https://bugs.freedesktop.org/show_bug.cgi?id=98146 --- Comment #5 from Darek Deoniziak --- "Also are you using DRI2 or DRI3?" Not sure how to check it. The `cat /var/log/Xorg.0.log | grep -i DRI3` command gives me: `[ 40491.158] (==) RADEON(G0): DRI3 enabled` so looks like it is only enabled, but not probably not used, when I look for DRI2 the outpout looks like this: http://pastebin.com/Nevad1GD Also in xorg.conf.d I have file `10-amdgpu.conf` with content: Section "OutputClass" Identifier "AMDgpu" MatchDriver "amdgpu" Driver "amdgpu" EndSection but in `10-monitor.conf` I have setup at the end of file (which works fine, except for issues I've mention earlier): ... Section "Device" Identifier "Device0" Driver "intel" EndSection Section "Device" Identifier "Device1" Driver "radeon" EndSection Not sure what's the difference between radeon and amdgpu driver in this case, can 10-amdgpu.conf be related to amdgpu-pro? I've tried amdgpu-pro few weeks ago but that didn't work out at all so I decided to stick with opensource one. Asking because I would like to try to enable DRI3 and recently it got kind of harder to understand what drivers for radeon are in use (recently I think it was only mesa and fglrx). To use DRI3 should file look like `20-radeon.conf` as filename and inside: Section "Device" Identifier "Radeon" Driver "radeon" Option "SwapBufferWait" "0" Option "DRI" "3" EndSection -- You are receiving this mail because: You are the assignee for the bug.