On Tue, 2010-05-18 at 18:07 +0100, Simon Farnsworth wrote: > On Tuesday 18 May 2010, Adam Jackson <a...@redhat.com> wrote: > > On Mon, 2010-05-17 at 12:13 +0100, Simon Farnsworth wrote: > > > The first bit of misbehaviour I'm seeing is caching of EDID across > > > hotplug events. If I boot my system with no display attached, I > > > correctly see no EDID property. When I connect a monitor via VGA, using > > > cabling that supports DDC, I see EDID. When I unplug the monitor, I > > > continue to see the old EDID. When I then plug in using a cable that > > > doesn't support DDC, I see an extra mode appear in the mode list, but > > > the EDID has not changed. Connecting using the original cable, or > > > disconnecting cables completely removes this extra mode. > > > > commit 725398322d05486109375fbb85c3404108881e17 > > Author: Zhao Yakui <yakui.z...@intel.com> > > Date: Thu Mar 4 08:25:55 2010 +0000 > > > Adding that to my kernel build nearly fixed things for me. I still can't > explain why the 848x480 mode appears when I connect a DDC-crippled cable to > the GMA 945, but I can live with that, I suspect (it looks to be XServer > side, > anyway, and I'm about to have to generate patches there, as I don't want > default modes).
848x480 just barely fits in the default sync ranges, is why. - ajax
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