Comment # 31
on bug 84627
from Michel Dänzer
(In reply to Zbigniew Luszpinski from comment #30) > Just apply only one of these solutions. I prefer to add my GPU to exclusion > list "drm/radeon: Ignore RADEON_GEM_GTT_WC on Kabini" patch instead of > patching mesa. While that patch works around the problem, it doesn't make much sense conceptually: Since everything is working fine with 64-bit kernels, there doesn't seem to be anything wrong with any particular GPUs. Also, disabling write-combining decreases performance. For those reasons, until someone figures out the root cause of this problem, IMHO the preferred workaround is to run a 64-bit kernel. Any particular reason why you can't do that?
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