https://bugs.freedesktop.org/show_bug.cgi?id=27501

--- Comment #43 from thomas <gurutonic-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
(In reply to Pierre Moreau from comment #42)
> Created attachment 107262 [details] [review]
> Fix acceleration on 9400M v2
> 
> Here is an updated version of the patch.
> 
> Thomas,
> Do you still get screen corruption with it? (I can't reliably reproduce the
> screen corruption unfortunately.)
> GDM seems to work fine on my laptop with only 9400M having acceleration
> enabled. I'll try with 9600M GT acceleration enabled too. :/

Hi Pierre,

I've applied your v2 patch and the results are similar. The 9400M works
correctly. GDM loads fine, but it won't start a gnome-shell session. However,
SLIM works correctly and is able to load both gnome-shell and Awesome. I'm
writing this from gnome-shell now, and performance is good. I haven't had any
screen corruption with the 9400M. I'll use this configuration for now and
report any issues I encounter.

The 9600M GT (acceleration disabled) still has corruption in VT as before, but
this time the screen blanks when X is loaded.

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