Ubuntu
xserver-xorg-video-intel package

  1. Bug #383345
  2. Comment #11

Comment 11 for bug 383345

Revision history for this message
Lucian Adrian Grijincu (lucian.grijincu) wrote : Re: dual screen not working: just a blank screen with a mouse pointer

1. I selected a resolution that works fine if the Virtual line is not present in xorg.conf: both screens at 1024x786, and I added the Virtual line to xorg.conf.

After restarting gdm I was greeted by the same blank screen with a mouse pointer.

2. Taking a suggestion from https://wiki.ubuntu.com/X/Troubleshooting, I tried adding
        Option "DRI" "false"
while still having the "Virtual" line in xorg.conf. Unfortunately, after restating gdm I was left with the same blank screen.

3. As suggested in xorg.conf, I ran
    sudo dpkg-reconfigure -phigh xserver-xorg
and I was left with a xorg.conf with no "Virtual" line, with which I could use dual-screen without mirroring for some configurations that do not need the Virtual line.