https://bugzilla.kernel.org/show_bug.cgi?id=53391
--- Comment #7 from Stijn Tintel stijn+bugs@linux-ipv6.be 2013-02-09 22:09:53 --- The 2nd patch seems to give the same behaviour as the 1st patch. And I do not entirely agree it is only a cosmetic issue.
With nvidia.ko, I use an Xorg.conf just with the Device section to have X use the proprietary driver. There are no screen or serverlayout sections, and I let kwin configure my monitors. With nouveau, I use no Xorg.conf at all, because X autodetects the nouveau driver. The difference with the nouveau driver is that even when I save the monitor layout in the KDE settings, when I log out and back in, the settings are forgotten. I would call that a KDE/kwin bug, but this does not happen with the proprietary driver.