[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=41668

--- Comment #10 from Michel Dänzer <michel at daenzer.net> 2011-10-12 03:07:04 PDT ---
(In reply to comment #6)
> > > running glxgears just shows an empty black box.. all other glx demos are the
> > > same empty boxes.. 
> > 
> > Do they work with the environment variable vblank_mode=0? If yes, does the
> > number for radeon increase in /proc/interrupts once the problem occurs?
> 
> setting vblank_mode=0 works and displays an output.. but not much change in
> /proc/interrupts (irq 46 for radeon)

Not much change for the radeon number, or none at all? If the latter,
apparently the IRQ for the radeon card stops working for some reason, which
would explain the core symptoms of the freeze.

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