Radeon Acceleration Disabled

karu.pruun karu.pruun at gmail.com
Mon Jul 5 05:45:32 PDT 2021

It seems not all radeon cards work with GPU acceleration, for instance
I get the following w/o the commit you mention

kernel: error: [drm:pid223:r600_dma_ring_test] *ERROR* radeon: ring 3
test failed (0xCAFEDEAD)
kernel: drm0: error: disabling GPU acceleration

for both Radeon R7 370 and R7 360. I am not sure why the commit was
made, perhaps the cards that generally worked had occasional glitches,
and maybe it's still the case.




On Sun, Jul 4, 2021 at 8:30 AM Bill Sorenson <instructionset at gmail.com> wrote:
> I recently tested a Radeon R5 240 (Oland) on Dragonfly 6.0 and noticed
> acceleration was disabled. It appears it was disabled with commit
> e8de9e9.
> I rebuilt my kernel with acceleration re-enabled and it seems to be
> working fine. I'm using Xfce 4.16, Chrome 91 etc.
> Is it possible the underlying issue has been fixed incidentally? Is
> there anything specific I should test, or another GPU I could try that
> is known to exhibit issues?
> -Bill

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