Having similar problem in 16.04 as well, though the reason might be
different.
With everything enabled this is the output of rfkill:
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
5: Toshiba Bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
7: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
When either the switch in System Settings or the Indicator menu is
turned Off Toshiba Bluetooth is soft blocked, hci0 disappears, and the
Indicator icon disappears. When the System Settings switch is On,
Toshiba Bluetooth unblocked, hci0 appears soft blocked, and the
Indicator icon appears with it's menu switch Off. When the Indicator
menu switch is On hci0 is unblocked.
It appears that each switch is grabbing the earliest bluetooth radio to
effect rather than just one.
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to indicator-bluetooth in
Ubuntu.
https://bugs.launchpad.net/bugs/1126108
Title:
Indicator disappears entirely when disabling / turning off bluetooth
Status in indicator-bluetooth package in Ubuntu:
Fix Released
Bug description:
Bug 1116289 made the BT indicator disappear when there is no hardware.
However, with that version I now also have it disappear when my
existing BT hardware is merely disabled. I. e. I disable BT from the
indicator, then it disappears, leaving me no obvious method to turn it
back on again. I can re-enabble it in control-center, and then the
indicator comes back.
I think when it sees no actual BT hardware it ought to check rfkill
whether there is disabled BT hardware:
$ grep -r . /sys/class/rfkill/rfkill0/{type,state,soft,persistent}
/sys/class/rfkill/rfkill0/type:bluetooth
/sys/class/rfkill/rfkill0/state:1
/sys/class/rfkill/rfkill0/soft:0
/sys/class/rfkill/rfkill0/persistent:1
After disabling BT from the indicator, "soft" changes to 1:
$ grep -r . /sys/class/rfkill/rfkill0/{type,state,soft,persistent}
/sys/class/rfkill/rfkill0/type:bluetooth
/sys/class/rfkill/rfkill0/state:0
/sys/class/rfkill/rfkill0/soft:1
/sys/class/rfkill/rfkill0/persistent:1
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: indicator-bluetooth 0.0.6-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-6.13-generic 3.8.0-rc7
Uname: Linux 3.8.0-6-generic x86_64
ApportVersion: 2.8-0ubuntu4
Architecture: amd64
Date: Fri Feb 15 12:08:26 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-02-08 (7 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130207.1)
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: indicator-bluetooth
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/indicator-bluetooth/+bug/1126108/+subscriptions
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