[Intel-gfx] [ANNOUNCE] xf86-video-intel 2.4.0

[Julien Cristau]

On Fri, Jul 25, 2008 at 21:48:20 +0200, Eric Piel wrote:

> I have a 965GM, and since the update to 2.4.0, XRRGetScreenResources()  
> leads to flickering also on my LVDS (and with the current gtk+  
> "enhancement" that means a lot...). With previous versions (latest used  
> being 2.3.2) the VGA screen turned on and off, but the LVDS screen was  
> not affected. Now I get a subliminal shift of my desktop for a few  
> tenths of a second.
>
I see this too on my 945GM.  Bisect gives me:

37848925c4557385f154443ffbb917a8203506f8 is first bad commit
commit 37848925c4557385f154443ffbb917a8203506f8
Author: Jesse Barnes <jbarnes at nietzche.virtuousgeek.org>
Date:   Thu Jul 17 14:41:51 2008 -0700

    Choose a split for DSPARB based on the configured modes for both planes.
    
    Previously, we were attempting to give both planes equal space in the FIFO
    to be fair.  However, larger modes require more fifo space, so split it based
    on the relative HDisplay of the modes.  This should resolve some fifo underrun
    issues with differently-sized displays, or single large ones.
    
    Bug #16169.
    (cherry picked from commit b8ca1c747a679c931267363639fc0bc690cae2d6)

Indeed, reverting that patch on top of 2.4.0 no longer shows the issue.

Cheers,
Julien