Thanks for the information. I can confirm your system crashed because of the nouveau kernel driver. It's not a very stable driver and does cause a lot of bugs so I would always recommend installing the Nvidia driver instead.
Nov 11 16:15:52 lenovo /usr/libexec/gdm-x-session[2605]: (WW) modeset(0): flip queue failed: Permission denied Nov 11 16:15:52 lenovo /usr/libexec/gdm-x-session[2605]: (WW) modeset(0): Page flip failed: Permission denied Nov 11 16:15:52 lenovo /usr/libexec/gdm-x-session[2605]: (EE) modeset(0): present flip failed Nov 11 16:15:53 lenovo kernel: nouveau 0000:01:00.0: Enabling HDA controller Nov 11 16:15:53 lenovo kernel: nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ PRIVRING ] Nov 11 16:15:53 lenovo /usr/libexec/gdm-x-session[2605]: (EE) Nov 11 16:15:53 lenovo /usr/libexec/gdm-x-session[2605]: Fatal server error: Nov 11 16:15:53 lenovo /usr/libexec/gdm-x-session[2605]: (EE) systemd-logind disappeared (stopped/restarted?) ** Summary changed: - GDM session crashes on suspend on Ubuntu 21.10 + [nouveau] GDM session crashes on suspend on Ubuntu 21.10 ** Tags added: nouveau ** Package changed: gdm3 (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Incomplete => New ** No longer affects: systemd (Ubuntu) ** Summary changed: - [nouveau] GDM session crashes on suspend on Ubuntu 21.10 + [nouveau] System crashes on suspend on Ubuntu 21.10 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1950393 Title: [nouveau] System crashes on suspend on Ubuntu 21.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1950393/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs