Created attachment 113743 [details] /sys/class/drm/card0/error output When used Steam it's only crashed with messages in dmesg. When used Steam and Chromium Xorg fully freezed.
Created attachment 113744 [details] dmesg
Sorry no one ever investigated your bug. The good news is that everything seems to be working on kernel 4.9.5 and mesa-13.0.3. Please reopen if you can still reproduce with Mesa 17.0.
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