Bug 426776

Summary: When bluetooth is unavailable, KCM Bluetooth just acts as if Bluetooth is merely disabled
Product: [Applications] systemsettings Reporter: The Feren OS Dev <ferenosdev>
Component: kcm_bluetoothAssignee: David Rosca <nowrep>
Status: RESOLVED FIXED    
Severity: normal CC: plasma-bugs-null
Priority: NOR    
Version First Reported In: 5.19.90   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: https://invent.kde.org/plasma/bluedevil/commit/30df59afd80a3967abff8f013ebbe6aa4512b50b Version Fixed/Implemented In:
Sentry Crash Report:

Description The Feren OS Dev 2020-09-20 15:08:05 UTC 
SUMMARY
The new bluetooth KCM does not indicate that Bluetooth is entirely unavailable on the hardware it's running on, instead merely being stuck on the "Bluetooth is disabled" screen where the button to enable it therefore does absolutely nothing.

STEPS TO REPRODUCE
1. Put KDE neon Unstable in a Virtual Machine that does not support Bluetooth (such as VirtualBox) or any installation with Plasma 5.19.90/5.20
2. Open the Bluetooth KCM

OBSERVED RESULT
The "Bluetooth is disabled" screen shows

EXPECTED RESULT
A "Bluetooth is not available" screen should show

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: KDE neon Unstable 5.19.90
(available in About System)
KDE Plasma Version: 5.19.90
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.0

ADDITIONAL INFORMATION
Maybe the Bluetooth KCM rewriter simply forgot to make this screen a thing?
Comment 1 Nicolas Fella 2020-09-21 02:39:34 UTC 
Git commit 30df59afd80a3967abff8f013ebbe6aa4512b50b by Nicolas Fella.
Committed on 20/09/2020 at 19:31.
Pushed by ngraham into branch 'master'.

Show appropriate message when no bluetooth adapter is available

When bluetooth is blocked the manager doesn't show any adapters. Therefore the message is only shown when the rfkill state is unknown, which is the case when no bluetooth hardware is present.

Depends on https://invent.kde.org/frameworks/bluez-qt/-/merge_requests/5

M  +9    -1    src/kcm/package/contents/ui/Bluetooth.qml

https://invent.kde.org/plasma/bluedevil/commit/30df59afd80a3967abff8f013ebbe6aa4512b50b