https://bugs.kde.org/show_bug.cgi?id=478040
Bug ID: 478040
Summary: Flickering kwin_x11[3569]: qt.qpa.xcb: QXcbConnection:
XCB error: 3 major code: 20, minor code 0
Classification: Plasma
Product: kwin
Version: git-stable-Plasma/5.27
Platform: Debian stable
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: k...@shoobsa.com
Target Milestone: ---
SUMMARY
I did a system update / upgrade incl install firmware update.
since then, the screen flickers with some programs (mostly vscode)
Logs from journalctl -xe
Dec 04 10:50:50 plasmashell[92517]: kf.xmlgui: cannot find .rc file
"kinfocenterui.rc" for component "kinfocenter"
Dec 04 10:50:50 plasmashell[92517]:
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"
Dec 04 10:50:50 plasmashell[92517]:
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"
Dec 04 10:50:51 plasmashell[92517]: QQmlEngine::setContextForObject(): Object
already has a QQmlContext
Dec 04 10:50:51 plasmashell[92517]: Hspell: can't open
/usr/share/hspell/hebrew.wgz.sizes.
Dec 04 10:50:51 plasmashell[92517]: kf.sonnet.clients.hspell:
HSpellDict::HSpellDict: Init failed
Dec 04 10:51:00 plasmashell[92517]: QQmlEngine::setContextForObject(): Object
already has a QQmlContext
Dec 04 10:51:00 plasmashell[92517]: Qt Quick Layouts: Detected recursive
rearrange. Aborting after two iterations.
Dec 04 10:51:00 plasmashell[92517]: Qt Quick Layouts: Detected recursive
rearrange. Aborting after two iterations.
Dec 04 10:51:00 plasmashell[92517]: Qt Quick Layouts: Detected recursive
rearrange. Aborting after two iterations.
Dec 04 10:51:00 plasmashell[92517]: qml: The item
SubCategoryPage_QMLTYPE_111(0x55b00279c120) is already in the PageRow
Dec 04 10:51:04 plasmashell[92517]: QQmlEngine::setContextForObject(): Object
already has a QQmlContext
Dec 04 10:51:04 plasmashell[92517]: qml: The item
SubCategoryPage_QMLTYPE_111(0x55b00279c120) is already in the PageRow
Dec 04 10:51:08 plasmashell[92517]: QQmlEngine::setContextForObject(): Object
already has a QQmlContext
Dec 04 10:51:08 plasmashell[92517]: qml: The item
SubCategoryPage_QMLTYPE_111(0x55b00279c120) is already in the PageRow
Dec 04 10:51:47 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 46492, resource id: 16847964, major code: 20
(GetProperty), minor code: 0
Dec 04 10:51:48 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 47120, resource id: 16847973, major code: 20
(GetProperty), minor code: 0
Dec 04 10:52:06 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 50225, resource id: 16848660, major code: 20
(GetProperty), minor code: 0
Dec 04 10:52:20 ksmserver[4139]: ATTENTION: default value of option
mesa_glthread overridden by environment.
Dec 04 10:52:30 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 55853, resource id: 16848669, major code: 20
(GetProperty), minor code: 0
Dec 04 10:52:45 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 58145, resource id: 16850092, major code: 20
(GetProperty), minor code: 0
Dec 04 10:54:12 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 1174, resource id: 16851878, major code: 20
(GetProperty), minor code: 0
Dec 04 10:54:15 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 1946, resource id: 16851965, major code: 20
(GetProperty), minor code: 0
Dec 04 10:54:25 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 3814, resource id: 16851974, major code: 20
(GetProperty), minor code: 0
Dec 04 10:54:26 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 4521, resource id: 16852301, major code: 20
(GetProperty), minor code: 0
Dec 04 10:54:31 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 6210, resource id: 16852337, major code: 20
(GetProperty), minor code: 0
Dec 04 10:54:41 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 9775, resource id: 16853282, major code: 20
(GetProperty), minor code: 0
Dec 04 10:54:59 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 12349, resource id: 16853291, major code: 20
(GetProperty), minor code: 0
Dec 04 10:55:16 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 15197, resource id: 16854264, major code: 20
(GetProperty), minor code: 0
Dec 04 10:55:20 ksmserver[4139]: ATTENTION: default value of option
mesa_glthread overridden by environment.
Dec 04 10:56:19 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 27003, resource id: 16857075, major code: 20
(GetProperty), minor code: 0
Dec 04 10:56:23 kwin_x11[3569]: qt.qpa.xcb: QXcbConnection: XCB error: 3
(BadWindow), sequence: 28092, resource id: 16857214, major code: 20
(GetProperty), minor code: 0
STEPS TO REPRODUCE
1. click on wifi icon in status bar or open vscode
OBSERVED RESULT
Flickering in several but not all programs:
- Statusbar - popups (eg after click on wifi network selection)
- vscode, completely
No flickering at all
- firefox
EXPECTED RESULT
No flickering
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.27.5
(available in About System)
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Kernel: 6.1.0-13-amd64 (64-bit)
Debian 12 main
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