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#1 2026-03-03 05:27:33

cdiamond
Member
Registered: 2012-02-01
Posts: 19

[SOLVED] KDE 6.6.1 update - Xwayland problem

Hi all,
after update Plasma to 6.6.1 when I try to launch any X11 application I get this crash message:

           PID: 4770 (Xwayland)
           UID: 1000 (almaz)
           GID: 1000 (almaz)
        Signal: 6 (ABRT)
     Timestamp: Tue 2026-03-03 08:23:05 MSK (4s ago)
  Command Line: /usr/bin/Xwayland :1 -auth /run/user/1000/xauth_etnXJp -listenfd 8 -listenfd 9 -displayfd 128 -wm 195 -rootless -enable-ei-portal
    Executable: /usr/bin/Xwayland
 Control Group: /user.slice/user-1000.slice/user@1000.service/session.slice/plasma-kwin_wayland.service
          Unit: user@1000.service
     User Unit: plasma-kwin_wayland.service
         Slice: user-1000.slice
     Owner UID: 1000 (almaz)
       Boot ID: f37be45d21064921bc496bb827fcaae9
    Machine ID: 1f8c4c3cdf4b4e5894228dfe18c12724
      Hostname: magic
       Storage: /var/lib/systemd/coredump/core.Xwayland.1000.f37be45d21064921bc496bb827fcaae9.4770.1772515385000000.zst (present)
  Size on Disk: 2.2M
       Message: Process 4770 (Xwayland) of user 1000 dumped core.
                
                Stack trace of thread 4770:
                #0  0x00007f1baf8eea2c n/a (libc.so.6 + 0x98a2c)
                #1  0x00007f1baf8941a0 raise (libc.so.6 + 0x3e1a0)
                #2  0x00007f1baf87b5fe abort (libc.so.6 + 0x255fe)
                #3  0x00005611ff4b9d5b n/a (/usr/bin/Xwayland + 0x18bd5b)
                #4  0x00005611ff4ba0af n/a (/usr/bin/Xwayland + 0x18c0af)
                #5  0x00005611ff4b10c4 n/a (/usr/bin/Xwayland + 0x1830c4)
                #6  0x00007f1baf8942d0 n/a (libc.so.6 + 0x3e2d0)
                #7  0x00007f1bac18d230 n/a (libgallium-26.0.1-arch1.1.so + 0x58d230)
                #8  0x00007f1bac06f651 n/a (libgallium-26.0.1-arch1.1.so + 0x46f651)
                #9  0x00007f1bac072684 n/a (libgallium-26.0.1-arch1.1.so + 0x472684)
                #10 0x00007f1babf988d5 n/a (libgallium-26.0.1-arch1.1.so + 0x3988d5)
                #11 0x00005611ff375e4a n/a (/usr/bin/Xwayland + 0x47e4a)
                #12 0x00005611ff387a7f n/a (/usr/bin/Xwayland + 0x59a7f)
                #13 0x00005611ff372d9e n/a (/usr/bin/Xwayland + 0x44d9e)
                #14 0x00005611ff375daa n/a (/usr/bin/Xwayland + 0x47daa)
                #15 0x00005611ff3aded3 n/a (/usr/bin/Xwayland + 0x7fed3)
                #16 0x00005611ff3ae708 n/a (/usr/bin/Xwayland + 0x80708)
                #17 0x00005611ff36ff57 n/a (/usr/bin/Xwayland + 0x41f57)
                #18 0x00005611ff42a4d4 n/a (/usr/bin/Xwayland + 0xfc4d4)
                #19 0x00005611ff35cde0 n/a (/usr/bin/Xwayland + 0x2ede0)
                #20 0x00005611ff365261 n/a (/usr/bin/Xwayland + 0x37261)
                #21 0x00007f1baf75bac6 n/a (libffi.so.8 + 0x7ac6)
                #22 0x00007f1baf75876b n/a (libffi.so.8 + 0x476b)
                #23 0x00007f1baf75b06e ffi_call (libffi.so.8 + 0x706e)
                #24 0x00007f1bafdcf48d n/a (libwayland-client.so.0 + 0x448d)
                #25 0x00007f1bafdd02e9 n/a (libwayland-client.so.0 + 0x52e9)
                #26 0x00007f1bafdd06f3 wl_display_dispatch_queue_pending (libwayland-client.so.0 + 0x56f3)
                #27 0x00005611ff35755c n/a (/usr/bin/Xwayland + 0x2955c)
                #28 0x00005611ff4b98c2 n/a (/usr/bin/Xwayland + 0x18b8c2)
                #29 0x00005611ff3d3fdf n/a (/usr/bin/Xwayland + 0xa5fdf)
                #30 0x00005611ff34b63d n/a (/usr/bin/Xwayland + 0x1d63d)
                #31 0x00007f1baf87d6c1 n/a (libc.so.6 + 0x276c1)
                #32 0x00007f1baf87d7f9 __libc_start_main (libc.so.6 + 0x277f9)
                #33 0x00005611ff34d2b5 n/a (/usr/bin/Xwayland + 0x1f2b5)
                
                Stack trace of thread 4791:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                
                Stack trace of thread 4781:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                
                Stack trace of thread 4789:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                
                Stack trace of thread 4793:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                
                Stack trace of thread 4792:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                
                Stack trace of thread 4795:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                
                Stack trace of thread 4796:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                
                Stack trace of thread 4794:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                
                Stack trace of thread 4797:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                
                Stack trace of thread 4798:
                #0  0x00007f1baf8f4f32 n/a (libc.so.6 + 0x9ef32)
                #1  0x00007f1baf8e939c n/a (libc.so.6 + 0x9339c)
                #2  0x00007f1baf8e968c n/a (libc.so.6 + 0x9368c)
                #3  0x00007f1baf8ebe5e pthread_cond_wait (libc.so.6 + 0x95e5e)
                #4  0x00007f1bac1ec55e n/a (libgallium-26.0.1-arch1.1.so + 0x5ec55e)
                #5  0x00007f1bac1a18fd n/a (libgallium-26.0.1-arch1.1.so + 0x5a18fd)
                #6  0x00007f1bac1ec49d n/a (libgallium-26.0.1-arch1.1.so + 0x5ec49d)
                #7  0x00007f1baf8ec97a n/a (libc.so.6 + 0x9697a)
                #8  0x00007f1baf9702bc n/a (libc.so.6 + 0x11a2bc)
                ELF object binary architecture: AMD x86-64

Last edited by cdiamond (Today 10:37:09)

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#2 2026-03-03 05:50:20

cdiamond
Member
Registered: 2012-02-01
Posts: 19

Re: [SOLVED] KDE 6.6.1 update - Xwayland problem

It seems that login to X session and then login back to Wayland fixed this trouble

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#3 2026-03-03 08:18:50

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 73,365

Re: [SOLVED] KDE 6.6.1 update - Xwayland problem

I guess you just updated mesa?
The re-login was probably more important than the interim X11 session.

Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

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#4 Yesterday 09:47:11

cdiamond
Member
Registered: 2012-02-01
Posts: 19

Re: [SOLVED] KDE 6.6.1 update - Xwayland problem

After update to 6.6.2 it has completely broken. Re-login X11 or Wayland session does not help anymore

Last edited by cdiamond (Yesterday 09:47:54)

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#5 Yesterday 15:10:10

arojas
Developer
From: Spain
Registered: 2011-10-09
Posts: 2,273

Re: [SOLVED] KDE 6.6.1 update - Xwayland problem

What does "completely broken" mean?

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#6 Yesterday 18:01:27

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 73,365

Re: [SOLVED] KDE 6.6.1 update - Xwayland problem

I suppose the backtrace in the OP.
@cdiamond, that's an abort, there's most likely some message in the system journal accompanying it.
Also https://wiki.archlinux.org/title/Debuginfod might help.

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#7 Today 10:40:10

cdiamond
Member
Registered: 2012-02-01
Posts: 19

Re: [SOLVED] KDE 6.6.1 update - Xwayland problem

solved by reinstalling random packages, libraries and applications, mostly related to graphics, have no idea which was the reason

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