https://bugs.kde.org/show_bug.cgi?id=428108
Bug ID: 428108
Summary: Bluetooth management from login and lock screens
Product: plasmashell
Version: 5.18.5
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: k...@davidedmundson.co.uk
Reporter: andronon...@gmail.com
CC: plasma-b...@kde.org
Target Milestone: 1.0
I have a bluetooth headset that was already paired from my PC user account.
When I power on the headset, it automatically connects to my PC if PC was the
last device it was connected to. Headset has a sound indication of
connection/disconnection.
The problem is that if I turn on the headset right after PC boot, headset
automatically connects to PC even before login to user account from SDDM.
What's even worse is that you can't disconnect the headset from login screen to
connect it to another device (imagine if you're not the user and you don't know
the password but want to use headset paired to this PC). Connection status is
not displayed either, so it may be not obvious to which device headset is
connected right now. After login, however, headset automatically disconnects
for some reason and not reconnects again.
Same applies to lock screen too - you can't see connection status and
disconnect the headset if you're not the user and don't know the password.
All said, there are 3 problems with bluetooth management from login and lock
screens:
1. Bluetooth device can be autoconnected from login screen before login to user
account and from lock screen
2. Bluetooth device connection status is not displayed on login and lock
screens
3. Bluetooth device can't be disconnected from login and lock screens
Besides, I don't know how Bluetooth manages keys, but isn't the autoconnection
before login a vulnerability?
Kubuntu 20.04.1 LTS with Plasma 5.18.5.
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