Hi there, I am a bit puzzled, the second time today my screen went black and afet a few seconds came up again with the login screen (ubuntu 22.04). I found the following entries in log files:
$ journalctl -b -0 Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: malloc(): unaligned tcache chunk detected Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Backtrace: Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x139) [0x557b5eed3ab9] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 1: /lib/x86_64-linux-gnu/libc.so.6 (__sigaction+0x50) [0x7fc520bcd520] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (pthread_kill+0x12c) [0x7fc520c219fc] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (raise+0x16) [0x7fc520bcd476] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 4: /lib/x86_64-linux-gnu/libc.so.6 (abort+0xd3) [0x7fc520bb37f3] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 5: /lib/x86_64-linux-gnu/libc.so.6 (__fsetlocking+0x426) [0x7fc520c14676] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 6: /lib/x86_64-linux-gnu/libc.so.6 (timer_settime+0x2cc) [0x7fc520c2bcfc] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (malloc+0x33c) [0x7fc520c303dc] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 8: /usr/lib/xorg/Xorg (SetGlyphPicture+0x15d) [0x557b5ee2d11d] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 9: /usr/lib/xorg/Xorg (AddTraps+0x347a) [0x557b5ee358da] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 10: /usr/lib/xorg/Xorg (SendErrorToClient+0x365) [0x557b5ed5d635] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 11: /usr/lib/xorg/Xorg (InitFonts+0x3c4) [0x557b5ed616b4] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 12: /lib/x86_64-linux-gnu/libc.so.6 (__libc_init_first+0x90) [0x7fc520bb4d90] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 13: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0x80) [0x7fc520bb4e40] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) 14: /usr/lib/xorg/Xorg (_start+0x25) [0x557b5ed4a605] Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: Fatal server error: Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Caught signal 6 (Aborted). Server aborting Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: Please consult the The X.Org Foundation support Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: at http://wiki.x.org Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: for help. Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Please also check the log file at "/home/kurella/.local/share/xorg/Xorg.0.log" for additional information. Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (II) AIGLX: Suspending AIGLX clients for VT switch Apr 09 15:40:09 DEBER54-LXL006 /usr/libexec/gdm-x-session[55646]: (EE) Server terminated with error (1). Closing log file. … followed by many loglines from shutdown and reboot $ less /home/kurella/.local/share/xorg/Xorg.0.log.old [ 22758.826] (EE) event10 - HID 046a:0023: client bug: event processing lagging behind by 29ms, your system is too slow [ 23062.725] (EE) [ 23062.725] (EE) Backtrace: [ 23062.725] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x139) [0x557b5eed3ab9] [ 23062.726] (EE) 1: /lib/x86_64-linux-gnu/libc.so.6 (__sigaction+0x50) [0x7fc520bcd520] [ 23062.727] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (pthread_kill+0x12c) [0x7fc520c219fc] [ 23062.728] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (raise+0x16) [0x7fc520bcd476] [ 23062.729] (EE) 4: /lib/x86_64-linux-gnu/libc.so.6 (abort+0xd3) [0x7fc520bb37f3] [ 23062.730] (EE) 5: /lib/x86_64-linux-gnu/libc.so.6 (__fsetlocking+0x426) [0x7fc520c14676] [ 23062.730] (EE) 6: /lib/x86_64-linux-gnu/libc.so.6 (timer_settime+0x2cc) [0x7fc520c2bcfc] [ 23062.731] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (malloc+0x33c) [0x7fc520c303dc] [ 23062.731] (EE) 8: /usr/lib/xorg/Xorg (SetGlyphPicture+0x15d) [0x557b5ee2d11d] [ 23062.731] (EE) 9: /usr/lib/xorg/Xorg (AddTraps+0x347a) [0x557b5ee358da] [ 23062.731] (EE) 10: /usr/lib/xorg/Xorg (SendErrorToClient+0x365) [0x557b5ed5d635] [ 23062.732] (EE) 11: /usr/lib/xorg/Xorg (InitFonts+0x3c4) [0x557b5ed616b4] [ 23062.732] (EE) 12: /lib/x86_64-linux-gnu/libc.so.6 (__libc_init_first+0x90) [0x7fc520bb4d90] [ 23062.733] (EE) 13: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0x80) [0x7fc520bb4e40] [ 23062.733] (EE) 14: /usr/lib/xorg/Xorg (_start+0x25) [0x557b5ed4a605] [ 23062.733] (EE) [ 23062.733] (EE) Fatal server error: [ 23062.733] (EE) Caught signal 6 (Aborted). Server aborting [ 23062.733] (EE) [ 23062.733] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 23062.733] (EE) Please also check the log file at "/home/kurella/.local/share/xorg/Xorg.0.log" for additional information. [ 23062.733] (EE) [ 23062.733] (II) AIGLX: Suspending AIGLX clients for VT switch [ 23062.778] (EE) Server terminated with error (1). Closing log file. It asked me to contact you, so here I am. Any idea what this is about? Jan
