Created attachment 101236 [details]
Xorg crash log of the system.
We have events pile up in the queue when the card becomes unresponsive. The
only place I've seen this happen besides one time in Counter Strike Source, are
youtube in Chromium running HTML5 video. More so when switching tabs to or from
the video when a lot of pixels on the screen changing. It does not have to be
rendering to crash, though, it happens off screen too. Otherwise no other
software triggers this bug nearly as consistently. I am attaching the XOrg
failure log. I'm on Mesa and firmware from the Oibaf PPA. 3.16-rc1 kernel, and
this is in every kernel for a while as far as I remember. From the log, you can
see the errors and how it says the queue overflows and the device is waiting
for something to happen, it more than likely is DRM related. The screen usually
goes out and stops rendering on the HDMI channel that I use, but sometimes
comes back with very badly botched video if it does, both cases result in a
100% unresponsive system, besides audio will usually continue to play until the
end of the video.
Hardware is an R9 270X Radeon card. I only use HDMI video output. I am using
the mc2 files even though they are not officially with any firmware package, I
added them when using the 3.15+ kernels. Any more info or anything else needed
just ask, I'll supply it.