libc6 error makes lightdm to not start, after upgrading Trisquel 10 to 11

Used GUI upgrade wizard with no reported errors. Problem appears after suggested reboot.

$ lsb_release -ds
Trisquel GNU/Linux Aramo (11.0)

$ uname -m
x86_64

$ sudo systemctl status lightdm
× lightdm.service - Light Display Manager
Loaded: loaded (/lib/systemd/system/lightdm.service; indirect; vendor preset: enabled)
Active: failed (Result: exit-code) since Fri 2023-06-23 12:51:11 CEST; 1h 29min ago
Docs: man:lightdm(1)
Process: 5283 ExecStartPre=/bin/sh -c [ "$(basename $(cat /etc/X11/default-display-manager 2>/dev/null))" = "lightdm" ] (code=exited, status=0/SUCCESS)
Process: 5286 ExecStart=/usr/sbin/lightdm (code=exited, status=1/FAILURE)
Main PID: 5286 (code=exited, status=1/FAILURE)
CPU: 506ms

de juny 23 12:51:11 optiplex790 systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE
de juny 23 12:51:11 optiplex790 systemd[1]: lightdm.service: Failed with result 'exit-code'.
de juny 23 12:51:11 optiplex790 systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 5.
de juny 23 12:51:11 optiplex790 systemd[1]: Stopped Light Display Manager.
de juny 23 12:51:11 optiplex790 systemd[1]: lightdm.service: Start request repeated too quickly.
de juny 23 12:51:11 optiplex790 systemd[1]: lightdm.service: Failed with result 'exit-code'.
de juny 23 12:51:11 optiplex790 systemd[1]: Failed to start Light Display Manager.

$ sudo dmesg
[ 0.000000] Linux version 5.15.0-75-generic (name at domain) (gcc (Ubuntu 11.3.0-1ubuntu1~22.04.1) 11.3.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #82+11.0trisquel23 SMP Mon Jun 19 10:49:58 UTC 2023 (Ubuntu 5.15.0-75.82+11.0trisquel23-generic 5.15.99-gnu)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.15.0-75-generic root=UUID=ecafc496-a3da-4dc8-bac1-4921f619d505 ro quiet splash rootflags=noatime fsck.repair=yes fsck.mode=auto vt.handoff=7
(...)
[ 62.826984] show_signal_msg: 348 callbacks suppressed
[ 62.826990] lightdm[3165]: segfault at 0 ip 00007f9afbaca9fa sp 00007fff001dbbb8 error 4 in libc.so.6[7f9afba38000+195000]
[ 62.827005] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 66.283849] lightdm[3206]: segfault at 0 ip 00007fe1ead6f9fa sp 00007ffc7203ee38 error 4 in libc.so.6[7fe1eacdd000+195000]
[ 66.283869] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 68.791818] lightdm[3240]: segfault at 0 ip 00007ffbae2fc9fa sp 00007ffd9b640938 error 4 in libc.so.6[7ffbae26a000+195000]
[ 68.791836] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 70.890853] lightdm[3286]: segfault at 0 ip 00007f2e1e2509fa sp 00007ffd37960788 error 4 in libc.so.6[7f2e1e1be000+195000]
[ 70.890869] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 73.022889] lightdm[3339]: segfault at 0 ip 00007fe06c4b39fa sp 00007ffe9a0a0e28 error 4 in libc.so.6[7fe06c421000+195000]
[ 73.022905] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 75.439540] lightdm[3382]: segfault at 0 ip 00007f4bed9109fa sp 00007ffde788f8e8 error 4 in libc.so.6[7f4bed87e000+195000]
[ 75.439558] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 77.488637] lightdm[4028]: segfault at 0 ip 00007f48d501e9fa sp 00007ffdb4ab2308 error 4 in libc.so.6[7f48d4f8c000+195000]
[ 77.488653] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 79.604228] lightdm[4112]: segfault at 0 ip 00007f014f3b49fa sp 00007ffd8fbda938 error 4 in libc.so.6[7f014f322000+195000]
[ 79.604244] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 81.720517] lightdm[4165]: segfault at 0 ip 00007f7ddc7679fa sp 00007ffc10f0d558 error 4 in libc.so.6[7f7ddc6d5000+195000]
[ 81.720536] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 83.737998] lightdm[4203]: segfault at 0 ip 00007f5b530839fa sp 00007fff95e4e658 error 4 in libc.so.6[7f5b52ff1000+195000]
[ 83.738021] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 85.736650] lightdm[4237]: segfault at 0 ip 00007f0053dc09fa sp 00007ffeefde1028 error 4 in libc.so.6[7f0053d2e000+195000]
[ 85.736668] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 87.702750] lightdm[4278]: segfault at 0 ip 00007f48c51ab9fa sp 00007ffedd9e7c28 error 4 in libc.so.6[7f48c5119000+195000]
[ 87.702765] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 89.700744] lightdm[4403]: segfault at 0 ip 00007fc48926c9fa sp 00007ffc3a2a75d8 error 4 in libc.so.6[7fc4891da000+195000]
[ 89.700761] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83
[ 91.686705] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 91.686709] Bluetooth: BNEP filters: protocol multicast
[ 91.686713] Bluetooth: BNEP socket layer initialized
[ 91.750600] lightdm[4453]: segfault at 0 ip 00007f3e156f19fa sp 00007ffcaa4b3a38 error 4 in libc.so.6[7f3e1565f000+195000]
[ 91.750614] Code: f3 0f 1e fa 66 0f ef c0 66 0f ef c9 66 0f ef d2 66 0f ef db 48 89 f8 48 89 f9 48 81 e1 ff 0f 00 00 48 81 f9 cf 0f 00 00 77 66 0f 6f 20 66 0f 74 e0 66 0f d7 d4 85 d2 74 04 0f bc c2 c3 48 83

Same problem I've seen in other computers, including virtual machines ¿What is the best I can do?