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rickysarraf / laptop-mode-tools

Power Savings tool for Linux
https://www.researchut.com/tags/laptop-mode-tools/
GNU General Public License v2.0
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Laptop Mode Tools turns on both front and back camera LEDs when battery is plugged in #198

Closed JeanSchoeller closed 1 year ago

JeanSchoeller commented 1 year ago

When the battery is plugged in, the cameras LED of my laptop are turned on.

Specs:

Laptop: Surface Pro 5 Desktop environment: Hyprland Linux kernel: linux-surface Distribution: Arch

Steps to reproduce the behavior: Install laptop-mode-tools from pacman Enable laptop-mode-tools services Both camera become enabled when the battery is plugged in. Disabling the services removes this behavior.

rickysarraf commented 1 year ago

When the battery is plugged in, the cameras LED of my laptop are turned on.

Battery plugged in ? Or the other way around, when AC plugged in ?

Is there nothing erratic reported in the kernel logs, worth mentioning here ? I don't have the hardware so you'll have to help debug this issue.

We don't have any specific module for camera so my guess is that it is the runtime-pm subsystem triggering in power saving, and having issues with it. But this is just a guess.

How is the camera device enumerated under sysfs ?

JeanSchoeller commented 1 year ago

This has been resolved. Disabling runtime-pm fixed it. Thank you. For info, the issue was when the AC was plugged in, there was no dmesg related to this when plugging it in.