Bug 490580

Summary:	App dropdown menu showing half a screen away on ultra wide
Product:	[Plasma] kwin	Reporter:	pawlikj1
Component:	xwayland	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	REOPENED ---
Severity:	normal	CC:	kde, pawlikj1, zawertun
Priority:	NOR	Keywords:	multiscreen
Version First Reported In:	6.1.2
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Screenshot of all three monitors with KiCAD showing bug on ultrawide Screenshot of all three monitors showing a kicad dropdown working correctly under x11

Description pawlikj1 2024-07-20 19:45:45 UTC

SUMMARY
App dropdown menu shows not under the dropdown but instead half a screen away. See attached screenshot. The problem is shown on the ultrawide screen with kicad application, but other GTK apps (that run under xWayland) are also affected.

STEPS TO REPRODUCE
1. Install KiCAD or any other GTK app that runs under xWayland
2. Use Wayland
3. Have at least two screens (I have three)
4. One of the screens must be ultrawide
5. Second screen must be either below or above the ultrawide screen - being on the right or left doesn't trigger the bug
5. Add a second default panel on the second (non-ultrawide) screen
6. The second panel on the non ultrawide must be on the right side of the screen
7. Open KiCAD on the ultrawide, hover mouse over any dropdown menu - the problem is there!

OBSERVED RESULT
App dropdown menu shows half a screen away. 

EXPECTED RESULT
App dropdown menu shows under the dropdown. 

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Linux 40 KDE
(available in About System)
KDE Plasma Version: 6.1.2
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2

ADDITIONAL INFORMATION
I'll check if the same issue is present under Kubuntu and update this ticket.

Comment 1 pawlikj1 2024-07-20 19:47:57 UTC

Screenshot didn't attach due to size constraints, I'll make it smaller and attach again in a minute.

Comment 2 pawlikj1 2024-07-20 19:50:51 UTC

Created attachment 171842 [details]
Screenshot of all three monitors with KiCAD showing bug on ultrawide

Comment 3 pawlikj1 2024-07-20 20:03:45 UTC

Tested with kubuntu on KDE 5. Issue is also present there.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 24.04 LTS
KDE Plasma Version: 5.27.11
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13

Comment 4 pawlikj1 2024-07-20 20:18:58 UTC

Tested with second device - laptop with two screen. One built in and second ultrawide. Used fedora 40 KDE. The issue is not present on the laptop.

Differences I can think of:
Built in vs actual second monitor
The laptop had nvidia instead of AMD on the desktop (first device) (I did not use proprietary drivers tho)
The laptop also has integrated Intel graphics

Comment 5 David Edmundson 2024-07-25 12:00:39 UTC

Can you confirm it all works as expected on your monitor setup on X11?

Do you have any scaling on any monitors?

Comment 6 pawlikj1 2024-07-25 14:12:10 UTC

Created attachment 171983 [details]
Screenshot of all three monitors showing a kicad dropdown working correctly under x11

Comment 7 pawlikj1 2024-07-25 14:13:53 UTC

Here is a screenshot showing the dropwdown in kicad working correctly under x11.

I don't have any display scaling on any of my monitors, either in x11 or wayland. All of my monitors are set to 100%.

Comment 8 Bug Janitor Service 2024-08-09 03:46:39 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

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

Comment 9 Bug Janitor Service 2024-08-24 03:47:42 UTC

🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.

Comment 10 pawlikj1 2024-08-24 11:07:14 UTC

Reopening as information has been provided. Apologies for not noticing the status earlier.