[CentOS] One screen disabled on login with NVIDIA TwinView

Toralf Lund toralf.lund at pgs.com
Wed Nov 14 11:38:23 UTC 2012


Hi

Is anyone here using NVIDIA display drivers and a TwinView configuration 
on their systems? I've got a bit of an issue with such a setup, which 
started occurring after a recent driver update: I have a laptop that's 
normally connected to an external monitor (a Samsung SyncMaster), where 
this monitor and the built-in display on the laptop are set up with a 
TwinView configuration. The external monitor is set to be the primary 
display via NVIDIA X Server Settings.

Now, when X11 starts, both monitors seem to be enabled, based on the 
fact that the NVIDIA logo is displayed across both screens. The login 
screen then appears on the external monitor, just as I expect when it's 
set to primary display. But, when I actually log in, the display goes 
black, and the NVIDIA X Server Settings (which I open on the laptop 
display) report the following config:

Selection: Samsung SyncMaster (DFP-1)
Configuration: TwinView
Resolution: Off

I can easily re-enable the monitor by changing resolution to Auto or one 
of the listed dimensions, but having to do this every time I log in is a 
bit annoying.

Does anyone else see this? Do you know if there is a way around it?

This is on CentOS 5.8. Driver version is currently 304.60 - but I've 
also updated it a couple of times after this problem started occurring.

TIA

- Toralf

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