Ubuntu
xserver-xorg-video-intel package

  1. Bug #745112
  2. Comment #151

Comment 151 for bug 745112

Revision history for this message
Martin Pool (mbp) wrote :

One apparently regression in 3.2.0-16.25 (maybe unconnected to this change?) is that fn-f7 does not seem to have any effect. It was working on the previous kernel I tried, both the Ubuntu ones and my own builds.

Turning on the external screen with xrandr does work:

xrandr --output DP1 --mode 2560x1600 --set audio off --above LVDS1

Using the displays control panel, the first time I tried, the monitor showed an error about the signal being wrong. I've just tried again and it has worked. So, I'm not sure. Also, after using the monitors control panel, Fn-F7 is working again. (So, perhaps the bug is in userspace?) I'll see if I can get a better description of what the problem is.