Comment 15 for bug 465318

Hi again,

After disabling desktop effects, and waiting for a while (?) the X-server restarted and now I can use the external monitor and internal in mirror mode (I have external at 1600x1200, internal at 1024x768). Other configurations (xrandr --output VGA1 --above LVDS1...) do not change anything.

All the time I have the following output on dmesg:

[ 8784.334136] i915 0000:00:02.0: LVDS-1: EDID invalid.
[ 8784.744512] [drm:edid_is_valid] *ERROR* Raw EDID:
[ 8784.744517] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 8784.744520] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 8784.744522] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 8784.744524] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 8784.744543] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 8784.744545] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 8784.744547] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 8784.744549] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 8784.744551]

xrandr gives:
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 4096 x 4096
VGA1 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 360mm x 270mm
   1600x1200 75.0*+
   1280x1024 75.0
   1152x864 75.0
   1024x768 75.1 70.1 60.0
   832x624 74.6
   800x600 72.2 75.0 60.3
   640x480 72.8 75.0 60.0
   720x400 70.1
LVDS1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768 60.0*+ 85.0 75.0 70.1 60.0
   832x624 74.6
   800x600 85.1 72.2 75.0 60.3 56.2
   640x480 85.0 72.8 75.0 59.9
   720x400 85.0
   640x400 85.1
   640x350 85.1
DVI1 disconnected (normal left inverted right x axis y axis)

Juan