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#1 Today 07:17:32
- boarim
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- Registered: 2022-05-28
- Posts: 21
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ThinkPad T400s randomly reboots when waking up from suspend
I have this issue for quite a while now, but never managed to find the root cause. I don’t really know where to look for to be honest. The laptop is a ThinkPad T400s running Libreboot, and the linux-hardened kernel from the official repositories. I don’t have a swap partition since I have more than enough RAM (8GB) and I am in a Wayland session (sway).
When I close the lid, my laptop goes to suspend mode (not hibernation). When I re-open the lid, from time to time, the screen stays black for few seconds, and then the PC automatically reboots. It’s quite annoying, especially at work, since it appears to be random.
I have searched the wiki, but I couldn’t find a relevant section about my problem.
What should I look for first? Libreboot issue? Kernel issue?
Simplicity is the ultimate sophistication. — Leonardo da Vinci (1452–1519)
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#2 Today 08:06:38
- seth
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- From: Don't DM me only for attention
- Registered: 2012-09-03
- Posts: 73,680
Re: ThinkPad T400s randomly reboots when waking up from suspend
PC automatically reboots
* overheated (unlikely)
* underpowered (more likely)
* broken CPU
* bad RAM
* ACPI issue (I assume you're not dual booting, but could indeed be libreboot)
There's probably no journal coverage after the wakeup, but for a general oversight please post your complete system journal for and affected boot, eg.
sudo journalctl -b -1 | curl -F 'file=@-' 0x0.st for the previous ("-1") one.
If there's HW issues they *might* show up as MCE errors in the journal of the subsequent reboot.
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