Intel GM956 performance regression in 11.10?

[Ioannis Vranos]

On Mon, Jan 16, 2012 at 5:16 PM, Marius Gedminas <marius at pov.lt> wrote:
> 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?

It may be a graphics card overheating problem. Is there available the
GPU temperature?

It may also be a driver bug. After checking the GPU temperature, try
using the latest driver.


-- 
Ioannis Vranos

http://cppsoftware.binhoster.com