Bug 455404 - Window vanishes when dragging window to another screen
Summary: Window vanishes when dragging window to another screen
Status: RESOLVED FIXED
Alias: None
Product: kwin
Classification: Plasma
Component: effects-overview (show other bugs)
Version: 5.25.3
Platform: openSUSE Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: wayland-only
: 455480 (view as bug list)
Depends on:
Blocks:
 
Reported: 2022-06-16 12:58 UTC by postix
Modified: 2022-09-27 16:46 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
Screen recording (2.85 MB, video/x-matroska)
2022-06-16 12:58 UTC, postix 		Details
kWin Support Info (6.83 KB, text/plain)
2022-06-16 12:59 UTC, postix 		Details
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Description postix 2022-06-16 12:58:42 UTC 
Created attachment 149789 [details]
Screen recording

STEPS TO REPRODUCE
1.  Open the overview effect
2.  Dragon window from screen A to B

OBSERVED RESULT
Only the drag cursor stays visible, the window has vanished. This issue is purely visible nature.


SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20220613
KDE Plasma Version: 5.25.0
KDE Frameworks Version: 5.94.0
Qt Version: 5.15.2
Kernel Version: 5.18.2-1-default (64-bit)
Graphics Platform: Wayland
Graphics Processor: AMD Radeon RX 580 Series
Comment 1 postix 2022-06-16 12:59:44 UTC 
Created attachment 149790 [details]
kWin Support Info
Comment 2 postix 2022-06-16 13:02:09 UTC 
Also effects `effects-present-windows`.
Comment 3 Vlad Zahorodnii 2022-06-17 08:01:51 UTC 
I can't reproduce it.
Comment 4 galder 2022-06-17 13:49:46 UTC 
same here,
I couldn't reproduce.
Operating System: Kubuntu 21.10
KDE Plasma Version: 5.25.0
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.2
Kernel Version: 5.13.0-51-generic (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-7700HQ CPU @ 2.80GHz
Memory: 15.5 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1060/PCIe/SSE2
Comment 5 galder 2022-06-17 13:51:03 UTC 
sorry this issue for Wayland.
ignore my message :)
Comment 6 postix 2022-06-17 13:55:12 UTC 
(In reply to galder from comment #5)
> sorry this issue for Wayland.
> ignore my message :)

Can you please test this on Wayland?
Comment 7 galder 2022-06-17 14:34:02 UTC 
Unfortunately when I try to use my compiled version of 5.25.0 in Kubuntu 21.10. I cant login in wayland from sddm.
I got black screens. Probably related to my custom setup. Anyway Ill try with the normal wayland session and then replace plasma desktop
that was working.

source ~/kde/build/plasma-desktop/prefix.sh
~/kde/usr/bin/plasmashell --replace
Comment 8 galder 2022-06-17 15:49:47 UTC 
just tested in wayland.
the window disappears in wayland 5.24.4 and 5.25.0.  x11 is fine.
Comment 9 galder 2022-06-17 16:11:59 UTC 
about my environment in wayland. I don't think is using nvidia dedicated gpu like it does in X11.
But I believe this is issue nvidia issue with current kubuntu 21.10 version.
So I don't know if my tests are valid for Wayland.
Comment 10 Nate Graham 2022-06-21 16:01:10 UTC 
*** Bug 455480 has been marked as a duplicate of this bug. ***
Comment 11 postix 2022-07-27 12:00:30 UTC 
Some more observations:

* The issue is independent on which screen is declared as primary. 

* The issue appears only on the logical left screen for me. Never on the right screen, even when switching the screens' positions in KScreen.

* The issue is rather independent of the scaling, so both mixed and same scaling setups are affected.
However, using a lower scaling (eg 100% vs 200%) on the left screen, results in the window disappearing earlier during the drag to the left edge on the left screen.
Comment 12 postix 2022-09-27 16:46:28 UTC 
\o/ looks like it's fixed on the current master.