Meu desktop usa o Kubuntu 24.04, totalmente atualizado, com o KDE Plasma 5.27.12. Cerca de uma semana atrás, decidi dar outra chance ao Wayland, e dessa vez achei que tudo funcionou perfeitamente, exceto pelo fato de que a opção Screen Energy Saving parece não funcionar...
Para ser preciso, ele funciona inicialmente, uma vez que o tempo ocioso tenha decorrido, e a tela fique preta. Mas ele permanece preto por cerca de 10 segundos apenas, então a tela volta a ligar novamente. Obviamente, há algo substituindo as configurações definidas (por mim) em Configurações do Sistema -> Energia.
A mesma coisa acontece se eu desligar a tela via CLI ( kscreen-doctor -d off), ou seja, a tela permanece preta por cerca de 10 segundos e depois acende novamente. Se eu escolher colocar o PC no modo de suspensão/hibernação após o mesmo período de tempo, a tela não acende novamente, mas é claro que não é isso que eu quero.
Após a tela acender novamente, em System Settings -> Display and Monitor, aparecem as seguintes informações: Uma nova saída foi adicionada. As configurações foram recarregadas. Eu obtenho, de fato, a seguinte saída interessante:
tail -f /var/log/syslog
......
2025-02-14T16:15:20.425314+01:00 kaus kactivitymanagerd[2625]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.425640+01:00 kaus kded5[2563]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.425915+01:00 kaus polkit-kde-authentication-agent-1[2641]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.426185+01:00 kaus foot[2779]: warn: wayland.c:1382: unknown global removed: 0x0000004f
2025-02-14T16:15:20.426443+01:00 kaus DiscoverNotifier[2802]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.426480+01:00 kaus foot: wayland: unknown global removed: 0x0000004f
2025-02-14T16:15:20.426679+01:00 kaus plasmashell[4761]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.426909+01:00 kaus xdg-desktop-portal-kde[3113]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.446383+01:00 kaus org_kde_powerdevil[5644]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.452066+01:00 kaus org_kde_powerdevil[2642]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.456716+01:00 kaus org_kde_powerdevil[5650]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.477425+01:00 kaus org_kde_powerdevil[5644]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:20.487835+01:00 kaus org_kde_powerdevil[5650]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:20.492526+01:00 kaus plasmashell[5655]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.524998+01:00 kaus plasmashell[5655]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:20.566383+01:00 kaus plasmashell[5663]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.571856+01:00 kaus kded5[2849]: xsettingsd: Reloading configuration
2025-02-14T16:15:20.572028+01:00 kaus kded5[2849]: xsettingsd: Loaded 12 settings from /home/mario/.config/xsettingsd/xsettingsd.conf
2025-02-14T16:15:20.573351+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:20.586841+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
2025-02-14T16:15:20.600327+01:00 kaus plasmashell[5663]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:20.602521+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
2025-02-14T16:15:20.606076+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:20: TypeError: Cannot read property 'pluginName' of null
2025-02-14T16:15:20.606343+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:75: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:20.606506+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:78: TypeError: Cannot read property 'pluginName' of null
2025-02-14T16:15:20.606659+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:80: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:20.606797+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:81: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:20.606941+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:82: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:20.607092+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:83: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:20.607265+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:84: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:20.607421+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:16: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:20.607579+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:17: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:20.607733+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:18: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:20.700216+01:00 kaus kded5[2849]: xsettingsd: Reloading configuration
2025-02-14T16:15:20.700254+01:00 kaus kded5[2849]: xsettingsd: Loaded 12 settings from /home/mario/.config/xsettingsd/xsettingsd.conf
2025-02-14T16:15:20.816145+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL vendor string: Intel
2025-02-14T16:15:20.816430+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL renderer string: Mesa Intel(R) UHD Graphics 630 (CFL GT2)
2025-02-14T16:15:20.816557+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL version string: 4.6 (Core Profile) Mesa 24.2.8-1ubuntu1~24.04.1
2025-02-14T16:15:20.816656+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL shading language version string: 4.60
2025-02-14T16:15:20.816745+01:00 kaus kwin_wayland_wrapper[2502]: Driver: Intel
2025-02-14T16:15:20.816825+01:00 kaus kwin_wayland_wrapper[2502]: GPU class: Coffee Lake
2025-02-14T16:15:20.816948+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL version: 4.6
2025-02-14T16:15:20.817030+01:00 kaus kwin_wayland_wrapper[2502]: GLSL version: 4.60
2025-02-14T16:15:20.817110+01:00 kaus kwin_wayland_wrapper[2502]: Mesa version: 24.2.8
2025-02-14T16:15:20.817207+01:00 kaus kwin_wayland_wrapper[2502]: X server version: 1.23.2
2025-02-14T16:15:20.817330+01:00 kaus kwin_wayland_wrapper[2502]: Linux kernel version: 6.8
2025-02-14T16:15:20.817448+01:00 kaus kwin_wayland_wrapper[2502]: Requires strict binding: no
2025-02-14T16:15:20.817546+01:00 kaus kwin_wayland_wrapper[2502]: GLSL shaders: yes
2025-02-14T16:15:20.817643+01:00 kaus kwin_wayland_wrapper[2502]: Texture NPOT support: yes
2025-02-14T16:15:20.817738+01:00 kaus kwin_wayland_wrapper[2502]: Virtual Machine: no
2025-02-14T16:15:21.020900+01:00 kaus kwin_wayland_wrapper[2502]: BlurConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.023996+01:00 kaus kwin_wayland_wrapper[2502]: ZoomConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.025121+01:00 kaus kwin_wayland_wrapper[2502]: WindowViewConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.026215+01:00 kaus kwin_wayland_wrapper[2502]: SlidingPopupsConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.026382+01:00 kaus kwin_wayland_wrapper[2502]: SlideConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.026613+01:00 kaus kwin_wayland_wrapper[2502]: OverviewConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.027160+01:00 kaus kwin_wayland_wrapper[2502]: KscreenConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.027885+01:00 kaus kwin_wayland_wrapper[2502]: DesktopGridConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.500242+01:00 kaus org_kde_powerdevil[5682]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:21.532164+01:00 kaus plasmashell[5686]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:21.543067+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
2025-02-14T16:15:21.543131+01:00 kaus plasmashell[2599]: Checking screens: available: (QScreen(0x5fedb26e8010, name="DP-3")) redundant: QHash() fake: QSet(QScreen(0x5fedb2832170, name="")) all: (QScreen(0x5fedb2832170, name=""), QScreen(0x5fedb26e8010, name="DP-3"))
2025-02-14T16:15:21.607762+01:00 kaus kded5[2849]: xsettingsd: Reloading configuration
2025-02-14T16:15:21.607819+01:00 kaus kded5[2849]: xsettingsd: Loaded 12 settings from /home/mario/.config/xsettingsd/xsettingsd.conf
2025-02-14T16:15:21.724534+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL vendor string: Intel
2025-02-14T16:15:21.724669+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL renderer string: Mesa Intel(R) UHD Graphics 630 (CFL GT2)
2025-02-14T16:15:21.724707+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL version string: 4.6 (Core Profile) Mesa 24.2.8-1ubuntu1~24.04.1
2025-02-14T16:15:21.724742+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL shading language version string: 4.60
2025-02-14T16:15:21.724769+01:00 kaus kwin_wayland_wrapper[2502]: Driver: Intel
2025-02-14T16:15:21.724802+01:00 kaus kwin_wayland_wrapper[2502]: GPU class: Coffee Lake
2025-02-14T16:15:21.724829+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL version: 4.6
2025-02-14T16:15:21.724918+01:00 kaus kwin_wayland_wrapper[2502]: GLSL version: 4.60
2025-02-14T16:15:21.724948+01:00 kaus kwin_wayland_wrapper[2502]: Mesa version: 24.2.8
2025-02-14T16:15:21.724981+01:00 kaus kwin_wayland_wrapper[2502]: X server version: 1.23.2
2025-02-14T16:15:21.725010+01:00 kaus kwin_wayland_wrapper[2502]: Linux kernel version: 6.8
2025-02-14T16:15:21.725039+01:00 kaus kwin_wayland_wrapper[2502]: Requires strict binding: no
2025-02-14T16:15:21.725071+01:00 kaus kwin_wayland_wrapper[2502]: GLSL shaders: yes
2025-02-14T16:15:21.725102+01:00 kaus kwin_wayland_wrapper[2502]: Texture NPOT support: yes
2025-02-14T16:15:21.725170+01:00 kaus kwin_wayland_wrapper[2502]: Virtual Machine: no
2025-02-14T16:15:21.732241+01:00 kaus kwin_wayland_wrapper[2502]: BlurConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.733999+01:00 kaus kwin_wayland_wrapper[2502]: ZoomConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.735218+01:00 kaus kwin_wayland_wrapper[2502]: WindowViewConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.736053+01:00 kaus kwin_wayland_wrapper[2502]: SlidingPopupsConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.736185+01:00 kaus kwin_wayland_wrapper[2502]: SlideConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.736374+01:00 kaus kwin_wayland_wrapper[2502]: OverviewConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.736800+01:00 kaus kwin_wayland_wrapper[2502]: KscreenConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.737320+01:00 kaus kwin_wayland_wrapper[2502]: DesktopGridConfig::instance called after the first use - ignoring
2025-02-14T16:15:21.807503+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
2025-02-14T16:15:21.823266+01:00 kaus plasmashell[2599]: message repeated 3 times: [ qt.qpa.wayland: Wayland does not support QWindow::requestActivate()]
2025-02-14T16:15:22.372133+01:00 kaus DiscoverNotifier[2802]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.372448+01:00 kaus foot[2779]: warn: wayland.c:1382: unknown global removed: 0x00000051
2025-02-14T16:15:22.372711+01:00 kaus polkit-kde-authentication-agent-1[2641]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.372930+01:00 kaus kactivitymanagerd[2625]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.373094+01:00 kaus kded5[2563]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.373141+01:00 kaus foot: wayland: unknown global removed: 0x00000051
2025-02-14T16:15:22.373394+01:00 kaus xdg-desktop-portal-kde[3113]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.373731+01:00 kaus plasmashell[4761]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.397611+01:00 kaus org_kde_powerdevil[5726]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.398211+01:00 kaus org_kde_powerdevil[2642]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.404861+01:00 kaus org_kde_powerdevil[5732]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.419837+01:00 kaus org_kde_powerdevil[5726]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:22.427077+01:00 kaus org_kde_powerdevil[5732]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:22.451625+01:00 kaus plasmashell[5738]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.488961+01:00 kaus plasmashell[5738]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:22.521557+01:00 kaus kded5[2849]: xsettingsd: Reloading configuration
2025-02-14T16:15:22.524481+01:00 kaus kded5[2849]: xsettingsd: Loaded 12 settings from /home/mario/.config/xsettingsd/xsettingsd.conf
2025-02-14T16:15:22.547828+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.553843+01:00 kaus plasmashell[5745]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
2025-02-14T16:15:22.561598+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
2025-02-14T16:15:22.576030+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
2025-02-14T16:15:22.577459+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:20: TypeError: Cannot read property 'pluginName' of null
2025-02-14T16:15:22.577520+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:75: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:22.577566+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:78: TypeError: Cannot read property 'pluginName' of null
2025-02-14T16:15:22.577591+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:80: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:22.577613+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:81: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:22.577639+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:82: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:22.577663+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:83: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:22.577686+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:84: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:22.577738+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:16: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:22.577761+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:17: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:22.577795+01:00 kaus plasmashell[2599]: file:///usr/share/plasma/wallpapers/org.kde.slideshow/contents/ui/main.qml:18: TypeError: Cannot read property 'configuration' of null
2025-02-14T16:15:22.582656+01:00 kaus plasmashell[5745]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:22.674442+01:00 kaus kded5[2849]: xsettingsd: Reloading configuration
2025-02-14T16:15:22.674478+01:00 kaus kded5[2849]: xsettingsd: Loaded 12 settings from /home/mario/.config/xsettingsd/xsettingsd.conf
2025-02-14T16:15:22.800943+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL vendor string: Intel
2025-02-14T16:15:22.801060+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL renderer string: Mesa Intel(R) UHD Graphics 630 (CFL GT2)
2025-02-14T16:15:22.801131+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL version string: 4.6 (Core Profile) Mesa 24.2.8-1ubuntu1~24.04.1
2025-02-14T16:15:22.801256+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL shading language version string: 4.60
2025-02-14T16:15:22.801345+01:00 kaus kwin_wayland_wrapper[2502]: Driver: Intel
2025-02-14T16:15:22.801561+01:00 kaus kwin_wayland_wrapper[2502]: GPU class: Coffee Lake
2025-02-14T16:15:22.801704+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL version: 4.6
2025-02-14T16:15:22.801839+01:00 kaus kwin_wayland_wrapper[2502]: GLSL version: 4.60
2025-02-14T16:15:22.801982+01:00 kaus kwin_wayland_wrapper[2502]: Mesa version: 24.2.8
2025-02-14T16:15:22.802086+01:00 kaus kwin_wayland_wrapper[2502]: X server version: 1.23.2
2025-02-14T16:15:22.802246+01:00 kaus kwin_wayland_wrapper[2502]: Linux kernel version: 6.8
2025-02-14T16:15:22.802422+01:00 kaus kwin_wayland_wrapper[2502]: Requires strict binding: no
2025-02-14T16:15:22.802565+01:00 kaus kwin_wayland_wrapper[2502]: GLSL shaders: yes
2025-02-14T16:15:22.802709+01:00 kaus kwin_wayland_wrapper[2502]: Texture NPOT support: yes
2025-02-14T16:15:22.802906+01:00 kaus kwin_wayland_wrapper[2502]: Virtual Machine: no
2025-02-14T16:15:22.970701+01:00 kaus kwin_wayland_wrapper[2502]: BlurConfig::instance called after the first use - ignoring
2025-02-14T16:15:22.972646+01:00 kaus kwin_wayland_wrapper[2502]: ZoomConfig::instance called after the first use - ignoring
2025-02-14T16:15:22.973338+01:00 kaus kwin_wayland_wrapper[2502]: WindowViewConfig::instance called after the first use - ignoring
2025-02-14T16:15:22.974403+01:00 kaus kwin_wayland_wrapper[2502]: SlidingPopupsConfig::instance called after the first use - ignoring
2025-02-14T16:15:22.974496+01:00 kaus kwin_wayland_wrapper[2502]: SlideConfig::instance called after the first use - ignoring
2025-02-14T16:15:22.974650+01:00 kaus kwin_wayland_wrapper[2502]: OverviewConfig::instance called after the first use - ignoring
2025-02-14T16:15:22.974989+01:00 kaus kwin_wayland_wrapper[2502]: KscreenConfig::instance called after the first use - ignoring
2025-02-14T16:15:22.975489+01:00 kaus kwin_wayland_wrapper[2502]: DesktopGridConfig::instance called after the first use - ignoring
2025-02-14T16:15:23.144882+01:00 kaus org_kde_powerdevil[5763]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:23.187486+01:00 kaus plasmashell[5769]: Initializing "/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/kcms/systemsettings/kcm_fonts.so"
2025-02-14T16:15:23.202846+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
2025-02-14T16:15:23.202882+01:00 kaus plasmashell[2599]: Checking screens: available: (QScreen(0x5fedb2715a40, name="DP-3")) redundant: QHash() fake: QSet(QScreen(0x7058b000b3b0, name="")) all: (QScreen(0x7058b000b3b0, name=""), QScreen(0x5fedb2715a40, name="DP-3"))
2025-02-14T16:15:23.241293+01:00 kaus kded5[2849]: xsettingsd: Reloading configuration
2025-02-14T16:15:23.241339+01:00 kaus kded5[2849]: xsettingsd: Loaded 12 settings from /home/mario/.config/xsettingsd/xsettingsd.conf
2025-02-14T16:15:23.372171+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL vendor string: Intel
2025-02-14T16:15:23.372240+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL renderer string: Mesa Intel(R) UHD Graphics 630 (CFL GT2)
2025-02-14T16:15:23.372272+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL version string: 4.6 (Core Profile) Mesa 24.2.8-1ubuntu1~24.04.1
2025-02-14T16:15:23.372302+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL shading language version string: 4.60
2025-02-14T16:15:23.372333+01:00 kaus kwin_wayland_wrapper[2502]: Driver: Intel
2025-02-14T16:15:23.372393+01:00 kaus kwin_wayland_wrapper[2502]: GPU class: Coffee Lake
2025-02-14T16:15:23.372425+01:00 kaus kwin_wayland_wrapper[2502]: OpenGL version: 4.6
2025-02-14T16:15:23.372460+01:00 kaus kwin_wayland_wrapper[2502]: GLSL version: 4.60
2025-02-14T16:15:23.372498+01:00 kaus kwin_wayland_wrapper[2502]: Mesa version: 24.2.8
2025-02-14T16:15:23.372537+01:00 kaus kwin_wayland_wrapper[2502]: X server version: 1.23.2
2025-02-14T16:15:23.372572+01:00 kaus kwin_wayland_wrapper[2502]: Linux kernel version: 6.8
2025-02-14T16:15:23.372624+01:00 kaus kwin_wayland_wrapper[2502]: Requires strict binding: no
2025-02-14T16:15:23.372653+01:00 kaus kwin_wayland_wrapper[2502]: GLSL shaders: yes
2025-02-14T16:15:23.372686+01:00 kaus kwin_wayland_wrapper[2502]: Texture NPOT support: yes
2025-02-14T16:15:23.372717+01:00 kaus kwin_wayland_wrapper[2502]: Virtual Machine: no
2025-02-14T16:15:23.384230+01:00 kaus kwin_wayland_wrapper[2502]: BlurConfig::instance called after the first use - ignoring
2025-02-14T16:15:23.386218+01:00 kaus kwin_wayland_wrapper[2502]: ZoomConfig::instance called after the first use - ignoring
2025-02-14T16:15:23.386909+01:00 kaus kwin_wayland_wrapper[2502]: WindowViewConfig::instance called after the first use - ignoring
2025-02-14T16:15:23.387691+01:00 kaus kwin_wayland_wrapper[2502]: SlidingPopupsConfig::instance called after the first use - ignoring
2025-02-14T16:15:23.387765+01:00 kaus kwin_wayland_wrapper[2502]: SlideConfig::instance called after the first use - ignoring
2025-02-14T16:15:23.387968+01:00 kaus kwin_wayland_wrapper[2502]: OverviewConfig::instance called after the first use - ignoring
2025-02-14T16:15:23.388367+01:00 kaus kwin_wayland_wrapper[2502]: KscreenConfig::instance called after the first use - ignoring
2025-02-14T16:15:23.388886+01:00 kaus kwin_wayland_wrapper[2502]: DesktopGridConfig::instance called after the first use - ignoring
2025-02-14T16:15:23.489964+01:00 kaus plasmashell[2599]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
do qual podemos ver que o kactivitymanager, por algum motivo não especificado, decide que deve criar uma tela Qt falsa para evitar que ele trave. E isso acontece várias vezes no curso de alguns segundos, até que a situação se estabilize, e não haja mais atividades relacionadas no syslog .
Outro detalhe importante é acrescentado por uma captura das conexões dbus :
date > cap.txt; kscreen-doctor --dpms off; dbus-monitor --profile >> cap.txt
e o conteúdo do arquivo de captura, cap.txt , é:
Fri Feb 14 04:08:49 PM CET 2025
#type timestamp serial sender destination path interface member
# in_reply_to
sig 1739545729.278759 2 org.freedesktop.DBus :1.68 /org/freedesktop/DBus org.freedesktop.DBus NameAcquired
sig 1739545729.278766 4 org.freedesktop.DBus :1.68 /org/freedesktop/DBus org.freedesktop.DBus NameLost
mc 1739545730.964295 280 :1.41 :1.49 /org/freedesktop/portal/desktop org.freedesktop.impl.portal.Background GetAppState
mr 1739545730.965055 239 :1.49 :1.41 280
mc 1739545730.966093 281 :1.41 :1.43 /org/freedesktop/impl/portal/PermissionStore org.freedesktop.impl.portal.PermissionStore Lookup
err 1739545730.966962 71 :1.43 :1.41 281
mc 1739545735.968323 282 :1.41 :1.49 /org/freedesktop/portal/desktop org.freedesktop.impl.portal.Background GetAppState
mr 1739545735.969096 240 :1.49 :1.41 282
mc 1739545735.970145 283 :1.41 :1.43 /org/freedesktop/impl/portal/PermissionStore org.freedesktop.impl.portal.PermissionStore Lookup
err 1739545735.970998 72 :1.43 :1.41 283
sig 1739545740.179599 187 :1.26 <none> /kwinrc org.kde.kconfig.notify ConfigChanged
mc 1739545740.180923 389 :1.21 org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus AddMatch
O horário inicial da captura do dbus , 1739545729, corresponde a sexta-feira, 14 de fevereiro de 2025, 16h08min49s GMT+01:00, que também é a saída do comando date imediatamente antes do comando que desliga o monitor. Vemos que cerca de 11 segundos após o desligamento o kwin envia um sinal de que a configuração mudou, o que presumivelmente é a consequência do kded5 ter criado uma tela Qt falsa. Mas o que exatamente aciona esse comportamento engraçado?
O engraçado é que a mesma configuração funciona perfeitamente em uma sessão X11, ela só quebra em uma sessão Wayland. Mas, apesar disso, não está claro para mim se isso é um bug do Wayland ou do KDE. Eu pesquisei qt.qpa.wayland: Creating a fake screen in order for Qt not to crash , o que leva a duas escassas referências, a mais relevante das quais afirma:
O problema provavelmente está no Wayland ou no DE, pois eles não estão fechando o portal.
(qualquer que seja o portal). Mas aqui também não houve consenso sobre o verdadeiro culpado.
Alguém pode ajudar? Estou perdido, obrigado.
