[systemsettings] [Bug 320988] New: Dialog windows width changes to width > screen resolution after changing placement of DisplayPort monitor from (default) clone to extending to the right

[Kjetil Kilhavn]

https://bugs.kde.org/show_bug.cgi?id=320988

            Bug ID: 320988
           Summary: Dialog windows width changes to width > screen
                    resolution after changing placement of DisplayPort
                    monitor from (default) clone to extending to the right
    Classification: Unclassified
           Product: systemsettings
           Version: 1.0
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: kcm_randr
          Assignee: unassigned-bugs at kde.org
          Reporter: kjetil at kilhavn.no
                CC: hbock at providence.edu

When I plug in an external monitor the a dialog pops up and asks me if I want
to try and set it up automatically or open the settings dialog. Setting it up
automatically used to work well with the new KScreen KCM (it remembered my
preference), but I have reinstalled and now use only openSUSE RPMs. Setting it
up automatically will clone the screens, so I open the settings dialog.
When I change from cloning to extending the desktop to the right the dialog
window of the control module is resized. Only the width is affected, and is set
to a much to high value, possibly twice the screen resolution. In my opinion
the window size should not be changed at all - I was able to interact with it
and change the setting so it must be usable as it is. However, the width should
at least not be greater than the screen resolution.

Reproducible: Always

Steps to Reproduce:
1. Boot openSUSE 12.3 into KDE
2. Connect external monitor (to DisplayPort, but I think the same happens with
VGA)
3. Accept to try setting up automatically - which will clone the desktop
4. Open settings and change from cloning desktop to extending to right
5. Apply change
Actual Results:  
Screen setup applied correctly.
Settings window with increased to a width > screen resolution.

Expected Results:  
Screen setup applied correctly.
Settings window size should not have changed.

Hardware:
- external monitor: HP L2445W
- laptop: Lenovo ThinkPad T410 with NVidia graphics (NVS3100M)
- port: DisplayPort identified as DP-0

Software:
- openSUSE 12.3 official repositories
- kernel: 3.7.10-1.11-desktop
- graphics driver: NVidia proprietary 319.17 compiled using LNVHW script
- KDE 4.10.3 from openSUSE official repositories

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