Ubuntu
xserver-xorg-video-intel package

  1. Bug #946311
  2. Comment #148

Comment 148 for bug 946311

Revision history for this message
In , Bug-track-c (bug-track-c) wrote :

Created attachment 87451
dmesg-3.12.0-rc4-00468-g16b4e9b + switch in grub

Here is dmesg with other workaround.
I started laptop with attached VGA and switched it default screen in grub with Fn+F8 button. After it both displays work OK.