From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 41668] Screen locks up at random points when using a 3D
	compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)
Date: Tue, 11 Oct 2011 19:25:07 -0700 (PDT)
Message-ID: <20111012022507.EC42B130081@annarchy.freedesktop.org>
References: <bug-41668-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=41668

--- Comment #6 from dmotd <inaudible@simplesuperlativ.es> 2011-10-11 19:25:07 PDT ---
(In reply to comment #4)
> > `DISPLAY=:0 openbox --replace` results in:
> > 
> > "Invalid MIT-MAGIC-COOKIE-1 keyOpenbox-Message: Failed to open the display from
> > the DISPLAY environment variable."
> 
> This is because gdm3 uses a non-default X11 authentication cookie. I use
> something like
> 
> XAUTHORITY=/run/gdm3/$(sudo ls /run/gdm3|grep $(whoami))/database DISPLAY=:0
> [...]
> 
> to work around it.

i've since ditched a graphical login, i've had better success reinitiating X
with startx.. the last freeze i had i managed to initiate an openbox session
(---replace) on top of the failed gnome-shell (which i killed, and switched
'fallback mode' from the cmdline). the result was many windows were inactive
and frozen (ie. evolution, gnome-terminal, chromium), while a few others (gvim
was one, and empathy was another) remained active and usable. i could however
start new instances without issue.

> 
> > 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) i'll attach the output from after the
freeze and one from a fresh happy boot..

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