Re: "[mi] EQ overflowing. The server is probably stuck in an infinite loop."
OK, my card seems to be broken. This is a 3 year old 8800 Ultra (ultraexpensive) which was not stressed by frequent gaming or similar uses.
I'm now getting the same artifacts and unresponsiveness in using nouveau and even in Windows. I can't say whether the xorg crashes (+ identical stack trace to ShiningArcanine) were caused by a broken card or the broken card caused by the errors. But the timing on this is strange and somehow left a bad aftertaste..
Again, my symptoms:
* Display artifacts, geometrical shapes of the screen replaced by purple pixels. These got worse as time went on.
* Immediately afterwards a lack of responsiveness from applications and keyboard
* Then what seems like almost a complete freeze, with just the mouse pointer responding to actions. Applications and keyboard lights do not respond.
* Stack trace as posted by ShiningArcanine
This seems to happen more frequently when running 3d games.
I'm a bit hesitant to get a replacement card in case that one breaks too..