Created attachment 103500 [details] dmesg with working acceleration (Marek's patches): WoW GPU reset Yay, with your seven patches, Marek, it works with the built-in glamor-1.0.0 ! Thanks a lot ! The following patches were applied: [Mesa-dev] [PATCH 1/2] r600g, radeonsi: add debug flags which disable tiling http://lists.freedesktop.org/archives/mesa-dev/2014-July/064127.html [Mesa-dev] [PATCH 2/2] radeonsi: fix CMASK and HTILE calculations for Hawaii http://lists.freedesktop.org/archives/mesa-dev/2014-July/064128.html [Mesa-dev] [PATCH 1/3] gallium/util: add a helper for calculating primitive count from vertex count http://lists.freedesktop.org/archives/mesa-dev/2014-July/064129.html [Mesa-dev] [PATCH 2/3] radeonsi: fix a hang with instancing on Hawaii http://lists.freedesktop.org/archives/mesa-dev/2014-July/064130.html [Mesa-dev] [PATCH 3/3] radeonsi: fix a hang with streamout on Hawaii http://lists.freedesktop.org/archives/mesa-dev/2014-July/064131.html [Mesa-dev] [PATCH] winsys/radeon: fix vram_size overflow with Hawaii http://lists.freedesktop.org/archives/mesa-dev/2014-July/064137.html [Mesa-dev] [PATCH] radeonsi: fix occlusion queries on Hawaii http://lists.freedesktop.org/archives/mesa-dev/2014-July/064138.html With those the transparency and flickery effects I described in comment #91 are gone ! World of Warcraft still crashes when entering the world, but not fatally anymore (there is a GPU reset and black screens for a while, but it recovers and only the game crashes). I attached the dmesg of the crash, Xorg.0.log doesn't show anything. I'm not sure if the GPU faults / VM faults visible in the log are related to the game, but they probably occured while I logged in and selected a character.