https://bugs.kde.org/show_bug.cgi?id=429168

            Bug ID: 429168
           Summary: wayland: taskmanager and icons-only taskmanager only
                    show pinned, no running
           Product: plasmashell
           Version: master
          Platform: Other
                OS: Other
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Task Manager and Icons-Only Task Manager
          Assignee: h...@kde.org
          Reporter: 1i5t5.dun...@cox.net
                CC: plasma-b...@kde.org
  Target Milestone: 1.0

On live-git (from the gentoo/kde overlay) for plasma/frameworks/apps.

Only on wayland (X is fine), neither taskmanager nor icons-only taskmanager
show anything but pinned apps.  I've just in the last week or so found running
on wayland stable enough to start seriously switching over, =:^), but that
means I don't really have a clue if or when it regressed, except that other
bugs suggest it /was/ working at some point and the lack of anything like this
reported recently suggests it may be currently working for others, tho wayland
users are likely still rather rare compared to X users so it may be just that.

Perhaps related, perhaps not, attempting to do window-list from the activity
mouse actions gives me nothing.  It could be due to the same root bug not
getting a window list to show, or it could be unrelated.

Current 5.10-rcX-git kernel, mesa 20.2.2, qt 5.15.1 (patched for the 5.15.1
multi-monitor issues), older amdgpu radeon polaris11 graphics on an older still
amd fx6100 series cpu, llvm 11.0.0 (and I see 10.0.1 still installed also),
gcc-10.2.0, two 4k 3840x2160 75-inch TVs as monitors, side-by-side layout.

Icons-only is what I normally run, showing all windows from all activities and
desktops, no pinned and no grouping, in a (transparent) dedicated auto-hide
panel with no other plasmoids.  At first I thought the panel was missing, but
context-clicking on it showed the usual context menu for both the panel and the
icons-only taskmanager, so it was there.

I then tried adding new instances of both taskmanager plasmoids to an activity,
which is when I realized the pinned icons were showing up, since I didn't have
any on my default instance.  But the new instances showed no running windows
either, only the pinned, and the fact that the same behavior happened in the
activity as in the panel says it's not a panel-specific issue.

I tried reverting to stock breeze, as well as oxygen, plasma-deco, as well.  Of
course the panels weren't transparent any longer, but it didn't fix the missing
running-window icons.

And for several days since I first noticed this, I've been doing system and kde
updates, restarting plasma in both wayland and X (CLI login no *DM, startx or
dbus-run-session from the CLI), updating kernels a couple times, setting up and
reconfiguring various other elements for my new wayland setup, with no change
on this front.  So whatever the problem is seems to be sticky, and it's time to
file a bug.

Obviously as I'm running live-git kde, I can throw any testing patches in and
see what turns up, if need be.  If you tell me what QT_LOGGING_RULES to set I
can try that too.

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