linux-kernel - Re: is there a fix for ubuntu with intel GPU booting to blank screen?

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Message-ID: <alpine.DEB.2.00.1012311153190.3495@localhost6.localdomain6>
Date:	Fri, 31 Dec 2010 12:01:54 -0500 (EST)
From:	"Robert P. J. Day" <rpjday@...shcourse.ca>
To:	Maxim Levitsky <maximlevitsky@...il.com>
cc:	Anca Emanuel <anca.emanuel@...il.com>,
	Ubuntu kernel team mailing list 
	<kernel-team@...ts.ubuntu.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>
Subject: Re: is there a fix for ubuntu with intel GPU booting to blank
 screen?

On Fri, 31 Dec 2010, Maxim Levitsky wrote:

... snip related to i915 blank screen issues ...

> Since you know how to compile kernel, and even have a close working
> version, you really should just bisect the bug.
>
> Bisection is a built-in in the git binary search that allows you to
> find the first commit that introduced the bug.
>
> For example, quick google gives,
> http://www.kernel.org/pub/software/scm/git-core/docs/v1.0.13/howto/isolate-bugs-with-bisect.txt

  oh, i know how to do bisection but, to be frank, i just don't have
the time.  i'm under a brutal deadline for some billable work and,
even if i had the time, i suspect that when i eventually tracked down
the commit, i probably wouldn't really appreciate what i was looking
at, anyway.

  i've done some searching on the issue and, among other pages, i've
come up with this one:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/683775

so i downloaded the kernel mentioned there and tested that, but no
luck.  mostly, i understand that there top men -- *top* *men* --
working on this :-) who know far more about the graphics subsystem
than i do so i'm just going to stay out of their way, but i'm willing
to test any proposed solutions if they come up.  my biggest worry is
that, given that we're already at -rc8, will this issue be fixed
before the next official release?

rday

-- 

========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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