Dell Latitude 7480 poweroff by itself

English Hardware
1

Hi,

I’ve recently gotten Dell Latitude 7480 with Ubuntu configured. I’ve formatted it with OpenSuse Tumbleweed, as I’ve been using this distro for the past 1 year. Great experience.

However, I’ve a weird issue with my laptop, that it will poweroff by itself all of sudden.

I’ve tried to read the system log from

journalctl --all

, but couldn’t see any error from the log.

It would be great if anyone can provide any help on troubleshooting the issue. Please let me know any information that I need to provide.

P/s: I’m new here in this forum. So if I’ve posted in the wrong place, please let me know. And thanks for the patience. :slight_smile:

1 Like
2

My first thoughts are to check that it is not overheating for some reason.

3

This might be useful to you
https://fossbytes.com/how-to-monitor-system-temperature-in-linux-gui-based-temperature-monitoring-tool/

4

I’m not doing any heavy processing stuff. I’ll try to keep track the CPU temperature anyway, and see how things go.

The weird thing is that, it won’t have the symptoms if I didn’t listen to music or watching vimeo. It will just work fine throughout the day without issue.

Thanks for your reply :smiley: I will update after my laptop starting shutting down again.

5

I have found the root cause for this. This issue only happen whenever I have headphone jack plugged in, and the laptop is running on battery.

It is caused by the power management (TLP). I’ve found the thread in ubuntu the resolve this issue by disable the power management for audio.

https://askubuntu.com/questions/867849/16-04-laptop-cuts-power-when-headphones-were-plugged-in

1 Like
6

Thanks for the update. I don’t use tlp on my laptops, but this might be helpful to others who come searching.

7

I’ve recently gotten Dell Latitude 7480 with Ubuntu configured. I’ve formatted it with OpenSuse Tumbleweed, as I’ve been using this distro for the past 1 year. Great experience. for more info. click here

Thanks !!!