While attempting to rearrange icons on my task manager it stops allowing me to drop and drop icons after a few. The following errors can be seen in journalctl but I am not sure if they are related. This one is logged 5-6 times qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 51811, resource id: 31457657, major code: 2 (ChangeWindowAttributes), minor code: 0 This one I see 1 time qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 18127, resource id: 31457847, major code: 18 (ChangeProperty), minor code: 0 OBSERVED RESULT After 3 or 4 drags, the user is still able to "pick up" the icon but it doesn't move anywhere again unless you reboot/log out. EXPECTED RESULT The user is able to drag and place icons as many times as they want. SOFTWARE/OS VERSIONS OS: Arch Linux x86_64 Kernel: 5.14.16-arch1-1 (available in About System) KDE Plasma Version: 5.23.2 KDE Frameworks Version: 5.87.0 Qt Version: 5.15.2 Graphics Platform: X11
Those errors are unrelated. Cannot reproduce. :/
(In reply to Nate Graham from comment #1) > Those errors are unrelated. Cannot reproduce. :/ Maybe my steps were incorrect the first time. I had it happen just now from a reboot with various methods but the below one worked every time. Please try again: Perhaps it is tied to the amount of programs pinned? I have about 17 programs pinned in the task manager. 1) I took the 3rd last one and dragged it to the end. 2) Then again grabbed third last one to the end. 3) one more time did the same. After this the issue occurs where you can "pick up" the icon (it actually stays in the task manager but you get a mini version) however you cannot actually do anything with it but let go. This happens to all of the icons regardless if they moved before or not. Other cases, I simply did a cold boot and just dragged various programs here and there and then it stops working.
I can reproduce the bug. I will attach a video showing it.
Created attachment 143391 [details] Dragging icons in the Task Manager stops working
(In reply to zocsfxljsgpmiuaanz from comment #3) > I can reproduce the bug. I will attach a video showing it. Yep this is exactly what happens to me. Thanks for adding a clip. (In reply to Nate Graham from comment #1) > Those errors are unrelated. Cannot reproduce. :/ Any way I can help further diagnose this issue or are the new steps in comment 2 able to be reproduced?
Thanks, I can confirm the issue with those exact steps! Weird bug.
Should be no longer reproducible in 5.27 after the custom drag handler was ported away.
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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!