[Bug 57495] [945gm regression] GPU hangs on login to Unity

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=57495

--- Comment #34 from Kees Bakker <kees.bakker at xs4all.nl> ---
(In reply to comment #33)
> (In reply to comment #32)
> > kees at makkie:~$ glxgears 
> > Running synchronized to the vertical refresh.  The framerate should be
> > approximately the same as the monitor refresh rate.
> > 117 frames in 5.0 seconds = 23.358 FPS
> > 183 frames in 5.0 seconds = 36.554 FPS
> > XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
> >       after 1033 requests (1033 known processed) with 0 events remaining.
> > kees at makkie:~$ glxinfo |grep -i render
> > direct rendering: Yes
> > OpenGL renderer string: Mesa DRI Intel(R) 945GM x86/MMX/SSE2
> 
> That's abysmal level of performance. What size is the glxgears window and
> how large are the gears? What happens without unity?

The size of the window doesn't matter. Even if I fill the whole screen. The
funny thing it that it is really smooth if I keep moving the cursor (or even
the whole window), at 50 fps. But as soon as I leave the cursor or keyboard
untouched it becomes jerky.

This is with Gnome Shell. Unity got removed in one of my recent upgrades
because I am using xorg-edgers packages. And now unity can't be installed
because of missing dependencies.

I've tried "gnome classic (no effects)" and that gave the same glxgears
performance. (If that is what you wanted to know.)

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