Oftentimes, the keyboard input functionality will suddenly stop working on widgets. I don't know what causes it, but the following apps/widgets will stop receiving any keyboard input: application launcher (the button with functionality resembling what happens when you press the windows key on windows systems), clock/calendar widget, yakuake, while the sticky notes still continue to accept input. Restarting plasmashell doesn't fix it, nor does restarting kwin. Has been happening since several versions ago. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.20.4 KDE Frameworks Version: 5.77.0 Qt Version: 5.15.2
I periodically experience this too. It's very annoying. I have no idea how to trigger it though. I've only noticed it affecting Plasma applets though. When you hit this, does it affect all KDE apps, or just some? Does it affect GTK apps too?
I haven't noticed any GTK app being affected. This only affects widgets as far as I can tell.
Just Plasma applets or some KDE apps too?
I'm not sure which are considered applets and which are considered apps. As far as I can tell it only affects the ones in the description (application launcher, clock/calendar, yakuake). But I don't use many apps or widgets so other things might also be affected. From what I can tell, KSysGuard (KDE app), RStudio (QT app), and SubLime (GTK), which are full windowed apps, are not affected.
Yakuake is an app too. Odd. No idea what to do with this. Are you using Wayland or X11?
This is in X11.
I genuinely have no idea how to triage this. If it was just Plasma applets, I'd send it to plasmashell. But if Yakuake (and only Yakuake) is also affected, then I have no idea, because its input doesn't go through Plasma. Feels like a deeper issue in the input stack somewhere. Sending to plasmashell anyway so people smarter than me can suggest something more intelligent.
Created attachment 138396 [details] Video of input bug
Think that this is perhaps related to returning from sleep mode. At least that's when I think I've seen it. Seen the issue with krunner, application launcher search, and yakuake. Possibly that other plasma applets are affected too. Browser is never affected, for example. Also think it is a duplicate of: https://bugs.kde.org/show_bug.cgi?id=427921 and thus unrelated to wayland/x11
(In reply to Johannes Claesson from comment #9) > Think that this is perhaps related to returning from sleep mode. At least > that's when I think I've seen it. Seen the issue with krunner, application > launcher search, and yakuake. Possibly that other plasma applets are > affected too. Browser is never affected, for example. > > Also think it is a duplicate of: > https://bugs.kde.org/show_bug.cgi?id=427921 > and thus unrelated to wayland/x11 I have a system with sleep and hibernation disabled and still experience this bug.
Did yo by any chance close IBus on a system that had it active by default? If so, this is Bug 417994.
Sorry, just noticed it is indeed a duplicate of 417994. However, in the past it used to happen without ibus too. Haven’t had this happen anymore unless ibus is involved though.
*** This bug has been marked as a duplicate of bug 417994 ***
*** This bug has been marked as a duplicate of bug 428213 ***