linux-kernel - Re: [Bug #12806] i915 broken STR

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Message-Id: <200903101456.48444.rjw@sisk.pl>
Date:	Tue, 10 Mar 2009 14:56:47 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Eric Anholt <eric@...olt.net>
Cc:	Harvey Harrison <harvey.harrison@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Dave Airlie <airlied@...hat.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: [Bug #12806] i915 broken STR

On Tuesday 10 March 2009, Eric Anholt wrote:
> On Sat, 2009-03-07 at 22:28 +0100, Rafael J. Wysocki wrote:
> > On Saturday 07 March 2009, Harvey Harrison wrote:
> > > On Tue, 2009-03-03 at 20:25 +0100, Rafael J. Wysocki wrote:
> > > > This message has been generated automatically as a part of a report
> > > > of recent regressions.
> > > > 
> > > > The following bug entry is on the current list of known regressions
> > > > from 2.6.28.  Please verify if it still should be listed and let me know
> > > > (either way).
> > > > 
> > > > 
> > > > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12806
> > > > Subject		: i915 broken STR
> > > > Submitter	: Harvey Harrison <harvey.harrison@...il.com>
> > > > Date		: 2009-02-28 4:20 (4 days old)
> > > > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5669fcacc58bf3a7386057addffd280d75380858
> > > > References	: http://marc.info/?l=linux-kernel&m=123579487801064&w=4
> > > > 
> > > > 
> > > 
> > > This looks to have been a case of old-userspace..upgrading to
> > > xorg-intel-video 2.6.1 (ubuntu Jaunty Alpha5) fixes STR here.
> > 
> > Well, thanks, but I'm not really sure if this is a good news.
> > 
> > Jesse, Eric, does it mean we now break resume on anything earlier than 2.6.1
> > on the Harvey's hardware?
> 
> There's not much information (dmesg, Xorg.0.log) with this bug -- I'm
> guessing he's using KMS, given that that commit was where the problems
> started.  If so, yes, you really do need good userland for KMS to work.

BTW, Is suspend generally supposed to work with KMS and the 2.6.1 (or later) X
driver?

Rafael
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