Ubuntu
xserver-xorg-video-intel package

  1. Bug #157213
  2. Comment #18

Comment 18 for bug 157213

Revision history for this message
In , Hong-liu (hong-liu) wrote :

From the xorg.log:
1. we can't probe the EDID data, so we change to use the probe the BIOS programmed mode. It seems this mode is also not correct, the dotclock is too low, and the refresh rate is only 24KHz.
(Modeline "1280x768"x0.0 40.54 1280 1328 1440 1688 768 771 777 806 (24.0 kHz))

2. Also we can't get a working mode from VBT table.
Modeline "54x0"x0.0 287.20 54 54 852 54 0 23 70 0 (5318.5 kHz)

So our driver can't find a good mode for the panel. Can you post the output of
1. xrandr --verbose
2. ddcprobe
Can you switch to other 1024x768 modes if there are some ?

thanks,
Hong