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. Best Peeter -- On Sun, Jul 4, 2021 at 8:30 AM Bill Sorenson <instruction...@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