Hi,
I have a W520 Lenovo laptop upgraded from 13.1 to 13.2 . When running the proprietary nvidia driver without any external displays, it thinks I have two displays connected and kdm only shows the left side of this extended screen on my laptop. This did not happen on 13.1 .
The interesting bits from Xorg.0.log are ( full log at http://susepaste.org/f060aa5b )
13.376] (--) NVIDIA(0): Valid display device(s) on Quadro 2000M at PCI:1:0:0
13.376] (--) NVIDIA(0): Lenovo Group Limited (CRT-0) (connected)
13.376] (--) NVIDIA(0): Lenovo Group Limited (DFP-0) (boot, connected)
I can work around the issue by tweaking the config in /etc/X11/xorg.conf.d/50-device.con to ignore some of the monitors, i.e.:
Section "Device"
Identifier "Default Device"
Option "ConnectedMonitor" "LVDS,DFP"
Driver "nvidia"
Option "UseEdidDpi" "False"
Option "DPI" "96 x 96"
EndSection
but I’m curious how to really fix this issue.
Have you been tweaking stuff to get your nouveau and NVIDIA to switch scheme 
Are you connected to a KVM or a dock??
Maybe you could correct it in NVIDIA X Server Settings (if using KDE, should be in System=>Configuration from the KDE menu), using the X Server Display Configuration section.
Or, perhaps in Configure Desktop using (in the Hardware section) Display and Monitor, where you could unify the outputs.
Of course, that is not actually the fix you are looking for, though.
Aaargh, sorry for the late reply - I forgot to subscribe. This seems to be an upstream issue, seehttps://devtalk.nvidia.com/default/topic/784322/linux/nvidia-340xx-causes-flickering-desktop-no-dual-monitor-possible-no-hd-videos-on-archlinux-x-ubunt/2/
The only ‘fix’ seems to be downgrading the driver, anyone know if I can get an RPM for an earlier version of the G03 driver?
I’ve switched to version 304.123 ( the G02 ) branch and everything works fine now. I’ll update to the G03 once the bug is fixed.
Not yet, hope to do so soon 
Yes, connected to a dock with to external displays. But the problem was the driver, see by previous post.