systemd-logind failed to idle channel 2 - kernel panic

[Vitali Müller]

Hello,

I have a Thinkpad T580 with Ubuntu 20.04.

After the following (regular) update

Install: linux-modules-extra-5.4.0-105-generic:amd64 (5.4.0-105.119, automatic), linux-headers-5.4.0-105:amd64 (5.4.0-105.119, automatic), linux-modules-5.4.0-105-generic:amd64 (5.4.0-105.119, automatic), linux-headers-5.4.0-105-generic:amd64 (5.4.0-105.119, automatic), linux-image-5.4.0-105-generic:amd64 (5.4.0-105.119, automatic)
Upgrade: linux-headers-generic:amd64 (5.4.0.104.108, 5.4.0.105.109), linux-image-generic:amd64 (5.4.0.104.108, 5.4.0.105.109), linux-generic:amd64 (5.4.0.104.108, 5.4.0.105.109)

my system started to freeze 1..10 second after login.

I am able to log in into the console - without a freeze. However, I receive a freeze / kernel panic when I start to reboot. Screenshot attached.

When I blacklist the nouveau driver, the system works fine.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ville Nummela (vigejolla)]

Thinkpad P52s here. Same symptoms. Blacklisting nouveau indeed helps.