How to fix USB stops working problem in Ubuntu

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This tutorial will explain how to fix USB stops working problem in Ubuntu

Note: The success (or otherwise) of the following solution will depend on your hardware and possibly which version of *buntu you are using. Feel free to add your feedback to this thread and alternative solutions

Open a terminal type

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.

When the editor opens, scroll down to the line which reads

# defoptions=quiet splash

and change it to read

# defoptions=quiet splash acpi=force irqpoll

Save the file, exit the editor

Now you need to update the grub using the following command

sudo update-grub

Finally Restart your computer.

For Grub2 Users (Ubuntu Karmic) follow this procedure

gksudo gedit /etc/default/grub

Find the line


and place the boot uptions there, like

GRUB_CMDLINE_LINUX=”acpi=force irqpoll”

Save and exit the file

After that, update the bootloader with:

sudo update-grub

Thanks to our reader laryllan


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37 Responses

  1. Avi says:

    Thanks a lot! Works for me. Ubuntu 14.04

  2. gustavo says:

    i am using ubuntu 12.04 and it solved my problem as well!

    tks vm!

  3. Charles says:

    how are you supposed to do this if your keyboard and mouse are usb and are not working!!

  4. NaturalCauses says:

    When I run gksudo gedit /boot/grub/menu.lst it asks me to enter my password. After I enter my password it goes into the text editor and opens a page called menu.lst, but nothing shows.
    Please help me

  5. luke says:

    The editor doesn’t open after entering my password…

  6. kevin says:

    I type

    gksudo gedit /boot/grub/menu.lst

    then a blank loader comes up i followed all the instructions after that but still can not edit the first document that loads because it is blank.

  7. Jason says:

    Check that you have the path to the file correct.
    Did you forget the leading “/”, or are you trying to use an editor that’s not installed?
    If the editor opens but the document is blank you are not editing a file, but you are creating a new document. Check the path and filename to make sure you are pointing to the file you intend.
    Some distros will have their grub config in a different location, such as /etc/default/grub.

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