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From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Chris Wilson <chris@chris-wilson.co.uk>, intel-gfx@lists.freedesktop.org
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: screen freeze with 5.2-rc6 Dell XPS-13 skylake  i915
Date: Thu, 11 Jul 2019 13:11:18 -0700	[thread overview]
Message-ID: <1562875878.2840.0.camel@HansenPartnership.com> (raw)
In-Reply-To: <156283735757.12757.8954391372130933707@skylake-alporthouse-com>

On Thu, 2019-07-11 at 10:29 +0100, Chris Wilson wrote:
> Quoting James Bottomley (2019-06-29 19:56:52)
> > The symptoms are really weird: the screen image is locked in
> > place.  The machine is still functional and if I log in over the
> > network can do anything I like, including killing the X server and
> > the display will never alter.  It also seems that the system is
> > accepting keyboard input because when it freezes I can cat
> > information to a file (if the mouse was over an xterm) and verify
> > over the network the file contents. Nothing unusual appears in
> > dmesg when the lockup happens.
> > 
> > The last kernel I booted successfully on the system was 5.0, so
> > I'll try compiling 5.1 to narrow down the changes.
> 
> It's likely this is panel self-refresh going haywire.
> 
> commit 8f6e87d6d561f10cfa48a687345512419839b6d8
> Author: José Roberto de Souza <jose.souza@intel.com>
> Date:   Thu Mar 7 16:00:50 2019 -0800
> 
>     drm/i915: Enable PSR2 by default
> 
>     The support for PSR2 was polished, IGT tests for PSR2 was added
> and
>     it was tested performing regular user workloads like browsing,
>     editing documents and compiling Linux, so it is time to enable it
> by
>     default and enjoy even more power-savings.
> 
> Temporary workaround would be to set i915.enable_psr=0

It looks plausible.  I have to say I was just about to mark a bisect
containing this as good, but that probably reflects my difficulty
reproducing the issue.

James


  parent reply	other threads:[~2019-07-11 20:11 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-29 18:56 screen freeze with 5.2-rc6 Dell XPS-13 skylake i915 James Bottomley
2019-07-09 13:52 ` Paul Bolle
2019-07-10 15:01 ` James Bottomley
2019-07-10 16:16   ` Paul Bolle
2019-07-10 16:32     ` James Bottomley
2019-07-10 16:32       ` James Bottomley
2019-07-10 16:45       ` Paul Bolle
2019-07-10 16:45         ` Paul Bolle
2019-07-10 17:35         ` James Bottomley
2019-07-10 21:59           ` Paul Bolle
2019-07-10 22:18             ` James Bottomley
2019-07-11 19:32               ` [Intel-gfx] " Souza, Jose
2019-07-11 19:32                 ` Souza, Jose
2019-07-11  9:29 ` Chris Wilson
2019-07-11 11:20   ` Paul Bolle
2019-07-11 11:20     ` Paul Bolle
2019-07-12 10:32     ` Paul Bolle
2019-07-11 20:11   ` James Bottomley [this message]
2019-07-11 20:25     ` [Intel-gfx] " Souza, Jose
2019-07-11 20:25       ` Souza, Jose
2019-07-11 20:28       ` [Intel-gfx] " James Bottomley
2019-07-11 21:57         ` James Bottomley
2019-07-11 22:26           ` Souza, Jose
2019-07-11 22:26             ` Souza, Jose
2019-07-11 22:38             ` James Bottomley
2019-07-11 23:03               ` Paul Bolle
2019-07-11 23:28                 ` Souza, Jose
2019-07-11 23:28                   ` Souza, Jose
2019-07-11 23:40                   ` James Bottomley
2019-07-11 23:40                     ` James Bottomley
2019-07-12 14:19                     ` [Intel-gfx] " James Bottomley
2019-07-12 14:19                       ` James Bottomley
2019-07-12 14:28                       ` [Intel-gfx] " Paul Bolle
2019-07-15 21:03                         ` Souza, Jose
2019-07-15 21:03                           ` Souza, Jose
2019-07-15 21:34                           ` [Intel-gfx] " Paul Bolle
2019-07-15 21:34                             ` Paul Bolle
2019-07-16 16:32                             ` [Intel-gfx] " Souza, Jose
2019-07-16 16:32                               ` Souza, Jose
2019-07-17 21:27                               ` Paul Bolle
2019-07-17 21:27                                 ` Paul Bolle
2019-07-17 21:29                                 ` James Bottomley
2019-07-24 19:23                                   ` Paul Bolle
2019-07-24 20:27                                     ` Souza, Jose
2019-07-24 20:27                                       ` Souza, Jose
2019-07-24 20:39                                       ` [Intel-gfx] " Paul Bolle
2019-07-24 20:39                                         ` Paul Bolle
2019-07-24 20:42                                         ` Souza, Jose
2019-07-24 20:42                                           ` Souza, Jose
2019-08-09 17:16                                         ` Souza, Jose
2019-08-09 17:16                                           ` Souza, Jose
2019-08-10 19:40                                           ` Paul Bolle

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