[ 1947.636982] mei_me 0000:00:16.0: less data available than length=00000006
[64098.805141] mei_me 0000:00:16.0: hbm: properties response: wrong status = 1 CLIENT_NOT_FOUND
[64098.085142] mei 0000:00:16.0: mei_irq_read_handler ret = -71.
and it locks up. I have to turn it off with the power switch. Then it reboots fine. Any ideas for a fix?
I think those two drivers mei and mei_me are the culprits.
Try blacklisting them by creating a mei.conf file in /etc/modprobe.d folder (you need root rights to create a new file in that folder) with the following contents
After that perform a sudo update-initramfs -u and restart.
The problem should now be gone.