From: Daniel Vetter <daniel@ffwll.ch>
To: Maciej Rutecki <maciej.rutecki@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
dri-devel@lists.freedesktop.org,
"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: [3.4-rc1][Regression][intel] Resume from suspend to disk hangs on restoring backlight state
Date: Mon, 2 Apr 2012 21:05:23 +0200 [thread overview]
Message-ID: <20120402190523.GB5260@phenom.ffwll.local> (raw)
In-Reply-To: <201204022100.11096.maciej.rutecki@gmail.com>
On Mon, Apr 02, 2012 at 09:00:11PM +0200, Maciej Rutecki wrote:
> On poniedziałek, 2 kwietnia 2012 o 19:54:02 Daniel Vetter wrote:
> > On Mon, Apr 02, 2012 at 07:39:39PM +0200, Maciej Rutecki wrote:
> > > Last known good: 3.3
> > > Bad kernel: 3.4-rc1
> > > Subsystem: power management/suspend/dri(intel)
> > >
> > > When I resume from suspend to disk then system hangs on this screen:
> > > http://mrutecki.pl/download/kernel/3.4-rc1/suspend_resume/DSC_5479.jpg
> > >
> > > It does not help SysRq keys. Only I can force power off by hold power
> > > button.
> > >
> > > Dmesg:
> > > http://mrutecki.pl/download/kernel/3.4-rc1/suspend_resume/dmesg-3.4-rc1.t
> > > xt
> > >
> > > Config:
> > > http://mrutecki.pl/download/kernel/3.4-rc1/suspend_resume/config-3.4.0-rc
> > > 1
> >
> > Likely a known regression, ppgtt support broke hibernate because my code
> > doesn't restore the ppgtt page directory correctly in the thaw function.
> >
> > Patch:
> > http://cgit.freedesktop.org/~danvet/drm-intel/commit/?h=drm-intel-fixes&id=
> > 55a254ac63a3ac1867d1501030e7fba69c7d4aeb
> >
> > Please test whether this fixes your issue. You can also try adding
> > i915.i915_enable_ppgtt=0 to your kernel cmdline.
> >
> > Thanks, Daniel
>
> Patch solves problem.
>
> Now resume hangs later on another subsystem: wireless :D
Woot, I'm off the hook ;-) Thanks for reporting this issue and testing the
patch.
Yours, Daniel
--
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48
next prev parent reply other threads:[~2012-04-02 19:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-02 17:39 [3.4-rc1][Regression][intel] Resume from suspend to disk hangs on restoring backlight state Maciej Rutecki
2012-04-02 17:54 ` Daniel Vetter
2012-04-02 19:00 ` Maciej Rutecki
2012-04-02 19:05 ` Daniel Vetter [this message]
2012-04-11 19:35 ` Maciej Rutecki
2012-04-11 19:39 ` Daniel Vetter
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