and it will be accepted.
    2. When the editor opens, scroll down to the line which reads
      # defoptions=quiet splash
      and change it to read
      Code:
      # defoptions=quiet splash acpi=force irqpoll
    3. Save the file, exit the editor
    4. From the terminal, type in
      Code:
      sudo update-grub
    5. Restart your computer.
    Last edited by lisati; March 15th, 2010 at 07:06 AM. Reason: Allow for grub2
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  2. #2
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    Re: HOWTO: USB stops working

    this probley should go in tutorial section of the forums. Cool guide thoe.

  3. #3
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    Jul 2007
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    Angry Re: HOWTO: USB stops working

    I have better problem. When I work for a moment, usb mouse hangs. But everything still work's ok. When I try to unplug it and plug it in back, I only have message in dmesg about unplugging mouse (nothing else, no errors). When I plug it back, it doesn't have power. I tried plugging other mouse in other usb ports, but it looks like after this first unplug no mouse will get power from usb (they only flash for very short moment and then nothing, also nothing new in dmesg). All this time other usb devices (keyboard and bluetooth) work ok. I tried noapi, acpi=force, irqpoll, pci=nomsi and all_generic_ide in all combinations, but to no avail. It started today, yesterday computer was working for the first time with new motherboard (and graphics) without any problems for full day. I attached dmesg, lsmod and lsusb. In dmesg I cut some lines of errors from sde disk, "these are not errors you are looking for", this is just second disk of my raid0 array acting funny, it still works ok). Does anybody have any ideas I could try?
    Attached Files Attached Files

  4. #4
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    Re: HOWTO: USB stops working

    Solved. It looks like AMD Cool'n'Quiet has issues with cpu frequency changing, which may corrupt usb devices. Disabling it solved problem (it started when I disabled boinc for a moment, less cpu utilisation - mobo lowered frequency). Motherboard asus m3m-hd/hdmi with nforce 750a chipset.

  5. #5
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    Re: HOWTO: USB stops working

    My USB Mouse also freezes in the screen.

    everything works except the pointer.

    I also have the IO APIC bug problem i supose that must be a relation between both problems.

    My motherboard is an asus p5nsli

    please someone can help i really need linux to work in the university...

    please give me ideas.

    thanks

  6. #6
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    Re: HOWTO: USB stops working

    I typed it in the terminal but all I got was a blank (brand new document).
    Any solution?

  7. #7
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    Sep 2008
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    23

    Re: HOWTO: USB stops working

    yeah followed the steps, really easy thanks.
    thought id solved it until a second ago when the keyboard and mouse froze again!

    i dont think hard restarting is doing my computer any good. this is bloody annoying!

  8. #8
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    Dec 2007
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    Re: HOWTO: USB stops working

    Quote Originally Posted by lisati View Post
    Code:
    gksudo gedit /boot/grub.menu.lst
    I know that this is an old thread, but shouldn't this read:

    Code:
    gksudo gedit /boot/grub/menu.lst
    with a '/' between grub and menu instead of a '.' ?

  9. #9
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    Re: HOWTO: USB stops working

    Quote Originally Posted by rebeltaz View Post
    I know that this is an old thread, but shouldn't this read:

    Code:
    gksudo gedit /boot/grub/menu.lst
    with a '/' between grub and menu instead of a '.' ?
    Well spotted, fixed.

    N.B. Won't work with grub2 as installed with 9.10, which uses a different format for its options
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  10. #10
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    Re: HOWTO: USB stops working

    Quote Originally Posted by lisati View Post
    Well spotted, fixed.

    N.B. Won't work with grub2 as installed with 9.10, which uses a different format for its options


    So how do you do you do this in grub2?

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