New ThinkPads with Ubuntu 24 - reboot on wake

[currentshaft]

I have two brand new Thinkpad laptops, both with fresh 24 LTS installs.

Everything works well, except on about every 1 in 5 wakes from lid-sleep, the machine reboots.

No black screen, no errors, just straight to BIOS POST on lid open.

Checked the most recent messages in /var/log and they stop when the machine is put to sleep and start when the machine is booting up - nothing in between, example:

2024-05-13T08:42:46.635817-07:00 p14s wpa_supplicant[2353]: nl80211: deinit ifname=wlp2s0 disabled_11b_rates=0
2024-05-13T08:42:46.645858-07:00 p14s systemd-sleep[33336]: Performing sleep operation 'suspend'...
2024-05-13T08:42:46.383332-07:00 p14s kernel: Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7
2024-05-13T08:42:46.646367-07:00 p14s kernel: PM: suspend entry (s2idle)
2024-05-13T09:54:35.796563-07:00 p14s kernel: Linux version 6.8.0-31-generic

Not even sure what to try looking at now. Both BIOS settings are at defaults. I doubt it's a hardware issue as it affects two new computers.

Appreciate any insights.

[currentshaft]

Well, looks like I'm going to need to try another operating system. Nothing I do or try seems to have any effect on BOTH laptops rebooting on wake. Never had a single problem like this on Ubuntu 22 ...