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I had bluetooth crash (see logs below). After the crash, I attempted to
restart bluetooth by pressing the On/Off switch in the top-right of the
Bluetooth tab of gnome-control-center (it was set to off). After
pressing the switch, the switch read "On", but the display of Bluetooth
devices still appeared as it does when Bluetooth is off (it read
"Bluetooth Turned Off\nTurn on to connect devices and receive file
transfers.").
I was able to remedy the situation by manually executing `sudo
bluetoothd`. I did this while the above On/Off switch was "Off" and the
Bluetooth device list said Bluetooth was off. After executing, the
Bluetooth device list listed all my Bluetooth devices as expected.
This is with bluetoothd 5.48.
Bluetooth crash logs
```
12:22:15 pulseaudio: (6856.168| 0.576) [pulseaudio] bluez5-util.c: Bluetooth
daemon disappeared
12:22:15 systemd: bluetooth.service: Failed with result 'core-dump'.
12:22:15 systemd: bluetooth.service: Failed with result 'core-dump'.
12:22:15 systemd: bluetooth.service: Main process exited, code=dumped,
status=11/SEGV
12:22:15 kernel: bluetoothd[816]: segfault at 31 ip 0000562f7fa9bea2 sp
00007ffd0d54b720 error 4 in bluetoothd[562f7fa00000+f3000]
10:28:31 kernel: hid-generic 0005:046D:B019.0007: input,hidraw6: BLUETOOTH HID
v0.06 Keyboard [MX Master 2S] on F4:D1:08:9E:7B:85
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
10:28:31 bluetoothd: bt_uhid_send: Invalid argument (22)
```
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-control-center 1:3.28.2-0ubuntu0.18.04.6
Uname: Linux 5.10.0-051000-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.26
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 27 13:00:09 2021
InstallationDate: Installed on 2021-01-04 (295 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: bluez (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic third-party-packages
--
Bluetooth does not turn on via gnome-control-center after bluetooth.service
crash
https://bugs.launchpad.net/bugs/1948990
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