After couple of years, I decided to return to Ubuntu, from Debian (sid). I used to work with KDE, so I installed Ubuntu 13.04 and "kde-standard" on my laptop.
SHORT:
"Display configuration" is not available in Ubuntu+kde-standard, so I can not configure two displays… and default configuration is wrong. Tested Ubuntu+Unity and Ubuntu+Gnome3… both works well. Installing Kubuntu insted Ubuntu works, but I prefer Ubuntu.
LONG:
I have two displays for my laptop: the laptop one and an external display that is connected throw HDMI port. Under Ubuntu+Unity, I can configure resolution and displays relative position (one relative to the other)… but not under KDE… and KDE does not use automatically the right configuration, it uses a mirrored screen, with 4:3 resolution on both screens.
In KDE, this should be fixed changing the configuration in "System Settings -> Display and Monitor".. where "Display Configuration" menu should be available, together with "Screen Locker". But there is no "Display Configuration" menu, only "Screen Locker", so I can not change resolution, what screen is the primary one, relative position, etc.
Tried Gnome 3 under Ubuntu and settings works perfectly.
Now, I have installed Kubuntu instead Ubuntu and there is "Display Configuration" menu… but I prefer >>>> Ubuntu… x_x
Can someone help me?
Thank you!
Best Answer
KDE desktop metapackages
There are many ways to install the KDE desktop. The kde-standard (http://packages.ubuntu.com/raring/kde-standard ) doesn't have the KDE screen setup modules as dependencies. They can be installed later.
KDE screen setup modules
The new: Kscreen
The old: kde-workspace-randr
Both modules can be installed side by side. Both have own quirks: http://www.kubuntuforums.net/showthread.php?62632-How-do-I-undo-display-resolution-changes