[Bug 162623] New: Multihead corrupts plasma panel and desktop, after crash of plasma, panel and desktop are ok, but System Tray is missing

[Samme Vreysen]

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http://bugs.kde.org/show_bug.cgi?id=162623         
           Summary: Multihead corrupts plasma panel and desktop, after crash
                    of plasma, panel and desktop are ok, but System Tray is
                    missing
           Product: plasma
           Version: unspecified
          Platform: Fedora RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: panel-devel kde org
        ReportedBy: sammevreysen hotmail com


Version:            (using KDE 4.0.4)
Installed from:    Fedora RPMs
OS:                Linux

It's a complicated bug.

I have a laptop (1024x768) and an external monitor (1280x1024). I try to set up a multihead like i did in kde 3.5 using xrandr. At first i have problems with the --auto setting as xrandr thinks i got more modes than my screens can handle. Anyway, i can go around this by using the next command:
"xrandr --output VGA --mode 1280x1024 --pos 0x0 --output LVDS --mode 1024x768 --pos 1280x0"

What happens next: i do get the expected multihead, but there are 2 mayor bugs: first the desktop backgrounds are placed on top of each other on the first screen, the second screen is filled with a gray or blue color and right click doesn't have effect. And second the panel is or missing or not updated to the actual multihead settings...

I accidentally figured out that killing (or crashing*) plasma can restore the desktop backgrounds and the panel. But here comes another bug around the corner: the System Tray is or missing or empty or missing items that were there before i went to multihead.

Additional to the fact i need to restart plasma, i sometimes have to restart kwin as well when the frames of the windows are missing...

At last, I want to add a feature: setting 2 different background pictures was easily done in kde 3.5 through the desktop configuration, so it would be nice this will become implemented in kde 4 as well :)

I hope you got enough information since i don't actually know what backtraces could give the information about this topic... but if specified, i'll provide them

Thanks

Samme Vreysen