https://bugs.kde.org/show_bug.cgi?id=501792
Bug ID: 501792
Summary: Webcam LED permanently turned on without usage (only
when plasmashell is running)
Classification: Plasma
Product: plasmashell
Version: 6.3.3
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: pri...@jdrabner.eu
CC: k...@davidedmundson.co.uk
Target Milestone: 1.0
SUMMARY
(It was suggested on the Manjaro forums I post this as a bug report here, see
original topic:
https://forum.manjaro.org/t/plasma-related-webcam-led-permanently-turned-on-without-usage/175870
)
Since the latest stable update, I have a bit of an unsettling issue:
My webcam’s LED is permanently on after reboot.
v4l2-ctl --list-devices
Microsoft® LifeCam Studio(TM): (usb-0000:02:00.0-5):
/dev/video0
/dev/video1
/dev/media0
Checking lsof and fuser shows none of these are actually being used, so there
is nothing nefarious going on.
But still, very unsettling.
One way I found to turn off the cam’s LED is to un- and re-plug it.
That will make the LED flash shortly while it’s being “recognized” but then
turn off. Which is what used to happen upon startup, but since the recent
update the LED will no longer turn off on its own after it turns on during
startup.
Another way to turn off the LED - and this is the reason I put this into the
KDE Plasma section - is to kill plasmashell. A killall plasmashell will turn
the LED off (but also plasma is gone obviously) and a plasmashell --replace
will turn it back on permanently.
I did not install anything recently that would be audio/video/webcam related,
so I can only guess one of the packages updated with the recent (18th March)
update for Manjaro is responsible, likely somehow related to Plasma or one of
its widgets as killing that "solves" the issue.
OBSERVED RESULT
See summary.
EXPECTED RESULT
The LED should not be on permanently after plasmashell starts, only blinking
shortly (while "detecting/activating" the device) and then be off unless
actively used.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro Linux x86_64, 6.12.19-1-MANJARO
KDE Plasma Version: 6.33
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