linux-kernel - Re: regression: GM45 on Dell Latitude E6400 display from 1440x900 to 1024x768 somewhere between 2.6.38-git2 and -git7

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Message-Id: <1bdc18$jvuest@fmsmga002.fm.intel.com>
Date:	Thu, 24 Mar 2011 11:45:57 +0000
From:	Chris Wilson <chris@...is-wilson.co.uk>
To:	Alessandro Suardi <alessandro.suardi@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: regression: GM45 on Dell Latitude E6400 display from 1440x900 to 1024x768 somewhere between 2.6.38-git2 and -git7

On Thu, 24 Mar 2011 12:30:49 +0100, Alessandro Suardi <alessandro.suardi@...il.com> wrote:
> Fedora 14 x86_64
> 
> [   375.231] (II) intel(0): Integrated Graphics Chipset: Intel(R) GM45
> [   375.231] (--) intel(0): Chipset: "GM45"
> 
> startx yields:
> 
>  2.6.38-git2 and earlier: correct 1440x900 display
>  2.6.38-git3 through -git6: not tested due to kernel build errors
>  2.6.38-git7 through -git14: wrong 1024x768 display with black bands at sides
> 
> Once in wrong mode, xrandr --fb 1440x900 --output LVDS1 --mode 1440x900
>  helps return the screen to correct display, but:
> 
>  - background image is drawn incorrectly (like a 1440x900 correct one with a
>     superimposed 1024x768 starting from upper left corner)
>  - mplayer in full screen mode does not actually go full screen, but 1024x768
> 
> comparative Xorg logs and dmesg output for 2.6.38-git2 and -git14 available
>  upon request; lspci -v says:

There's not much we can say until we see those...
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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