Disabling modeset in grub appears to work. I had an error "[drm:rs400_gart_adjust_size] *ERROR* Forcing to 32M GART size (because of ASIC bug ?)" in dmesg, and cured this error by adding "radeon.modeset=0"" to GRUB_CMDLINE_LINUX_DEFAULT and then running sudo update-grub2, as per https://bugs.launchpad.net/ubuntu/+source/linux/+bug/562843 (Bug #562843).
This looks nothing like the Ubuntu 10.04 Release Notes "Working around bugs in the new kernel video architecture" (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/533784 and https://bugs.launchpad.net/ubuntu/+source/linux/+bug/541501), but may be related anyway. The option "nomodeset" may work for other hardware. Ubuntu Wiki had some other workarounds at https://wiki.ubuntu.com/X/Bugs/Lucidi8xxFreezes I have not had a freeze or failure to resume since disabling modeset in grub. -- resume from suspend does not work https://bugs.launchpad.net/bugs/568711 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
