kwin problems ?


Trying out Manjaro , so fresh install

sometimes a program crash and can't re-open again , I execute it , icon appear (like opening the program ) and then it closes

Looking at logs I can see that every time I close a window and when a program crash (and cant re-open it) it give me the same log

qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 47645, resource id: 100663341, major code: 18 (ChangeProperty), minor code: 0

qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 24886, resource id: 38685682, major code: 3 (GetWindowAttributes), minor code: 0

qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 43446, resource id: 38687686, major code: 2 (ChangeWindowAttributes), minor code: 0

and it repeats again and again when close every window or trying to re-open a crashed app

I got 99 problems, but kwin aint one.

So lets start with basics:

Updated with system info , any log in specific ? thanks

  • Which ISO did you use to install from?
  • Is your system up-to-date?
  • Have you rebooted since you last updated? I get those errors when some parts of plasma are at different versions than other parts.

ok , didn't reboot since last update , omw

what do you mean with wich ISO ? , the one from the download page (

-- update --

did the reboot but same logs , when open and close folders

if I open and then close VLC player then I can't reopen

qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 24360, resource id: 4194431, major code: 18 (ChangeProperty), minor code: 0

kde.dataengine.mpris: "org.mpris.MediaPlayer2.vlc.instance3853" does not implement org.freedesktop.DBus.Properties correctly Error message was "org.freedesktop.DBus.Error.NoReply" "Message recipient disconnected from message bus without replying"

kde.dataengine.mpris: Failed to find working MPRIS2 interface for "org.mpris.MediaPlayer2.vlc.instance3853"

They aren't related, vlc is just buggy. First hit doing a forum search

Don't worry about the kwin messages, they're informational and kwin spits an error everytime a gentle breeze blows by.

Thanks for the reply !

I just want to check if I got something wrong because the web browser (chrome,firefox and brave) make the fans at maximum speed when scrolling (and CPU (htop) ) , and that log is the only one I found so far (learning on Manjaro) coming from Debian and the performance was better so I think I might have something miss configured or not right

thanks for the messages <3

Try switching to kernel 5.5 or 4.19.

Do I have to downgrade/upgrade (programs versions) or do something else apart from installing the other kernel version? txn

You need to be fully up to date before installing anything.

Please be aware that outside of very particular circumstances and knowledge-level you should pretty much only use mhwd/manjaro-settings-manager for any driver or kernel change.

airtight , thanks , for the reply's , going to test with the 5.5 and 4.19

didn't find much difference between 5.5 or 4.19 :confused: haven't test that much but going to check if I can find another sign , also i get the same log errors

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