| Summary: | Bluetooth controller unavailable most of the time | ||
|---|---|---|---|
| Product: | [Frameworks and Libraries] frameworks-bluez-qt | Reporter: | tobias.kuendig |
| Component: | general | Assignee: | David Rosca <nowrep> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | i |
| Priority: | NOR | ||
| Version First Reported In: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
I have exactly the same issue and systemd output with: openSUSE Tumbleweed KDE 5.14.2 KDE Frameworks 5.51.0 Qt 5.11.2 I was able to figure out a possible cause for this bug: The bluetooth adapter was missing after waking the laptop up from standby while the power cord was connected. If I put the laptop to sleep, remove the power cord and wake the laptop up again the bluetooth adapter is available. The power cord can now be attached again. If it doesn't show in bluetoothctl list, then this is not issue in bluez-qt. So is the issue that bluetoothctl list shows adapter, but KDE Bluetooth settings doesn't see it, or there is nothing in both bluetoothctl list and KDE Bluetooth settings? (In reply to David Rosca from comment #3) > If it doesn't show in bluetoothctl list, then this is not issue in bluez-qt. > > So is the issue that bluetoothctl list shows adapter, but KDE Bluetooth > settings doesn't see it, or there is nothing in both bluetoothctl list and > KDE Bluetooth settings? In my computer, bluetoothctl list show nothing and KDE bluetooth applet show nothing. It is an iMac, something between laptop and desktop. (In reply to tobias.kuendig from comment #2) > If I put the laptop to sleep, remove the power cord and wake the laptop up > again the bluetooth adapter is available. The power cord can now be attached > again. I just tried your solution. I make the PC sleep and then resume it. Then bluetoothctl list shows my device! And then I restart plasmashell and bluetooth is activited in system tray. So I agree this is an issue in the bluetooth driver/controller, not Qt or KDE. And it is likely related to power management. Sadly, I didn't found any bug tracking system of BlueZ. Should we send the bug report to their mail list? I don't have this issue anymore after a couple of system updates. Bluetooth works fine for two weeks. Maybe some kernel or driver updates have fixed this. openSUSE Tumbleweed 20181214 KDE Plasma 5.14.4 KDE Frameworks 5.52.0 Qt 5.12.0 Kernel 4.19.7 Tobias, can you confirm it is fixed with newer system software? Closing as fixed then. |
I run KDE Neon 5.13.2 and have problems with my bluetooth adapter. The adapter is detected only sometimes. I cannot make out any pattern. It sometimes works after a cold boot, sometimes doesn't. It is unavailable most of the time after waking from suspend. `bluetoothctl list` shows nothing. If the adapter *is* detected, it shows obviously shows up. In the KDE bluetooth adapter settings window the message "no adapter has been found" is displayed. ``` rfkill list 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no ``` ``` systemctl status bluetooth -l ● bluetooth.service - Bluetooth service Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled) Active: active (running) since Fre 2018-06-29 08:48:37 CEST; 28min ago Docs: man:bluetoothd(8) Main PID: 16554 (bluetoothd) Status: "Running" Tasks: 1 Memory: 704.0K CPU: 7ms CGroup: /system.slice/bluetooth.service └─16554 /usr/lib/bluetooth/bluetoothd Jun 29 08:48:37 dell systemd[1]: Stopped Bluetooth service. Jun 29 08:48:37 dell systemd[1]: Starting Bluetooth service... Jun 29 08:48:37 dell bluetoothd[16554]: Bluetooth daemon 5.37 Jun 29 08:48:37 dell bluetoothd[16554]: Unknown key AutoEnable in main.conf Jun 29 08:48:37 dell systemd[1]: Started Bluetooth service. Jun 29 08:48:37 dell bluetoothd[16554]: Starting SDP server Jun 29 08:48:37 dell bluetoothd[16554]: Bluetooth management interface 1.14 initialized ``` ``` lsmod | grep bluetooth bluetooth 548864 16 btrtl,hci_uart,btintel,btqca,bnep,btbcm,rfcomm,btusb ecdh_generic 24576 1 bluetooth ```