Force gdm login screen to the primary monitor

Posted by Kirill on Ask Ubuntu See other posts from Ask Ubuntu or by Kirill
Published on 2010-11-06T12:26:18Z Indexed on 2011/11/29 2:09 UTC
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Filed under:

10.10

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multiple-monitors

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gdm

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login-screen

I have two monitors attached to my video card. Primary monitor has a resolution equal to 1280x1024 and the second has 1920x1200. My gdm login screen always appears on the second monitor even if it is switched off. My question is how to force gdm to show the login screen always on the primary monitor with resolution 1280x1024?

I use Nvidia GT9500 videcard in Twinview mode. I can't use Xinerama because vpdau doesn't work correclty in this mode.

What I have found is that mouse pointer always appears in the center of union of the screens and center is always on the monitor with higher resolution. Login screen always shows where mouse cursor is.

Now my primary monitor has a resolution equal to 1920x1080. The problem still persists, mouse cursor always appears in the right-bottom corner of the second monitor.

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