I have the same problem on my Thinkpad T41 with RV250 on Maverick. This system has been upgraded twice from 9.10.
$ lspci | egrep -i rv 01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV250 [Mobility FireGL 9000] (rev 02) Although hibernate/resume works fine, suspend/resume does not. Plus, there's some video corruption of the ubuntu logo during bootup and shutdown. So, I thought I'd try turning off kernel mode setting (KMS). I'm running grub2. In /etc/default/grub, I replaced this line: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" with this line: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset" Now, resuming from suspend seems to work perfectly. I'm not sure whether there's a performance hit by not using KMS. Is nomodeset the default when installing Maverick on older AGP radeon systems like these? Should it be in Natty? Will suspend/resume under KMS ever work on older AGP radeon systems? ** Package changed: linux (Ubuntu) => xserver-xorg-video-ati (Ubuntu) ** Tags added: radeon regression-release resume suspend ** Tags removed: apport-bug graphics i386 lucid needs-upstream-testing regression-potential -- resume broken on ATI radeon RV250 https://bugs.launchpad.net/bugs/557224 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
