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Date:	Wed, 5 Mar 2014 18:22:32 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Daniel Vetter <daniel@...ll.ch>
cc:	Borislav Petkov <bp@...en8.de>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org
Subject: Re: i915 resume-from-hibernation problems on resume with current
 Linus' tree

On Wed, 5 Mar 2014, Daniel Vetter wrote:

> > > Maybe I should say that I'm booting the box with
> > > 
> > > [ 0.000000] Kernel command line: 
> > > BOOT_IMAGE=/boot/vmlinuz-3.14.0-rc5+ root=/dev/sdb2 ro 
> > > root=/dev/sdb2 ignore_loglevel log_buf_len=10M resume=/dev/sdb1 
> > > i915.i915_enable_rc6=4 i915.i915_enable_fbc=1 i915.lvds_downclock=1 
> > > i915.powersave=1
> > 
> > From looking at
> > 
> > http://lkml.kernel.org/r/1394011994-30604-1-git-send-email-daniel.vetter@ffwll.ch
> > 
> > it looks like I should stop using the rc6/fbc settings?
> > 
> > :-)
> 
> Indeed. If going back to defaults fixes your issues, then it's not a real
> bug. There are reasons the defaults are as-is ...

Let's not have the issues mixed.

The one originally reported in this thread

  *ERROR* render ring initialization failed ctl 0001f001 head 00003004 tail 00000000 start 00003000

and subsequent resume busted is there even with the default i915 driver 
settings.

Thanks,

-- 
Jiri Kosina
SUSE Labs
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