linux-kernel - Re: [BUG] i915 boot got black screen with 2.6.37-rc5+

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Date:	Sat, 18 Dec 2010 15:55:22 -0500
From:	Woody Suwalski <terraluna977@...il.com>
To:	Chris Wilson <chris@...is-wilson.co.uk>
CC:	Hui Zhu <teawater@...il.com>, linux-kernel@...r.kernel.org,
	keithp@...thp.com, ak@...ux.intel.com, gregkh@...e.de,
	stable@...nel.org, Andi Kleen <andi@...stfloor.org>,
	maciej.rutecki@...il.com
Subject: Re: [BUG] i915 boot got black screen with 2.6.37-rc5+

Chris Wilson wrote:
> Which chipset and what connectors? Judging by the offending commits, my
> guess is an Arrandale with eDP, in which case
> https://bugs.freedesktop.org/show_bug.cgi?id=31988 will be of interest.
> -Chris
>
>    
Chris, after seeing this message I have tested -rc6 on G33 as well and 
can confirm that it is broken.
I can see only "unpacking" message - very very brief - and then 
absolutely black screen.

I have prepared a custom initrd to ddump the dmesg to a hard disk and 
here are results - "No connectors reported connected with modes".

I attach a run with -rc5 (good) and -rc6 (bad) dmesg dump...

Would it give you enough to work on?

Thanks, Woody


View attachment "i915_g33_2.6.37-rc6.txt" of type "text/plain" (13167 bytes)