Oryx Pro system freeze on shutdown

[ForeverWintr]

• Model: oryp10
• BIOS version: 2022-09-26_aa797d2
• EC version: Not flashed separately
• OS: Ubuntu 22.04
• Kernel: 5.15.0-58-generic

Often when attempting to power off the computer, the system freezes and I have to force it to shutdown (e.g., using sysrq REISUB). Upon rebooting, I see the following error message when running journalctl -b -1 -r :

nvidia-modeset: ERROR: GPU:0: Error while waiting for GPU progress: 0x0000c67d:0 2:0:4048:4040

This happens maybe 70% of the time when I attempt to shut down.

Steps to reproduce

Attempt to power off or reboot the machine from the gui, or using sudo shutdown in the terminal.

Or, the same thing seems to happen if I switch TTYs, e.g., ctrl+alt+f3.

Expected behavior

The computer should shut down cleanly.

Actual behavior

The entire system freezes. The mouse cursor doesn't move, and the only keyboard input that I've found to have an effect is the magic sysrq keys.

Additional info

I'm using the 5.15.0-58-generic kernel rather than 6.0.6-76060006 that comes with the system76 driver, because I had frequent freezes while using the latter kernel. System76 support suggested waiting for a kernel update.