KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

pacman41 · 2021-09-05 22:30:23

Strange issue started happening the past few weeks thought it would pass eventually but still lingering. When I close or minimize a window every so often the application will close or minimize but it will leave a transparent screenshot of the application behind. I can still click on icons behind the transparent screenshot but the only way I have found to remove this glitch is to logout and login again.

Anyone else having the same issue?

Last edited by pacman41 (2021-09-05 22:32:36)

2ManyDogs · 2021-09-05 22:32:55

https://bbs.archlinux.org/viewtopic.php?id=269142 ?

pacman41 · 2021-09-06 01:32:13

alt-shift-f12

thanks!

2ManyDogs · 2021-09-06 12:15:53

Please remember to mark your thread [SOLVED] (edit the title of your first post).

pacman41 · 2021-09-06 19:00:03

2ManyDogs wrote:

Please remember to mark your thread [SOLVED] (edit the title of your first post).

The thread is not really solved.

Alt-Shift-F12 just resets the compositor.

seth · 2021-09-06 20:58:48

This thread should actually be closed as duplicate (and you subscribe to the other)
The bug I linked in https://bbs.archlinux.org/viewtopic.php … 4#p1989824 needs to be revolved upstream - there's not much we can do here about it.

pacman41 · 2021-09-06 23:51:45

The Alt-Shift-F12 keys did not correct the problem. It just led me to a black screen. So I ended up finding a write-up on reddit using

Alt - Spacebar

(and typing)

kwin_x11 --replace

I did not try it personally, instead I turned off compositor in settings. My video driver is AMD but this issue seems to be affecting both Nvidia and Intel aswell.

V1del · 2021-09-07 00:35:06

I did never have this issue and can't repro at all. When this happens, what is your output for

glxinfo -B #mesa-demos
 qdbus org.kde.KWin /KWin org.kde.KWin.supportInformation

reading the other thread this does apparently only happen for actively translucent windows, and will only be in effect on changed defaults for that effect (... by default it will only trigger when moving a window), did you change something there?

Last edited by V1del (2021-09-07 00:58:01)

pacman41 · 2021-09-07 02:41:52

V1del wrote:

I did never have this issue and can't repro at all. When this happens, what is your output for
glxinfo -B #mesa-demos
 qdbus org.kde.KWin /KWin org.kde.KWin.supportInformation
reading the other thread this does apparently only happen for actively translucent windows, and will only be in effect on changed defaults for that effect (... by default it will only trigger when moving a window), did you change something there?

Nothing changed other then updates. It is so random but I will try to get an output for you.

It happens both when closing windows and minimizing windows.

seth · 2021-09-07 05:45:38

The Alt-Shift-F12 keys did not correct the problem. It just led me to a black screen

Sure you didn't just accidentally press CTRL+ALt+F12?

The ghost is typically not related to the GPU but the compositor keeps around an EffectWindow (texture of the actual window) and if you want an ongoing animation, that has to stay even when the actual window gets deleted until the animation is done and only then get removed from the stack. The effects get to decide whether its still needed and if only one of the active effects "forgets" (fumbles the animation terminating condition, making hardcoded assumptions etc.) the ghost stays around forever.
This is most likely caused by a single active effect and disabling it will make the issue disappear, so if you can easily reproduce i, disable the active effects one by one until the issue vanishes - then re-enable them one by one to continuously run into offending ones.

pacman41 · 2021-09-07 11:55:10

seth wrote:

The Alt-Shift-F12 keys did not correct the problem. It just led me to a black screen
Sure you didn't just accidentally press CTRL+ALt+F12?

I very well could have hit CTRL+ALT+F12. I had closed my browser so I was going from memory plus was trying a few other suggestions to see what worked. I noticed a wayland update this morning so I turned composite back on and will try and report back with more detail if the problem reoccurs.

Arch Linux

#1 2021-09-05 22:30:23

KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#2 2021-09-05 22:32:55

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#3 2021-09-06 01:32:13

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#4 2021-09-06 12:15:53

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#5 2021-09-06 19:00:03

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#6 2021-09-06 20:58:48

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#7 2021-09-06 23:51:45

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#8 2021-09-07 00:35:06

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#9 2021-09-07 02:41:52

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#10 2021-09-07 05:45:38

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

#11 2021-09-07 11:55:10

Re: KDE Closed/Minimized Applications Leaving Transparent Ghost Behind

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