Re: Fwd: 2.6.36-rc5 i915 regression

[Peter Clifton <pcjc2@cam.ac.uk>]

On Tue, 2010-10-26 at 02:57 +0200, Seblu wrote:
> I make an another video, which show suspend to ram issue with this
> lastest kernel and how it's perfectly functionnal with 2.6.35.7.
> 
> http://videobin.org/+2a5/2kp.ogg
> 
> can i do something more to help your  troubleshoot this issue?

If you have a working kernel version and a non working version (and some
time on your hands!), you could "git bisect" between the various
revisions to determine which commit introduced the breakage.

(NB: I'm not a driver developer here, just a keen user).

It took me a good long time bisecting a graphics regression when I had
it down to 80 changes. Since in that case I was sure it was a graphics
related fault - and had an idea which of the many driver source files
would be relevant, I was able to pass some extra parameters to git
bisect to narrow the search.

Others might disagree, but from your video I wouldn't be 100% sure that
I could restrict the search to the graphics driver only.

-- 
Peter Clifton

Electrical Engineering Division,
Engineering Department,
University of Cambridge,
9, JJ Thomson Avenue,
Cambridge
CB3 0FA

Tel: +44 (0)7729 980173 - (No signal in the lab!)
Tel: +44 (0)1223 748328 - (Shared lab phone, ask for me)