Intel GM956 performance regression in 11.10?

[Marius Gedminas]

On Fri, Jan 13, 2012 at 06:27:06PM +0200, Marius Gedminas wrote:
> Has anyone else noticed a considerable performance regression in Intel
> GM956 graphics after an upgrade from 11.04 to 11.10?
> 
> When I drag terminal windows around on my screen the position updates at
> what feels like ~6 fps. The compiz workspace sliding animation on
> Ctrl+Alt+Left/Right sometimes drops *all* the intermediate frames. I can
> sometimes see *tearing* when I'm scrolling text in less in a
> gnome-terminal!

A reboot fixes this and Compiz animations/application updates feel fast
again.

What could possibly cause a gradual slowdown of graphics?

Marius Gedminas
-- 
MCSE == Marginal Computer Software Enthusiast
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