SUMMARY Plasma Pager only shows thumbnails of top screen when using multi-display setup. STEPS TO REPRODUCE 1. Attach extra monitor to laptop, configure to display above laptop 2. Place some windows on external (top) and laptop (below) screen OBSERVED RESULT Both screens are reserved in pager (layout adapts to new situation), but only windows on top screen have thumbnails. The same happens when the display layout is left-right, but then pager only shows thumbnails for the left screen. EXPECTED RESULT See thumbnails of all windows on all screens in pager SOFTWARE/OS VERSIONS Operating System: Kubuntu 19.10 KDE Plasma Version: 5.17.4 KDE Frameworks Version: 5.65.0 Qt Version: 5.12.4 Kernel Version: 5.3.10 OS Type: 64-bit Processors: 4 × Intel® Core™ i7-7500U CPU @ 2.70GHz Memory: 15.5 GiB of RAM
Created attachment 124567 [details] Screenshot Screenshot showing lower right corner of application that lacks thumbnail in active pager
I'm seeing the same on Fedora. Left hand screen (laptop) is fine, right hand screen (external) has no window outlines.
Created attachment 124730 [details] Patch that reverts pager to 5.16.5 version Seeing the same thing (also on Fedora 31). The attached patch, which reverts the pager to the 5.16.5 version, "fixes" the issue.
*** This bug has been marked as a duplicate of bug 414849 ***