linux-kernel - Re: 3.15-rc: regression in suspend

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Message-ID: <20140514203115.GB5855@amd.pavel.ucw.cz>
Date:	Wed, 14 May 2014 22:31:15 +0200
From:	Pavel Machek <pavel@....cz>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Linux-pm mailing list <linux-pm@...ts.osdl.org>,
	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: 3.15-rc: regression in suspend

On Wed 2014-05-14 18:10:22, Jiri Kosina wrote:
> On Wed, 14 May 2014, Pavel Machek wrote:
> 
> > > So it might in the end of the day the same thing as I have reported in 
> > > 
> > > 	https://bugs.freedesktop.org/show_bug.cgi?id=76554
> > > 
> > > which is not 100% reproducible either (although with newer kernels it's 
> > > *much* more reproducible for me than with older).
> > > 
> > > > It worked few times on -rc5, but then I rebooted and problem 
> > > > re-appeared.
> > > 
> > > If you could capture dmesg of the resume where X fails to resume properly 
> > > to see whether you have i915 ring initialization errors there as well?
> > 
> > I did dmesg and I believe I would have noticed "*ERROR*" there.. but
> > I'll of course capture the buffer when it happens. 
> 
> Thanks.

Ok, so it happened again and the *ERROR* was there ... see the other mail.

> > Note that X do work somehow after resume (I can't switch virtual
> > desktops and dialog is stuck on screen, but it is not complete
> > failure). I can do ctrl-alt-f1 and get to useful prompt.
> 
> I have similar symptoms. The windows are not redrawing, etc.

Yep, it seems we have same bug.
									Pavel
-- 
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