IBM Think pad X31 Radeon M6 – Suspend Screen Fix

My Thinkpad X31 laptop with a Radeon M6 graphics chip had a problem with ACPI Suspend/Resume. About every five resumes, the graphics card would get messed up, making the screen unusable.
The computer would suspend/resume fine otherwise, but I’d be forced to reboot just to get X working again. (Just shutting down X and re-starting it wasn’t enough.)

The easy solution is to pass a “nomodeset” option to the kernal upon boot, but to do this on different versions of Ubuntu you need to do modify files in different places.

9.04: Edit the /boot/grub/menu.lst file, and look for the defoptions= line. Add nomodeset to the end. Run sudo update-grub afterwards to save your changes.

9.10: Edit the /etc/grub.d/10_linux file to add a line such as:
or just add “nomodeset” to the end of a previous GRUB_CMDLINE_EXTRA entry. After this, run sudo update-grub.

10.04: Edit the /etc/defaults/grub file and change GRUB_CMDLINE_LINUX="" to
(You may have to run sudo update-grub again, or it may be taken care of for you)

Commentary: I find it funny that in each of the last three version’s of UBUNTU the name and location of the grub configuration file has changed…

2 thoughts on “IBM Think pad X31 Radeon M6 – Suspend Screen Fix

  1. Let’s add to the confusion and say that in ubuntu 10.04 file/etc/defaults/grub nor /etc/default/grub exists. But I need to set exactly an env variable that would be in that file to be able to set up a headless ubuntu 10.04 server…

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