View Full Version : [ubuntu] Help with setting $DISPLAY or specifying primary screen.

explicitly ambiguous
February 3rd, 2012, 06:16 PM
Setup: I have two X screens (i.e. DISPLAY=:0.0 and DISPLAY=:0.1 on the separate screens), running from different Nvidia graphics cards in a Ubuntu 10.04.

Problem: One of the monitors is often not visible, this is DISPLAY=:0.0. The DISPLAY=:0.0 screen is also where gdm puts the login dialogue. Popups (Authentication, info, volume control, copy dialogues, etc.) from gnome frequently appear on this screen and I would like them to appear on the other one (DISPLAY=:0.1).


Is there a way to specify which screen gdm and gnome use as the primary one?

Perhaps I can set $DISPLAY for each of the screens separately, but I couldn't find the correct google-foo to find this answer -- any ideas?

Perhaps there is a gnome setting somewhere that can set the default screen?

Happy to provide more info, or to clarify my questions.

explicitly ambiguous
February 8th, 2012, 11:00 PM
Anyone.....any ideas or places to start figuring this out?

explicitly ambiguous
February 16th, 2012, 12:52 AM