[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 [email protected] changed: What|Removed |Added CC||armoire.mountable405@lippie ||ce.anonaddy.me -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Zamundaaa changed: What|Removed |Added CC||[email protected] --- Comment #12 from Zamundaaa --- *** Bug 520724 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Nate Graham changed: What|Removed |Added Version||6.7.0 Fixed/Implemented|| In|| -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Michal Kec (MiK) changed: What|Removed |Added CC||[email protected] -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Vlad Zahorodnii changed: What|Removed |Added Latest Commit|https://invent.kde.org/plas |https://invent.kde.org/plas |ma/kwin/-/commit/3d770c8650 |ma/kwin/-/commit/f038bb7f25 |a70eb2128ee38e89d8360c15b82 |d6445d200e4a7a76d203c07fee7 |191 |2a5 --- Comment #11 from Vlad Zahorodnii --- Git commit f038bb7f25d6445d200e4a7a76d203c07fee72a5 by Vlad Zahorodnii. Committed on 10/06/2026 at 18:13. Pushed by vladz into branch 'Plasma/6.7'. Mark X11 windows ready for painting when we start managing or tracking them Technically, the compositor may see the actual window contents slightly later. To handle such a case, kwin sends a sync request. However, it may happen that a window never becomes ready for painting. It can lead to problems if an effect wants to animate such a window. Effects usually reference windows to prevent from getting deleted, and animations are advanced when the window is visible. In other words, kwin will get stuck with a zombie window. There are definitely many options that we could use to address this issue, but most of them will either be too cumbersome or lead to other regressions. On a second look, if we make a window ready for painting right off the bat, it doesn't look that bad. There are no glitchy pixels or anything like that. So this change pivots for that approach. Co-authored-by: Xaver Hugl (cherry picked from commit 3d770c8650a70eb2128ee38e89d8360c15b82191) M +0-4autotests/integration/dont_crash_aurorae_destroy_deco.cpp M +0-3autotests/integration/effects/translucency_test.cpp M +0-8autotests/integration/window_rules_test.cpp M +0-1autotests/integration/xwayland_dnd_test.cpp M +0-5autotests/integration/xwayland_input_test.cpp M +0-1autotests/integration/xwayland_selection_test.cpp M +3-19 src/x11window.cpp https://invent.kde.org/plasma/kwin/-/commit/f038bb7f25d6445d200e4a7a76d203c07fee72a5 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Vlad Zahorodnii changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED Latest Commit||https://invent.kde.org/plas ||ma/kwin/-/commit/3d770c8650 ||a70eb2128ee38e89d8360c15b82 ||191 --- Comment #10 from Vlad Zahorodnii --- Git commit 3d770c8650a70eb2128ee38e89d8360c15b82191 by Vlad Zahorodnii. Committed on 10/06/2026 at 17:52. Pushed by vladz into branch 'master'. Mark X11 windows ready for painting when we start managing or tracking them Technically, the compositor may see the actual window contents slightly later. To handle such a case, kwin sends a sync request. However, it may happen that a window never becomes ready for painting. It can lead to problems if an effect wants to animate such a window. Effects usually reference windows to prevent from getting deleted, and animations are advanced when the window is visible. In other words, kwin will get stuck with a zombie window. There are definitely many options that we could use to address this issue, but most of them will either be too cumbersome or lead to other regressions. On a second look, if we make a window ready for painting right off the bat, it doesn't look that bad. There are no glitchy pixels or anything like that. So this change pivots for that approach. Co-authored-by: Xaver Hugl M +0-4autotests/integration/dont_crash_aurorae_destroy_deco.cpp M +0-3autotests/integration/effects/translucency_test.cpp M +0-8autotests/integration/window_rules_test.cpp M +0-1autotests/integration/xwayland_dnd_test.cpp M +0-5autotests/integration/xwayland_input_test.cpp M +0-1autotests/integration/xwayland_selection_test.cpp M +3-19 src/x11window.cpp https://invent.kde.org/plasma/kwin/-/commit/3d770c8650a70eb2128ee38e89d8360c15b82191 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Zamundaaa changed: What|Removed |Added CC||[email protected] --- Comment #8 from Zamundaaa --- *** Bug 521208 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Nate Graham changed: What|Removed |Added CC||[email protected] -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Bug Janitor Service changed: What|Removed |Added Status|CONFIRMED |ASSIGNED --- Comment #9 from Bug Janitor Service --- A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/9365 -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 [email protected] changed: What|Removed |Added CC||[email protected] -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Zamundaaa changed: What|Removed |Added CC||[email protected] --- Comment #6 from Zamundaaa --- *** Bug 503615 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Zamundaaa changed: What|Removed |Added CC||[email protected] --- Comment #7 from Zamundaaa --- *** Bug 507541 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 --- Comment #5 from Zamundaaa --- WindowItem::isVisible specifically was false, but in the debug console "hidden" was false for the window, so it wasn't visible because of some other reason. I can try debugging it more thoroughly next week. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 --- Comment #4 from Vlad Zahorodnii --- > that hidden window still gets animated by the open/close and fade desktop > effects The window opening animations try to avoid animating hidden windows. Can you please clarify how the window is hidden exactly? Is it that Window::isHidden() == true or something? -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 Zamundaaa changed: What|Removed |Added Status|REPORTED|CONFIRMED Ever confirmed|0 |1 CC||[email protected] --- Comment #3 from Zamundaaa --- I can replicate this with WinSCP in Wine. It happens like this: - WinSCP opens some window that isn't actually visible. I didn't look deeper into why exactly, but it doesn't matter that much - that hidden window still gets animated by the open/close and fade desktop effects - since the window is hidden, the animation never progresses - until the fade desktop animation completes, it counts as an active fullscreen effect, which blocks other effects from working This continues even when you close the app, since open/close effects keep deleted windows around until their animation completes... which also never happens. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 TraceyC changed: What|Removed |Added Component|wayland-generic |effects-various -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 [email protected] changed: What|Removed |Added Status|NEEDSINFO |REPORTED Resolution|WAITINGFORINFO |--- -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 --- Comment #2 from [email protected] --- (In reply to TraceyC from comment #1) > Thanks for the bug report. We need a few more details so we can look into > this. > > 1. What applications are you using that steal focus? > 2. Can you reproduce this with a brand new user, with the default Breeze > theme and all default settings, except the virtual desktop, focus, animation > and effects settings? > > Thanks Thank you for quick reply. 1. WinSCP seems to be the easiest one to reproduce it with. Another options would be NTE (their launcher kept stealing focus every few minutes), exe version of PuTTY, and similar. 2. I did reproduce it on a newly created user. Apparently, you don't need to get pulled from another virtual desktop - as long as the app calls for focus, it happens. I've been testing thoroughly, changing features one by one, and I've figured out the bug appears after I selected switch animation to Fade. Somehow, that breaks things. When disabled, it returns to normal (until you enable it again). It doesn't seem to be tied with the blur either, it's just one of the things that get affected as a collateral. These are the minimal required settings for bug to occur on a new user (apart from default CachyOS changes): - 2+ virtual desktops, switch effect set to Fade - default blur setting from Breeze is enough to see the change Steps to reproduce: - open WinSCP.exe using "Wine Windows Program Loader" - before it opens, quickly focus another window OR - after it opens, you can try to connect to a nonexistent FTP server, and before it throws an error focus another window (any error message steals focus) - if successful, switching virt. desktops using Ctrl+Meta+arrows or Pager applet should show you all but one virt. desktop is misbehaving. -- You are receiving this mail because: You are watching all bug changes.
[kwin] [Bug 519789] Focus steal across virtual desktops breaks effects and functionality on all but one virtual desktop
https://bugs.kde.org/show_bug.cgi?id=519789 TraceyC changed: What|Removed |Added CC||[email protected] Resolution|--- |WAITINGFORINFO See Also||https://bugs.kde.org/show_b ||ug.cgi?id=511798 Status|REPORTED|NEEDSINFO Version First|unspecified |6.6.4 Reported In|| --- Comment #1 from TraceyC --- Thanks for the bug report. We need a few more details so we can look into this. 1. What applications are you using that steal focus? 2. Can you reproduce this with a brand new user, with the default Breeze theme and all default settings, except the virtual desktop, focus, animation and effects settings? Thanks -- You are receiving this mail because: You are watching all bug changes.
