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[quote="aseigo"]How many of you dealt with the bug reports filed against Kicker in KDE3 days? I'm guessing not many of you because there were unresolvable bugs reported against kicker due to this exact feature. So ...

Here's the issue with panels spanning screens: there is no guarantee, whatsoever, that screens have sort of positioning or resolution relative to each other.

They can be stacked vertically or horizontally, rotated (or not) and have different resolutions.

For two side-by-side monitors of the same resolution, it's trivial to do a screen spanning panel on the top or bottom. That's what we were thinking when the feature was put into kicker. Unfortunately, for every other configuration it sucks. Having features that don't work because of the way your screens are arranged is not something we want to provide.

The only way I can think of making this work is to have separate views on each screen which then share a single containment. This would mean some alterations to Plasma::View to make containment sharing possible. Then PanelView in plasma-desktop would need to modified to coordinate between themselves. Then the panel configuration window would need to be adjusted to work on two screens, resulting in the same set of issues: there would need to be one config window per screen. We'd need to detect stacking arrangements of the monitors so it works sanely in vertical as well as horizontal arrangements.

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So I was trying KDE and stumbled upon this issue !

I would like to exclaim that xfce does it better.. fine..

I went the KDE route and setup multiple panels !
Each panel was setup to show task from current screen !
And now when I maximize any app it shows up on all panels !

I wonder if no one faced this issue yet !

When using Windows I install a great app called Ultamon which extends the taskbar across multiple displays and also provide various other desktop improvements. I found it best for allowing quick access to applications which are open on any given monitor.

https://www.realtimesoft.com/ultramon/

8 years after the original 'Wont Fix' post I believe that KDE would be a better desktop for embracing this idea. Perhaps this could be reconsidered?

Any reason not to just set up two panels, one on each screen?
Kde allows you to set up as many panels as you want/need and reposition them however you feel like.