linux-kernel - Re: [regression?] Sometime (often) X come out blank (black screen) on cold boot

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Date:	Thu, 12 Jun 2008 13:58:00 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Justin Madru <jdm64@...ab.com>
Cc:	Romano Giannetti <romanol@...omillas.es>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	lkml <linux-kernel@...r.kernel.org>,
	Saïvann Carignan <oxmosys@...il.com>
Subject: Re: [regression?] Sometime (often) X come out blank (black screen) on cold boot - Intel chipset

On Tuesday, June 10, 2008 9:33 pm Justin Madru wrote:
> Jesse,
>     It seems the problem might be related to usplash. In each reported
> case Ubuntu and usplash were used, and disabling usplash (at least for
> me) seems to fix the problem. Could there be some timing feature that
> usplash uses that isn't guaranteed/changed with some optimizations of
> CFS (or HR-timers) that went into 2.6.25? I've cc'ed Saïvann Carignan,
> who seems to be the most active contributer to usplash.

Yeah, usplash really seems to affect things to make the bug more visible, but 
I still suspect a timing bug in xf86-video-intel...  Unfortunately those are 
hard to find & debug, but we're working on some related stuff, so hopefully 
we'll find & fix it soon.

Thanks,
Jesse
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