linux-kernel - Re: i915: wrong framebuffer size in 2.6.36-rc3

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <1283175989.11293.19.camel@localhost.localdomain>
Date:	Mon, 30 Aug 2010 15:46:29 +0200
From:	Ivan Bulatovic <combuster@....com>
To:	Pekka Enberg <penberg@...nel.org>
Cc:	Sven Joachim <svenjoac@....de>, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	Chris Wilson <chris@...is-wilson.co.uk>,
	Eric Anholt <eric@...olt.net>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: i915: wrong framebuffer size in 2.6.36-rc3

On Mon, 2010-08-30 at 12:57 +0300, Pekka Enberg wrote: 
> On Mon, Aug 30, 2010 at 12:36 PM, Sven Joachim <svenjoac@....de> wrote:
> > On my laptop which has a 1280x800 display, only the upper left 848x480
> > pixels are used on the console in 2.6.36-rc3.  The resolution is
> > correct, but /sys/class/graphics/fb0/modes looks like this:
> >
> > U:848x480p-0
> >
> > This is a regression from 2.6.35.  The graphics card according to lspci:
> >
> > 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
> > 943/940GML Express Integrated Graphics Controller (rev 03)
> 
> Yeah, you're not alone on this:
> 
> http://lkml.org/lkml/2010/8/23/452
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@...r.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/


If that's the only problem you have then revert this commit:


commit
9559fcdbff4f93d29af04478bbc48294519424f5


> drm/i915: fix vblank wait test condition
> 
> When converting this to the new wait_for macro I inverted the wait
> condition, which causes all sorts of problems.  So correct it to fix
> several failures caused by the bad wait (flickering, bad output
> detection, tearing, etc.).
> 
> Reviewed-by: Chris Wilson <chris@...is-wilson.co.uk>
> Tested-by: Sitsofe Wheeler <sitsofe@...oo.com>
> Signed-off-by: Jesse Barnes <jbarnes@...tuousgeek.org>
> Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>

https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9559fcdbff4f93d29af04478bbc48294519424f5


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/