Bug 443458 - Virtual Desktop on Taskbar Maybe Triggered by KScreen 2
Summary: Virtual Desktop on Taskbar Maybe Triggered by KScreen 2
Status: RESOLVED WORKSFORME
Alias: None
Product: plasmashell
Classification: Plasma
Component: Pager widget (show other bugs)
Version: 5.18.7
Platform: openSUSE Linux
: NOR minor
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-10-08 02:34 UTC by Vinh
Modified: 2022-12-08 05:15 UTC (History)
2 users (show)

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Description Vinh 2021-10-08 02:34:02 UTC
SUMMARY

My setup is two monitors.

One monitor is setup through a KVM switch, so I can switch between two computers on that one monitor.

By default, System Settings->Startup and Shutdown->Background Services has Startup Services/KScreen 2 running. KScreen 2 allows KDE to reconfigure the desktop screens, as necessary, whenever a monitor is added or disconnected, a very handy feature.

In my situation, I do not want KScreen 2 to do what it does normally, as whenever I switch the KVM to the other computer, the main computer will reconfigure the desktop to a single monitor. By disabling KScreen 2, I can use the KVM switch to peek at the other computer screen without disruption of the monitors or desktops. This has been working well... with one exception...

On the taskbar, there's a mini representation of the desktop, Virtual Desktop, which in two monitor mode, shows it as a wide desktop over two monitors, as expected, BUT whenever I use the KVM switch to peek at the other computer, the mini representation of the desktop squishes back to a single desktop on one monitor, even though KScreen 2 isn't running.

There is still something in the interface that is triggering the mini desktop representation to update, even without it actually updating, as I am not using KScreen 2 and have a fixed desktop config of two monitors. Could it be that there's something in the background with KScreen 2 triggering the Virtual Desktop update?

STEPS TO REPRODUCE
1. Turn off KScreen 2 on dual monitor setup and configure for one wide desktop across two monitors
2. Switch input for one monitor to another computer

OBSERVED RESULT

Virtual Desktop on Taskbar halves

EXPECTED RESULT

Virtual Desktop on Taskbar is unchanged

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: openSUSE Leap 15.2
(available in About System)
KDE Plasma Version: 5.18.6
KDE Frameworks Version: 5.71.0
Qt Version: 5.12.7

ADDITIONAL INFORMATION

Maybe it's a taskbar issue? But where to report that?
Comment 1 Nate Graham 2022-11-08 22:33:22 UTC
Thank you for the bug report. Unfortunately we were not able to get to it yet. Can we ask you to please check if this is still an issue with Plasma 5.25 or 5.26?

If it is, please add a comment with the output of `kscreen-doctor -o` and change the status to CONFIRMED. If not, or if you can't because you no longer use this setup, you can change the status to RESOLVED WORKSFORME. Thanks a lot!
Comment 2 Bug Janitor Service 2022-11-23 05:16:03 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 3 Bug Janitor Service 2022-12-08 05:15:34 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!