Bug 427124

Summary:	Window sizes are not correctly restored on Wayland
Product:	[Plasma] kwin	Reporter:	Patrick Silva <bugseforuns>
Component:	wayland-generic	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	alex765, claudius.ellsel, nate, till2.schaefer, tromzy
Priority:	NOR	Keywords:	wayland-only
Version First Reported In:	5.22.5	Flags:	vlad.zahorodnii: Wayland+ vlad.zahorodnii: X11-
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Patrick Silva 2020-09-29 18:48:36 UTC

SUMMARY
This issue can also be reproduced with non-KDE Qt5 (tested qBittorrent) and gtk3 (tested Gedit text editor) apps running natively on Wayland.

STEPS TO REPRODUCE:
1. start Wayland session
2. open Kate
3. resize Kate window by dragging its borders
4. close Kate
5. reopen Kate (Kate is not maximized, as expected)
6. maximize Kate
7. close Kate
8. reopen Kate (Kate opens maximized, as expected)
9. restore Kate window by clicking on "Restore" button in its title bar

OBSERVED RESULT
the button clicked in the last step indicates that Kate window was restored but it is still occupying the whole screen

EXPECTED RESULT
Kate window should be restored to the size set via manual resizing in the step 3

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.19.90
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1

ADDITIONAL INFORMATION
my kwin was built today from source code

Comment 1 Claudius Ellsel 2020-10-17 13:57:09 UTC

The same problem was described in https://bugs.kde.org/show_bug.cgi?id=409919#c0, although the scope of that issue seems to be a different one now.

Comment 2 Vlad Zahorodnii 2020-10-17 17:42:28 UTC

Confirmed. KWin doesn't know the previous size of kate, so it needs to send a configure event with a width and a height of 0.

Comment 3 Patrick Silva 2020-10-21 19:22:23 UTC

*** Bug 428051 has been marked as a duplicate of this bug. ***

Comment 4 Till Schäfer 2021-03-18 12:45:03 UTC

I can confirm this bug under wayland. X11 is working fine. 

Operating System: Gentoo Linux
KDE Plasma Version: 5.21.3
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
Kernel Version: 5.11.7-gentoo
OS Type: 64-bit
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-4810MQ CPU @ 2.80GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 4600

Comment 5 Nate Graham 2021-09-24 20:56:35 UTC

On Wayland, are apps still allowed to set their own window sizes? I know they can't for their position, but what about window size? If so, I can probably fix this in kxmlgui.

Comment 6 Bug Janitor Service 2021-10-30 12:29:58 UTC

A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/1589

Comment 7 Vlad Zahorodnii 2022-02-18 10:25:59 UTC

Should be fixed in 5.24

Comment 8 Claudius Ellsel 2022-02-18 15:55:30 UTC

(In reply to Vlad Zahorodnii from comment #7)
> Should be fixed in 5.24

Hm, not sure. I think I didn't see improvement when I checked.