Comment 0 for bug 1744712

Sometimes after sleep/resume bluetooth won't reconnect to any device.

I can see this in dmesg:
[13129.890580] Bluetooth: hci0 command 0x0c1a tx timeout

I tried:
1. sudo hciconfig hci0 reset
Can't init device hci0: Connection timed out (110)

2. tried reloading modules:
sudo rmmod btusb
sudo rmmod btrtl
sudo rmmod hci_uart
sudo rmmod btintel
sudo rmmod btbcm btqca
sudo rmmod rfcomm

sleep 1

sudo modprobe btusb btrtl hci_uart btintel btbcm btqca rfcomm

no luck.

3. restart bluetoothd - no luck

Only reboot helps.

Laptop is: Dell XPS 13 9360.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: bluetooth (not installed)
ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
Uname: Linux 4.13.0-25-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Jan 22 12:50:58 2018
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-12-18 (35 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: Dell Inc. XPS 13 9360
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-25-generic.efi.signed root=UUID=e20224ee-6bcd-49a5-b911-a0c129a48da5 ro quiet splash vt.handoff=7
SourcePackage: bluez
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/12/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.5.0
dmi.board.name: 02PG84
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.5.0:bd12/12/2017:svnDellInc.:pnXPS139360:pvr:rvnDellInc.:rn02PG84:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9360
dmi.sys.vendor: Dell Inc.
hciconfig:
 hci0: Type: Primary Bus: USB
  BD Address: 9C:B6:D0:EB:95:A6 ACL MTU: 1024:8 SCO MTU: 50:8
  DOWN
  RX bytes:2301887 acl:127559 sco:0 events:249 errors:0
  TX bytes:4327 acl:47 sco:0 commands:81 errors:0