[Bug 37679] [RS690M] No 3d acceleration in Radeon X1200 with the new Gallium r300 / 3d drivers

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=37679

--- Comment #59 from Alex Deucher <agd5f at yahoo.com> 2011-09-11 23:02:02 PDT ---
(In reply to comment #58)
> I don't think that is the Bios. I have 3 OS on 3 partitions: Windows XP,
> Ubuntu 10.04 LTS and Ubuntu 11.04. 3d acc works well on Windows and Ubuntu
> 10.04. It doesn't work in Ubuntu 11.04.

As I mentioned previously, it depends if 10.04 used KMS or UMS.  UMS did not
make as extensive use of interrupts as KMS does.  If 10.04 used KMS, then
please bisect the kernel to see what commit caused the problem.

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