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From: Seth Forshee <seth.forshee@canonical.com>
To: Dave Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	Matthew Garrett <mjg59@srcf.ucam.org>,
	David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	Andreas Heider <andreas@meetr.de>
Subject: Re: [RFC PATCH 3/5] drm/i915: register LVDS connector even if we can't get a panel mode
Date: Mon, 20 Aug 2012 10:30:57 -0500	[thread overview]
Message-ID: <1345476664-22066-1-git-send-email-seth.forshee@canonical.com> (raw)
In-Reply-To: <20120806045150.GA23652@thinkpad-t410>

On Fri, Aug 10, 2012 at 05:19:48PM -0500, Seth Forshee wrote:
> First, I don't have a solution for the ordering of initialization. It
> just happens to work out for me right now.

Okay, I've got a proof-of-concept implementation of delaying secondary
GPU initialization until the i2c can be muxed over to that card. It's
not exactly pretty, but it is working. I'd really like to get some
feedback on the concept and implementation before spending more time on
it. Patches follow.

One problem I'm aware of is if the switcheroo handler is in the driver
for the secondary GPU. I think this was the case for a machine I used to
have with Optimus graphics. In that scenario the secondary graphics
device is never initialized because the switcheroo handler is registered
during initialization of the secondary device. The driver load method
would need to be split up to cope with this.

Thanks,
Seth


  reply	other threads:[~2012-08-20 15:31 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-03 16:02 [RFC PATCH 0/5] i915 changes for hybrid graphics support on Macbooks Seth Forshee
2012-08-03 16:02 ` [RFC PATCH 1/5] drm/i915: Add support for vga_switcheroo reprobe Seth Forshee
2012-08-03 16:02 ` [RFC PATCH 2/5] drm/i915: separate out code to get EDID from LVDS panel Seth Forshee
2012-08-03 16:02 ` [RFC PATCH 3/5] drm/i915: register LVDS connector even if we can't get a panel mode Seth Forshee
2012-08-03 16:14   ` Matthew Garrett
2012-08-03 16:24     ` Seth Forshee
2012-08-03 16:27       ` Matthew Garrett
2012-08-04 16:57         ` Seth Forshee
2012-08-05 21:14           ` Daniel Vetter
2012-08-05 21:18             ` Matthew Garrett
2012-08-05 21:40               ` Daniel Vetter
2012-08-05 21:44                 ` Dave Airlie
2012-08-05 23:20                   ` Alex Deucher
2012-08-06  4:51                     ` Seth Forshee
2012-08-20 15:30                       ` Seth Forshee [this message]
2012-08-20 15:30                         ` [RFC PATCH 1/7] vga_switcheroo: Add support for switching only the DDC Seth Forshee
2012-08-20 15:30                         ` [RFC PATCH 2/7] vga_switcheroo: Add helper function to get the active client Seth Forshee
2012-08-20 15:31                         ` [RFC PATCH 3/7] vga_switcheroo: Add notifier call chain for switcheroo events Seth Forshee
2012-08-20 15:31                         ` [RFC PATCH 4/7] apple-gmux: Add switch_ddc support Seth Forshee
2012-08-20 15:31                         ` [RFC PATCH 5/7] drm/edid: Switch DDC when reading the EDID Seth Forshee
2012-08-20 15:31                         ` [RFC PATCH 6/7] drm/pci: Add drm_put_pci_dev() Seth Forshee
2012-08-20 15:31                         ` [RFC PATCH 7/7] drm/pci: Defer initialization of secondary graphics devices until switcheroo is ready Seth Forshee
2012-08-20 15:36                           ` Matthew Garrett
2012-08-20 15:56                             ` Seth Forshee
2012-08-20 15:57                               ` Matthew Garrett
2012-08-20 16:24                                 ` Seth Forshee
2012-08-20 16:28                                   ` Matthew Garrett
2012-08-10 22:19                   ` [RFC PATCH 3/5] drm/i915: register LVDS connector even if we can't get a panel mode Seth Forshee
2012-08-06 12:23                 ` Matthew Garrett
2012-08-06 20:16                   ` Seth Forshee
2012-08-03 16:02 ` [RFC PATCH 4/5] drm/i915: make intel_lvds_get_edid() more robust Seth Forshee
2012-08-03 16:02 ` [RFC PATCH 5/5] drm/i915: check LVDS for EDID on GPU switches Seth Forshee

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