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Bug#479870: xserver-xorg-video-ati: Frequent system lockups since upgrade

>  Do either of the following options help?
>  Option "AGPMode" "1"
>  Option "BusType" "PCI"
>  Also, this issue could be mesa or drm related.  what versions where
>  you running previously?
>  Alex

Sorry for the long wait, I managed to downgrade xserver-xorg-video-ati
from the old versions I had in /var/cache/apt/archives after a lot of
messing with dependencies, and I didn't want to upgrade again until I
got my hands on another hard drive and imaged my root partition.

Neither of those options helps. AGPMode "1" doesn't seem to have any
effect, and "BusType" "PCI" just disables acceleration, causing the
following in dmesg:

[drm] Setting GART location based on new memory map
[drm:radeon_do_init_cp] *ERROR* Cannot use PCI Express without GART in FB memory

Both of these tests were done in exa mode, since you didn't specify.
Let me know if I should use xaa.

I don't know what versions of mesa and drm I was running previously,
but I do know that that the following packages are the *only* ones I
downgraded (according to dpkg.log), and downgrading fixed my problem.
Upgrading these packages caused it again.

Thanks for your reply, and again, sorry for the delay!

~ Arren

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