Reactivate Bluetooth after sleep

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,
1

After sleep Bluetooth disappears in Panel and settings. sudo systemctl restart bluetooth gives no errors but it still is not there.

I hate to have to do hard resets everytime but that seems to alleviate the problem.

How do I tell KDE Settings to have Bluetooth back again?Ltd CSR8510


Operating System: Fedora Linux 43
KDE Plasma Version: 6.6.4
KDE Frameworks Version: 6.25.0
Qt Version: 6.10.3
Kernel Version: 6.19.14-200.fc43.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-7700K CPU @ 4.20GHz
Memory: 16 GiB of RAM (15.6 GiB usable)
Graphics Processor: Quadro RTX 4000
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: Z170X-Gaming 7
2

have you found anything in the logs to indicate why it is failing?

this is the built in bluetooth on the m/b?

3

What is probably happening is that the Bluetooth kernel module, is not being reloaded upon resume. Or bluetoothctl can’t properly restart. This sort of thing can happen on some systems, and not specifically bluetooth. There are ways to safely unload or turn off a device before sleep, and then restart it on resume.

This may be more distro-specific, but something like this might be worth investigating:

But there are numerous different ways to do this. Not sure which is appropriate.

4

I guess this is good news:

$ bluetoothctl
[NEW] Media /org/bluez/hci0 
        SupportedUUIDs: 0000110a-0000-1000-8000-00805f9b34fb
        SupportedUUIDs: 0000110b-0000-1000-8000-00805f9b34fb
Agent registered
hci0 new_settings: powered bondable ssp br/edr le secure-conn 
[CHG] Controller 00:1A:7D:DA:71:13 Pairable: yes
[CHG] Controller 00:1A:7D:DA:71:13 Discovering: yes

Apparently the dongle is a Ltd CSR8510

As this is Fedora 43 distro I crossposted this there are well. Bluetooth stops working after returning from sleep - Fedora Discussion

(its a bit like watching a ping-pong match… :laughing:)