https://bugs.kde.org/show_bug.cgi?id=468493
Bug ID: 468493
Summary: Kwin 5.27.4.1 hangs windows in wayland
Classification: Plasma
Product: kwin
Version: 5.27.4
Platform: Neon
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: core
Assignee: kwin-bugs-n...@kde.org
Reporter: diction...@tutamail.com
Target Milestone: ---
SUMMARY
Updating to kwin 5.27.4.1 from 5.27.4 provokes a window management hang under
Wayland.
STEPS TO REPRODUCE
1. Install latest system updates on Kde Neon
2. Reboot
3. Open any application
OBSERVED RESULT
The application opening hangs for ~20sec , same when closing the application.
###The faulty kwin-x11:
$ apt-cache policy kwin-x11
kwin-x11:
Installed: 4:5.27.4.1-0xneon+22.04+jammy+release+build35
Candidate: 4:5.27.4.1-0xneon+22.04+jammy+release+build35
Version table:
*** 4:5.27.4.1-0xneon+22.04+jammy+release+build35 500
500 http://archive.neon.kde.org/user jammy/main amd64 Packages
100 /var/lib/dpkg/status
4:5.27.4-0xneon+22.04+jammy+release+build34 500
500 http://archive.neon.kde.org/user jammy/main amd64 Packages
4:5.27.3-0xneon+22.04+jammy+release+build33 500
500 http://archive.neon.kde.org/user jammy/main amd64 Packages
4:5.27.2-0xneon+22.04+jammy+release+build32 500
500 http://archive.neon.kde.org/user jammy/main amd64 Packages
4:5.27.1-0xneon+22.04+jammy+release+build31 500
500 http://archive.neon.kde.org/user jammy/main amd64 Packages
4:5.24.7-0ubuntu0.1 500
500 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64
Packages
4:5.24.4-0ubuntu1 500
500 http://archive.ubuntu.com/ubuntu jammy/universe amd64 Packages
###The syslog when opening an app:
Apr 13 12:41:51 host kwin_wayland[1368]: message repeated 2 times: [ kwin_core:
Could not find window with uuid "{db0155da-6cc2-4891-991c-a028d7680acd}"]
Apr 13 12:42:23 host plasmashell[1480]: QString::arg: 2 argument(s) missing in
systemsettings
Apr 13 12:42:23 host systemsettings[245120]:
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/ScrollablePage.qml:200:9:
QML MouseArea: Binding loop detected for property "width"
Apr 13 12:42:23 host systemsettings[245120]:
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/ScrollablePage.qml:200:9:
QML MouseArea: Binding loop detected for property "width"
Apr 13 12:42:23 host systemsettings[245120]: QQmlEngine::setContextForObject():
Object already has a QQmlContext
Apr 13 12:42:24 host systemsettings[245120]: qt.qpa.wayland: Wayland does not
support QWindow::requestActivate()
###And when closing it:
Apr 13 12:42:48 host kwin_wayland[1368]: kwin_core: Could not find window with
uuid "{709aa892-9802-405f-8928-f6aef7b8006d}"
EXPECTED RESULT
Almost immediate application window opening.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE Neon 5.27
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.8
ADDITIONAL INFORMATION
The problem was solved downgrading to 5.27.4 libkwinglutils14,
libkwineffects14, kwin-wayland, kwin-x11, kwin-data, kwin-common.
I'm using a laptop with 2 screens (external monitor).
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