478223 2023-12-07 16:40:04 +0000 Window previews and window screen sharing are flipped vertically 2024-02-15 14:30:46 +0000 1 1 4 Plasma kwin wayland-generic master Fedora RPMs Linux RESOLVED FIXED qt6, wayland-only NOR normal --- 1 ales.astone kwin-bugs-null ahiemstra aleixpol chriserizo kdebug3rep0rt.lwyfo matt.fagnani me nate vlad.zahorodnii xaver.hugl https://invent.kde.org/plasma/kwin/-/commit/1ce25f713787abdc60003bacd14e48ecaef61ea3 6.0 0 oldest_to_newest 2271950 0 ales.astone 2023-12-07 16:40:04 +0000 When running Plasma 6 beta in KVM with Virtio video and no 3d acceleration the window previews in the taskbar are mirrored vertically, and likewise sharing window contents with pipewire is also mirrored vertically STEPS TO REPRODUCE Create a KVM with ``` <video> <model type="virtio" heads="1" primary="yes"> <acceleration accel3d="no"/> </model> <address type="pci" domain="0x0000" bus="0x00" slot="0x01" function="0x0"/> </video> ``` SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Fedora KDE Rawhide (available in About System) KDE Plasma Version: 5.90.0 KDE Frameworks Version: 5.246.0 Qt Version: 6.6.1 ADDITIONAL INFORMATION This probably affects real hardware too when using llvmpipe or generally memfd-based pipewire capture. 2272001 1 ales.astone 2023-12-07 20:09:16 +0000 @Nate this is definitely in the kwin wayland backend/screencast plugin, that's why i assigned it to kwin. Unfortunately there's no component in the list that expresses that... But whatever can get the right people to look into it works, i suppose. See also: https://invent.kde.org/plasma/kwin/-/merge_requests/3611 2285666 2 fanzhuyifan 2024-02-03 18:23:20 +0000 *** Bug 480787 has been marked as a duplicate of this bug. *** 2288795 3 chriserizo 2024-02-14 22:57:41 +0000 Can confirm this also happens in Nvidia GPUs running the latest stable branch propietary driver (535) Some users have reported that the latest beta release (550) fixes this issue. 2288890 4 bug-janitor 2024-02-15 08:58:40 +0000 A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/5204 2288931 5 ales.astone 2024-02-15 13:09:02 +0000 *** Bug 478067 has been marked as a duplicate of this bug. *** 2288952 6 vlad.zahorodnii 2024-02-15 14:05:48 +0000 Git commit 3388b7643c1e7e6299d98dab9c485b6ae76e8bd0 by Vlad Zahorodnii. Committed on 15/02/2024 at 13:54. Pushed by vladz into branch 'master'. plugins/screencast: Fix window screencasts being vertically mirrored with memfd WindowScreenCastSource::render(GLFramebuffer) renders windows with the y axis flipped, but the offscreen has no FlipY flag set. M +5 -8 src/plugins/screencast/windowscreencastsource.cpp https://invent.kde.org/plasma/kwin/-/commit/3388b7643c1e7e6299d98dab9c485b6ae76e8bd0 2288955 7 vlad.zahorodnii 2024-02-15 14:26:12 +0000 Git commit 1ce25f713787abdc60003bacd14e48ecaef61ea3 by Vlad Zahorodnii. Committed on 15/02/2024 at 14:18. Pushed by vladz into branch 'Plasma/6.0'. plugins/screencast: Fix window screencasts being vertically mirrored with memfd WindowScreenCastSource::render(GLFramebuffer) renders windows with the y axis flipped, but the offscreen has no FlipY flag set. (cherry picked from commit 3388b7643c1e7e6299d98dab9c485b6ae76e8bd0) M +5 -8 src/plugins/screencast/windowscreencastsource.cpp https://invent.kde.org/plasma/kwin/-/commit/1ce25f713787abdc60003bacd14e48ecaef61ea3