Ubuntu
xserver-xorg-video-intel package

  1. Bug #158415
  2. Comment #29

Comment 29 for bug 158415

Revision history for this message
Alex Krastelev (alex-netrc) wrote : Re: [Needs GEM] higher resolutions aren't recognized for external monitors after hotplugging but after X start (Virtual is static)

Confirm the problem in Intrepid 8.10 running on eee 901. After initial install, both xrandr -q and System-->Preferences--> Screen Resolution detect the external monitor, but report incorrect maximum resolution 1024x768 for the monitor capable of 1280x1024.

lspci shows
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)

Changing Virtual in /etc/X11/xorg.conf and restarting X solves the problem:

--- xorg.conf.orig 2009-01-03 10:36:18.000000000 +0100
+++ xorg.conf 2009-01-18 16:50:53.000000000 +0100
@@ -27,7 +27,7 @@
        Monitor "Configured Monitor"
        Device "Configured Video Device"
        SubSection "Display"
- Virtual 2048 768
+ Virtual 2304 1024
        EndSubSection
 EndSection

The bug can be confusing for a user, because it creates an impression of graphic card or monitor being incapable of higher resolutions (resolutions higher than virtual are not shown at all).