[Bug 568711] Re: resume from suspend does not work

[Stuart]

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
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