From: Lukas Wunner <lukas@wunner.de>
To: Bastien Nocera <hadess@hadess.net>
Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v5 00/12] Enable GPU switching on pre-retina?MacBook Pro
Date: Tue, 5 Apr 2016 19:43:54 +0200 [thread overview]
Message-ID: <20160405174354.GA11991@wunner.de> (raw)
In-Reply-To: <1459875580.22718.11.camel@hadess.net>
Hi Bastien,
On Tue, Apr 05, 2016 at 06:59:40PM +0200, Bastien Nocera wrote:
> I tested the runtime patches for Radeon on top of 4.6.0-rc2, and
> writing DIGD failed. I also saw a number of messages with the
> vga_switcheroo core in the kernel trying to switch GPUs but failed
> because "client 1" was keeping it busy.
>
> Is there any way to see what this "client 1" actually is? I'm guessing
> plymouth. In any case, once I'm logged in, the "DIS" is powered and
> used, and the IGD is powered as well.
Client 1 is the discrete GPU, see enum vga_switcheroo_client_id in
include/linux/vga_switcheroo.h:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/include/linux/vga_switcheroo.h#n75
The vga_switcheroo documentation explains how to find out which
user space process is blocking the switch:
https://01.org/linuxgraphics/gfx-docs/drm/modes_of_use.html
"Prerequisite is that no user space processes (e.g. Xorg, alsactl)
have opened device files of the GPUs or the audio client. If the
switch fails, the user may invoke lsof(8) or fuser(1) on /dev/dri/
and /dev/snd/controlC1 to identify processes blocking the switch."
HTH,
Lukas
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next prev parent reply other threads:[~2016-04-05 17:43 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-11 19:09 [PATCH v5 00/12] Enable GPU switching on pre-retina MacBook Pro Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 11/12] drm/nouveau: Defer probe if gmux is present but its driver isn't Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 08/12] drm/radeon: Switch DDC when reading the EDID Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 06/12] drm/i915: " Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 10/12] drm/i915: Defer probe if gmux is present but its driver isn't Lukas Wunner
2016-02-09 9:04 ` Daniel Vetter
2016-02-14 12:10 ` Lukas Wunner
2016-02-14 12:46 ` Daniel Vetter
2016-02-16 15:58 ` Lukas Wunner
2016-02-16 16:08 ` Daniel Vetter
2016-02-18 20:34 ` Lukas Wunner
2016-02-18 21:39 ` Daniel Vetter
2016-02-18 22:20 ` Lukas Wunner
2016-02-18 23:11 ` Daniel Vetter
2016-02-18 23:53 ` Deucher, Alexander
2016-01-11 19:09 ` [PATCH v5 04/12] apple-gmux: Add switch_ddc support Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 03/12] apple-gmux: Track switch state Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 02/12] vga_switcheroo: Add support for switching only the DDC Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 07/12] drm/nouveau: Switch DDC when reading the EDID Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 12/12] drm/radeon: Defer probe if gmux is present but its driver isn't Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 05/12] drm/edid: Switch DDC when reading the EDID Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 01/12] vga_switcheroo: Add handler flags infrastructure Lukas Wunner
2016-01-11 19:09 ` [PATCH v5 09/12] apple-gmux: Add helper for presence detect Lukas Wunner
[not found] ` <cover.1452525860.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2016-02-01 22:49 ` [PATCH v5 00/12] Enable GPU switching on pre-retina MacBook Pro Lukas Wunner
2016-02-02 1:10 ` Dave Airlie
2016-02-02 1:19 ` Dave Airlie
2016-02-02 15:03 ` Lukas Wunner
[not found] ` <20160201224944.GA12944-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2016-02-02 6:33 ` Pierre Moreau
2016-02-08 18:10 ` Darren Hart
[not found] ` <20160208181000.GL1779-Z5kFBHtJu+EzCVHREhWfF0EOCMrvLtNR@public.gmane.org>
2016-02-09 9:01 ` Daniel Vetter
[not found] ` <loom.20160304T170007-454@post.gmane.org>
2016-03-05 14:16 ` [Intel-gfx] [PATCH v5 00/12] Enable GPU switching on pre-retina?MacBook Pro Lukas Wunner
2016-03-05 16:31 ` Bastien Nocera
2016-03-09 23:30 ` Dave Airlie
2016-03-10 15:29 ` Bastien Nocera
2016-03-10 15:33 ` Bastien Nocera
2016-03-14 12:41 ` [Intel-gfx] " Lukas Wunner
2016-03-14 13:37 ` Bastien Nocera
2016-03-15 7:51 ` Daniel Vetter
2016-03-15 11:10 ` [Intel-gfx] " Dave Airlie
2016-03-15 11:55 ` Bastien Nocera
2016-04-05 16:59 ` Bastien Nocera
2016-04-05 17:43 ` Lukas Wunner [this message]
2016-03-05 17:28 ` [Intel-gfx] " Bastien Nocera
2016-03-05 18:10 ` Alex Deucher
2016-03-15 17:54 ` Lukas Wunner
2016-03-15 18:33 ` Alex Deucher
2016-03-15 20:41 ` Lukas Wunner
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