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xfree86/modes: Be sure to only use new EDID for physical output dimensions

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The EDID processing regards physical dimensions of 0mm x 0mm as
invalid. Previously the old values for height and width would be
preserved if none of the physical dimension specifications in the new
EDID were considered valid.

This will come up in particular if first a monitor is connected to an
output, and then a projector is connected. Since projectors generally
report physical dimensions of 0mm x 0mm, this would result in the
projector claiming to have the physical dimensions of the monitor.

Signed-off-by: Evan Broder <ebroder@mokafive.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit 12b0f7df2c)
This commit is contained in:
Evan Broder 2011-02-01 16:09:50 -08:00 • committed by Jeremy Huddleston
parent 11bf10e22c
commit 8a18d18bb3
1 changed files with 2 additions and 0 deletions
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2
hw/xfree86/modes/xf86Crtc.c
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@ -2976,6 +2976,8 @@ xf86OutputSetEDID (xf86OutputPtr output, xf86MonPtr edid_mon)
free(output->MonInfo);
output->MonInfo = edid_mon;
output->mm_width = 0;
output->mm_height = 0;
if (debug_modes) {
xf86DrvMsg(scrn->scrnIndex, X_INFO, "EDID for output %s\n",