linux-kernel - [BUG] i915 crashes X Server Constantly on Linux-3.1-rc4 to .rc6

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Date:	Mon, 19 Sep 2011 12:48:37 +0300
From:	Tarkan Erimer <tarkan.erimer@...ecure.com>
To:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [BUG] i915 crashes X Server Constantly on Linux-3.1-rc4 to .rc6

Hi,

I'm having constant X crashes (Almost every 30 mins.) on Intel Graphics. 
Below is the error message after X crashes :

[  113.264775] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[  113.265289] [drm] Changing LVDS panel from (-hsync, -vsync) to 
(+hsync, -vsync)
[  114.141640] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 4955.770011] [drm:intel_disable_transcoder] *ERROR* failed to disable 
transcoder
[ 4955.777420] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 4955.938453] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 5255.360508] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 5255.527867] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 5744.182746] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 5744.349049] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 8536.532605] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 8536.533128] [drm] Changing LVDS panel from (+hsync, -vsync) to 
(-hsync, -vsync)
[ 8536.835206] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 8605.034788] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 8605.035302] [drm] Changing LVDS panel from (-hsync, -vsync) to 
(+hsync, -vsync)
[ 8606.110388] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 8869.586751] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 8869.587264] [drm] Changing LVDS panel from (+hsync, -vsync) to 
(-hsync, -vsync)
[ 8869.906322] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 8950.401958] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
[ 8950.402472] [drm] Changing LVDS panel from (-hsync, -vsync) to 
(+hsync, -vsync)
[ 8951.066084] [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH


Here is VGA info from lspci :

linux-ou2v:~ # lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core 
Processor Family Integrated Graphics Controller (rev 09)

And it's Xserver v1.11 and Intel Driver 2.16 with 
Kernel-3.1.0-rc6-2-desktop (opensuse). Also, this behavior happens from 
Linux-3.1-rc4 to rc6. At least these are the versions that I tried as 
3.1. Linux-3.0.x runs fine with same configuration.





-- 
Tarkan Erimer
IT Service Deployment / 3rd Level Support / Snr. Linux Engineer

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