Bluetooth devices don't reconnect after sleep.

Bluetooth devices don't reconnect after sleep, or something along those lines.

I have experienced this with a BT audio receiver and BT Keyboard. One way to repro is to switch BT pairing on multi-pairing keyboard, then switch back to Ubuntu. The BT connection state will be very confused, keyboard will not work.

Another way to repro is to get a bluetooth audio receiver, pair it. Let the BT device (or PC?) sleep... now wake up the system. The audio will not play. BT UI slider says disconnected. If you click the slider it will go back to off. If you click it quickly >25 times, no joke, it will reconnect and work.

FYI: Raspbian handles the keyboard fine, have not tested the audio.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: bluetooth (not installed)
ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
Uname: Linux 5.4.0-31-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Jun 10 17:09:06 2020
InstallationDate: Installed on 2019-06-10 (366 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: LENOVO 20HRCTO1WW
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-31-generic root=UUID=df7df2a3-26f4-4fe6-8621-51673ae55b6f ro intel_pstate=disable
SourcePackage: bluez
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/08/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: N1MET61W (1.46 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20HRCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN1MET61W(1.46):bd04/08/2020:svnLENOVO:pn20HRCTO1WW:pvrThinkPadX1Carbon5th:rvnLENOVO:rn20HRCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Carbon 5th
dmi.product.name: 20HRCTO1WW
dmi.product.sku: LENOVO_MT_20HR_BU_Think_FM_ThinkPad X1 Carbon 5th
dmi.product.version: ThinkPad X1 Carbon 5th
dmi.sys.vendor: LENOVO
hciconfig:
 hci0: Type: Primary Bus: USB
  BD Address: 88:B1:11:77:AE:CE ACL MTU: 1021:4 SCO MTU: 96:6
  UP RUNNING PSCAN ISCAN
  RX bytes:6243797 acl:69580 sco:0 events:629809 errors:0
  TX bytes:488355907 acl:570780 sco:0 commands:32574 errors:0