Ubuntu
kdebase-workspace package

  1. Bug #290156
  2. Comment #23

Comment 23 for bug 290156

Revision history for this message
In , Bryce Harrington (bryce) wrote :

Forwarding this bug from a Ubuntu reporter:
https://bugs.edge.launchpad.net/ubuntu/+bug/290156

[Problem]
Intel D945Gnt + Hitachi CM721F monitor gets display out of range error on xserver 1.5.2.

[Discussion]
From the Xorg.0.log it appears confused what resolution to use, and ends up picking one the monitor can't do:

(II) intel(0): Using fuzzy aspect match for initial modes
(II) intel(0): Output VGA using initial mode 2048x1536

From the EDID it appears this monitor provides one modeline:

        Mode "1600x1200" # vfreq 75.000Hz, hfreq 93.750kHz
                DotClock 202.500000
                HTimings 1600 1664 1856 2160
                VTimings 1200 1201 1204 1250
                Flags "+HSync" "+VSync"
        EndMode

I'm assuming that it ought to be matching this modeline:

(II) intel(0): Modeline "1600x1200"x75.0 205.99 1600 1720 1896 2192 1200 1201 1204 1253 -hsync +vsync (94.0 kHz)

So why might it not be matching up properly? Where is the 2048x1536 resolution coming from? Is that what it's actually trying to use? Is there a way (e.g. a quirk) to force it to not use anything above 1600x1200?