Thinkpad T495 sporadically crashing upon suspend upon update to F42

Ask Fedora
1

hi,

as of updating to Fedora 42 (or shortly afterwards), my T495 suddenly doesn’t wake upon lid open sometimes - nor does it fully suspend. instead, the display blanks and does not turn off, and the machine overheats. the small red light in the ThinkPad logo doesn’t turn to its usual “snoring” state, either - it stays bright red, as if the machine never slept at all.

this isn’t great! I’m not sure how to troubleshoot it because I can’t exactly run dmesg or anything after the machine has crashed and I have to turn it all the way off. is there anything that could help me resolve this issue?

thanks.

EDIT: notably this also happens when I hit Suspend in GNOME’s menu, not just when I close the laptop. this leads me to believe it probably doesn’t have anything to do with the lid handler and instead has to do with the suspend behavior. I’ve seen it suspend correctly a few times, which is what really boggles my mind.

2

F42 was a red herring. here’s the issue, for those who want to solve it in the future:

I checked journalctl -b-2 (where the -2 means “two boots ago”) and noticed that it was stuck in a loop of enabling the suspend service because a task failed to halt. that task was keybase-redirector, and the issue’s been open since 2022 on it: keybase-redirector is unable to freeze (linux) · Issue #4112 · keybase/keybase-issues · GitHub

I’m not super keen about using Keybase still ever since it got bought out, but I still have to. disabling the root redirector fixes the issue and I’m now able to close my laptop fine.

funny how one process run awry can cause that many issues!