CentOS - Nov 2012 - One screen disabled on login with NVIDIA TwinView

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

This e-mail, including any attachments and response string, may contain
proprietary information which is confidential and may be legally privileged. It
is for the intended recipient only. If you are not the intended recipient or
transmission error has misdirected this e-mail, please notify the author by
return e-mail and delete this message and any attachment immediately. If you are
not the intended recipient you must not use, disclose, distribute, forward,
copy, print or rely on this e-mail in any way except as permitted by the author.

On 11/14/2012 12:38 PM, Toralf Lund wrote:
> Does anyone else see this? Do you know if there is a way around it?
I don't have your problem, but another one.

I want my second monitor to be above the internal monitor by default.

I solved that by adding

	Option "TwinViewOrientation" "Above"

to the Device section of the xorg.conf file.

Maybe you can google "xorg.conf twinview" and find the option to
insert into xorg.conf that makes your external monitor the primary?

BTW, for me there's a difference if I connect my second monitor via
displayport or VGA: The monitor isn't recognized automatically if I
use the VGA cable.

Mogens

-- 
Mogens Kjaer, mk at lemo.dk
http://www.lemo.dk