I'm afraid that this is how the bluetoothctl is designed. This tool is a
command-line interface to the bluetoothd and requires it up and running.
It will not quit however when it is not running for a situations where
the daemon might come back online.
Ubuntu does not do anything special here, the bluetoothctl tool is
packaged as is from the upstream.
For Ubuntu this normally should not be a problem because a user is
expected to use {unity,gnome}-system-settings anyway to interact with BT
subsystem. Is there a particular use-case that is failing on this
behavior?
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Touch seeded packages, which is subscribed to bluez in Ubuntu.
https://bugs.launchpad.net/bugs/1565940
Title:
bluetoothctl systematically hangs when there is no bluetooth hardware
Status in bluez package in Ubuntu:
New
Bug description:
On a machine WITH bluetooth hardware, the 'bluetoothctl' command works
correctly.
For example, the command 'bluetoothctl < /dev/null' terminates correctly.
On a machine WITHOUT bluetooth hardware, the 'bluetoothctl' command
systematically hangs.
Even the command 'bluetoothctl < /dev/null' systematically hangs.
$ bluetoothctl &
[1] 6208
$ ps -l $!
F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD
0 T 1001 6208 2525 0 80 0 - 9578 signal pts/1 0:00 bluetoothctl
[1]+ Stopped bluetoothctl
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: bluez 5.35-0ubuntu2
ProcVersionSignature: Ubuntu 4.2.0-34.39-generic 4.2.8-ckt4
Uname: Linux 4.2.0-34-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: X-Cinnamon
Date: Mon Apr 4 20:09:39 2016
InstallationDate: Installed on 2015-07-20 (259 days ago)
InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64
(20150422)
InterestingModules: bluetooth
MachineType: To be filled by O.E.M. To be filled by O.E.M.
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-34-generic.efi.signed
root=UUID=0d11df61-c758-41b1-9ec3-8310bf038b07 ro quiet splash vt.handoff=7
SourcePackage: bluez
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: Upgraded to wily on 2015-10-22 (165 days ago)
dmi.bios.date: 06/26/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2603
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: M5A97 R2.0
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr2603:bd06/26/2015:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97R2.0:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To be filled by O.E.M.
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: To be filled by O.E.M.
hciconfig:
rfkill:
syslog:
avril 03 15:10:45 urbah-sirius systemd[1]: Starting Automatic USB/Bluetooth
printer setup (-devices-pci0000:00-0000:00:12.2-usb5-5\x2d5)...
avril 03 15:10:45 urbah-sirius NetworkManager[986]: <info> Loaded device
plugin: NMBluezManager
(/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
avril 03 15:10:50 urbah-sirius systemd[1]: Started Automatic USB/Bluetooth
printer setup (-devices-pci0000:00-0000:00:12.2-usb5-5\x2d5).
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