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.
\nThe 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.)<\/p>\n
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.<\/p>\n
9.04: Edit the \/boot\/grub\/menu.lst file, and look for the 9.10: Edit the \/etc\/grub.d\/10_linux file to add a line such as: 10.04: Edit the \/etc\/defaults\/grub file and change 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…<\/p>\n","protected":false},"excerpt":{"rendered":" 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 … Continue reading defoptions=<\/code> line. Add nomodeset to the end. Run sudo update-grub<\/code> afterwards to save your changes.<\/p>\n
\nGRUB_CMDLINE_EXTRA = \"$GRUB_CMDLINE_EXTRA nomodeset\"<\/code>
\nor just add “nomodeset” to the end of a previous GRUB_CMDLINE_EXTRA entry. After this, run sudo update-grub<\/code>.<\/p>\nGRUB_CMDLINE_LINUX=\"\"<\/code> to
\nGRUB_CMDLINE_LINUX=\"nomodeset\"<\/code>
\n (You may have to run sudo update-grub again, or it may be taken care of for you)<\/p>\n