Pipewire, webcam, and battery
by DavidMcCann from LinuxQuestions.org on (#6PYKC)
It's recently come to light that pipewire can interact with other software and turn on the laptop webcam when it's supposed to be off, with unfortunate results if you are running on battery.
Distrowatch news
The suggested check using fuser may not work as given, as your distro may not call the camera video1; in PCLinuxOX it's apparently video4 for some reason.
The solutions are to disable the camera in the bios and reboot when you need to enable it or to find out how it's connected and tackle it that way, which may not be easy:
PCLinoxOS discussion
Distrowatch news
The suggested check using fuser may not work as given, as your distro may not call the camera video1; in PCLinuxOX it's apparently video4 for some reason.
The solutions are to disable the camera in the bios and reboot when you need to enable it or to find out how it's connected and tackle it that way, which may not be easy:
PCLinoxOS discussion