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From: Lukas Wunner <lukas@wunner.de>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Daniel Vetter <daniel.vetter@intel.com>,
	Seth Forshee <seth.forshee@canonical.com>,
	dri-devel@lists.freedesktop.org, Dave Airlie <airlied@redhat.com>
Subject: Re: [PATCH 00/11] Enable gpu switching on the MacBook Pro
Date: Wed, 22 Apr 2015 15:48:03 +0200	[thread overview]
Message-ID: <20150422134803.GB883@wunner.de> (raw)
In-Reply-To: <20150421194935.GA13517@srcf.ucam.org>

Hi Matthew,

On Tue, Apr 21, 2015 at 08:49:35PM +0100, Matthew Garrett wrote:
> My testing suggested that changing the DDC lines didn't change auxch, so 
> this approach doesn't work for eDP. Have you found otherwise?

I only have a MacBookPro9,1 available for testing, which was the last
non-retina and thus uses LVDS. So I can vouch for proper functioning
of the patchset on pre-retinas, not on retinas (which use eDP because
dual channel LVDS maxes out 2048×1536@60 Hz, the retinas have 2880x1800).

Background:
The last non-retina (MacBookPro9,1) and the first retina (MacBookPro10,1)
were sold alongside each other, from June 2012 to October 2013.
The following generation (MacBookPro11, October 2013) was retina only.
Pre-retina MacBookPros with dual GPUs Intel/Nvidia or Intel/AMD were
available starting with the MacBookPro6, April 2010.

I cannot verify that gmux doesn't switch auxch but I understand you
worked around this by stashing the EDID after nouveau has read it and
retrieving the stashed version from i915:
http://www.codon.org.uk/~mjg59/tmp/retina_patches/0016-vga_switcheroo-Allow-stashing-of-panel-data.patch
http://www.codon.org.uk/~mjg59/tmp/retina_patches/0025-i915-Use-vga_switcheroo-to-obtain-and-stash-EDID-DPC.patch
http://www.codon.org.uk/~mjg59/tmp/retina_patches/0026-nouveau-Use-vga_switcheroo-to-obtain-and-stash-EDID-.patch

It would be great if someone with a retina MBP could test my patchset,
and if it doesn't work, try it with these three patches applied on top.

Thanks,

Lukas
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  reply	other threads:[~2015-04-22 13:48 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-21  9:58 [PATCH 00/11] Enable gpu switching on the MacBook Pro Lukas Wunner
2012-09-07 15:22 ` [PATCH 01/11] vga_switcheroo: Add support for switching only the DDC Lukas Wunner
2012-09-07 15:22 ` [PATCH 02/11] vga_switcheroo: Add helper function to get the active client Lukas Wunner
2012-09-07 15:22 ` [PATCH 03/11] apple-gmux: Add switch_ddc support Lukas Wunner
2012-09-07 15:22 ` [PATCH 04/11] drm/edid: Switch DDC when reading the EDID Lukas Wunner
2012-12-22  2:52 ` [PATCH 05/11] vga_switcheroo: Lock/unlock DDC lines Lukas Wunner
2014-03-05 22:34 ` [PATCH 09/11] apple-gmux: Assign apple_gmux_data before registering Lukas Wunner
2015-03-27 11:29 ` [PATCH 06/11] vga_switcheroo: Lock/unlock DDC lines harder Lukas Wunner
2015-04-19 15:01 ` [PATCH 10/11] drm/i915: Reprobe connectors if vga_switcheroo handler registers late Lukas Wunner
2015-04-21 11:50   ` Chris Wilson
2015-04-21 12:16     ` Lukas Wunner
2015-04-21 12:37       ` Chris Wilson
2015-04-19 15:18 ` [PATCH 11/11] drm/nouveau: Pause between setting gpu to D3hot and cutting the power Lukas Wunner
2015-04-20 10:08 ` [PATCH 08/11] vga_switcheroo: Reprobe connectors if handler registers late Lukas Wunner
2015-04-21  8:39 ` [PATCH 07/11] Revert "vga_switcheroo: Add helper function to get the active client" Lukas Wunner
2015-04-21 19:49 ` [PATCH 00/11] Enable gpu switching on the MacBook Pro Matthew Garrett
2015-04-22 13:48   ` Lukas Wunner [this message]
2015-04-25 14:20   ` Lukas Wunner
2015-05-02 19:03     ` Lu, Ran

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