[Bug 39035] OpenGL compositing window managers doesn't work on ATI Radon Xpress 200M (and probably other r300 cards) on xserver 1.10

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=39035

--- Comment #11 from Alex Deucher <agd5f at yahoo.com> 2011-07-08 06:42:45 PDT ---
Also make sure you are getting interrupts.  'cat /proc/interrupts' and make
sure the numbers on the radeon line are increasing.  If not, you may try
booting with:
pci=nomsi or irqpoll on your kernel command line.

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