Bug 416035 - Bluetooth does not reconnect automatically to a paired device
Summary: Bluetooth does not reconnect automatically to a paired device
Status: RESOLVED UPSTREAM
Alias: None
Product: Bluedevil
Classification: Plasma
Component: general (show other bugs)
Version: 5.17.4
Platform: Neon Linux
: HI normal
Target Milestone: ---
Assignee: David Rosca
URL:
Keywords: usability
: 389368 430520 (view as bug list)
Depends on:
Blocks:
 
Reported: 2020-01-09 09:32 UTC by John van Spaandonk
Modified: 2022-01-23 11:43 UTC (History)
8 users (show)

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Description John van Spaandonk 2020-01-09 09:32:15 UTC
SUMMARY
KDE does not connect automatically to a paired Bluetooth speaker.

STEPS TO REPRODUCE
1. Pair the Bluetooth speaker, set it as default device
2. Connect to it, using the plasmoid menu
3. Switch off notebook
4. Switch on notebook, login to plasma

OBSERVED RESULT
The speaker is visible in the Bluetooth plasmoid, 
but no automatic connection is made, although it is set as the default device


EXPECTED RESULT
I expect the connection to be made automatically as soon as both plasma and Bluetooth speaker are both turned on.

SOFTWARE/OS VERSIONS
See bug properties

ADDITIONAL INFORMATION
If desired I could do some more experiments to narrow down the problem, please tell me what info you need.
BTW: I selected "system tray" as "Component", no idea if this is correct. 
Additional remark: I feel that you cannot expect a normal user to make a useful selection here!
Comment 1 John van Spaandonk 2020-02-05 10:16:50 UTC
I experimented some more: 
Bluetooth ONLY connects to a device automatically if the device is switched on AFTER the laptop has booted.
 
So after boot, bluetooth does not connect to an already-on speaker, even though I configured it to do this. Is this on purpose or is it an oversight? The behaviour is different to other devices that can connect to a Bluetooth speaker.
Comment 2 Nate Graham 2020-12-07 15:48:42 UTC
Can reproduce with my Bluetooth speaker device.
Comment 3 Nate Graham 2020-12-18 19:44:40 UTC
*** Bug 389368 has been marked as a duplicate of this bug. ***
Comment 4 Nate Graham 2020-12-18 19:44:49 UTC
*** Bug 430520 has been marked as a duplicate of this bug. ***
Comment 5 mcadoo.chen 2020-12-20 12:33:37 UTC
Reproduce in 5.19.5. Even click connect in bluetooth interface doesn't work. Only work when I remove and reconnect the bluetooth mouse.
Comment 6 Nicolas Fella 2022-01-22 14:12:56 UTC
FWIW the automatic reconnect is not done by Plasma, it's all handled in lower levels of the stack (i.e. bluez), so I'm inclined to say that this needs to be fixed there
Comment 7 Nate Graham 2022-01-23 00:58:25 UTC
Indeed, right you are.

FWIW It's working perfectly for me on Fedora 35 right now.

The upstream Bluetooth stack lives in the kernel, so I guess bugs should be reported at https://bugzilla.kernel.org/enter_bug.cgi?product=Drivers.
Comment 8 John van Spaandonk 2022-01-23 11:43:01 UTC
I confirm that since using Pipewire this works.