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 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
