Bug#597993: xserver-xorg-video-intel: [865GM] shadowfb makes moving windows way too slow

[Dmitry Semyonov <linulin@gmail.com>]

On Fri, Oct 22, 2010 at 01:18, Julien Cristau wrote:
> On Fri, Oct 22, 2010 at 01:07:03 +0400, Dmitry Semyonov wrote:

>> (Note however that
>> 'man intel' suggests "shadow" option is disabled by default.)
>>
> We're turning it on for i8xx in the debian package to avoid hangs.  I
> should fix the manpage to match.
>
> Maybe we could turn it off by default on 865, and keep it on for 830,
> 845 and 855, since 865 seems more stable...

I can only confirm this for 865 chipset. Once I fixed unrelated CPU
overheating issue and added 'nolapic' kernel option to work-around
buggy BIOS, my PC became pretty stable. No hangs or crashes between
scheduled kernel upgrades. And I'm running two X Servers in parallel.

-- 
...Bye..Dmitry.