linux-kernel - [i915] 2.6.37-rc1 G33 regression : no DVI output

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Message-ID: <AANLkTinEbBirwkREAVaaB4gH0w44tem0ik9nPU5-6aNJ@mail.gmail.com>
Date:	Sun, 21 Nov 2010 12:20:01 +0100
From:	Vincent Vanackere <vincent.vanackere@...il.com>
To:	Chris Wilson <chris@...is-wilson.co.uk>
Cc:	linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: [i915] 2.6.37-rc1 G33 regression : no DVI output

Hi,

 I'm trying to track down a regression occuring in recent kernel : I
get the DVI output of my intel G33 chipset through a Sapphire ADD2
DVI-D SDVO adaptor card and it was working fine until
kernel 2.6.37-rc1 :
- all more recent kernels only give a black screen
- I can log through ssh and no oops nor anything suspicious is in the log
- I get an output if I uses the VGA builtin port.

I did a git bisect to track down the problem but unfortunately if got
stuck at commit 890f3359f7b84d7015104360d647ccac5f515542 that causes
an oops and doesn't allow me do do more finegrained bisection because
so far all later commits show either this oops or a black screen.
What can I do to help solve this problem ? Attached is my current git
bisect log.

Best regards,

Vincent Vanackère

View attachment "g33-regression-bisect.log" of type "text/x-log" (2882 bytes)