** Tags added: eoan

** Summary changed:

- bluez regression: Bluetooth fails after resume
+ Realtek btusb dongle vanishes after resume from suspend

** Package changed: bluez (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1856872

Title:
  Realtek btusb dongle vanishes after resume from suspend

Status in linux package in Ubuntu:
  New

Bug description:
  New laptop that is running Ubuntu Mate 19.10, most everything works
  out of the box even bluetooth but bluetooth does not resume after
  suspend.  In fact I am unable to restart it and get it to work after a
  suspend. Wireless resumes and continues to work, just bluetooth fails.
  After suspend the controller and adapter are not found, restarting
  bluetooth.service nor restarting network manger solve the issue.
  After a resume the adapter is not found at all, I have tried to remove
  the module before a suspend and add it back to no avail, the only way
  to get it working is to reboot which is a pain.

  Please let me know what additional data you may need, posting
  information below:

  Chipset is Realtek RTL8822CE, combined wireless and Bluetooth module
  Running Bluez 5.50 package...

  Working on intial Boot:

  lsusb -tv
  /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 10000M
      ID 1d6b:0003 Linux Foundation 3.0 root hub
  /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
      ID 1d6b:0002 Linux Foundation 2.0 root hub
      |__ Port 3: Dev 2, If 0, Class=Video, Driver=uvcvideo, 480M
          ID 0408:5365 Quanta Computer, Inc.
      |__ Port 3: Dev 2, If 1, Class=Video, Driver=uvcvideo, 480M
          ID 0408:5365 Quanta Computer, Inc.
      |__ Port 10: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
          ID 0bda:b00c Realtek Semiconductor Corp.
      |__ Port 10: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
          ID 0bda:b00c Realtek Semiconductor Corp.

  rfkill list
  0: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: no
  1: hci0: Bluetooth
   Soft blocked: no
   Hard blocked: no

  usb-devices
  T:  Bus=01 Lev=01 Prnt=01 Port=09 Cnt=01 Dev#=  3 Spd=12  MxCh= 0
  D:  Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
  P:  Vendor=0bda ProdID=b00c Rev=00.00
  S:  Manufacturer=Realtek
  S:  Product=Bluetooth Radio
  S:  SerialNumber=00e04c000001
  C:  #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=500mA
  I:  If#=0x0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
  I:  If#=0x1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb

  lsusb
  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 001 Device 002: ID 0408:5365 Quanta Computer, Inc. HP TrueVision HD Camera
  Bus 001 Device 003: ID 0bda:b00c Realtek Semiconductor Corp. Bluetooth Radio
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

  dmesg | grep Blue
  [    1.192743] usb 1-10: Product: Bluetooth Radio
  [   11.706607] Bluetooth: Core ver 2.22
  [   11.706620] Bluetooth: HCI device and connection manager initialized
  [   11.706624] Bluetooth: HCI socket layer initialized
  [   11.706626] Bluetooth: L2CAP socket layer initialized
  [   11.706628] Bluetooth: SCO socket layer initialized
  [   11.720229] Bluetooth: hci0: RTL: rtl: examining hci_ver=0a hci_rev=000c 
lmp_ver=0a lmp_subver=8822
  [   11.721252] Bluetooth: hci0: RTL: rom_version status=0 version=3
  [   11.721254] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8822cu_fw.bin
  [   11.722558] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8822cu_config.bin
  [   11.722879] Bluetooth: hci0: RTL: cfg_sz 6, total sz 24866
  [   15.466810] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
  [   15.466812] Bluetooth: BNEP filters: protocol multicast
  [   15.466816] Bluetooth: BNEP socket layer initialized
  [   18.070246] Bluetooth: RFCOMM TTY layer initialized
  [   18.070250] Bluetooth: RFCOMM socket layer initialized
  [   18.070253] Bluetooth: RFCOMM ver 1.11

  After resume:

  lsusb -tv
  /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 10000M
      ID 1d6b:0003 Linux Foundation 3.0 root hub
  /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
      ID 1d6b:0002 Linux Foundation 2.0 root hub
      |__ Port 3: Dev 2, If 0, Class=Video, Driver=uvcvideo, 480M
          ID 0408:5365 Quanta Computer, Inc.
      |__ Port 3: Dev 2, If 1, Class=Video, Driver=uvcvideo, 480M
          ID 0408:5365 Quanta Computer, Inc.

  rfkill list
  1: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: no

  usb-devices

  T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh=12
  D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
  P:  Vendor=1d6b ProdID=0002 Rev=05.03
  S:  Manufacturer=Linux 5.3.0-24-generic xhci-hcd
  S:  Product=xHCI Host Controller
  S:  SerialNumber=0000:00:14.0
  C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
  I:  If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

  T:  Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#=  2 Spd=480 MxCh= 0
  D:  Ver= 2.01 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
  P:  Vendor=0408 ProdID=5365 Rev=00.02
  S:  Manufacturer=SunplusIT Inc
  S:  Product=HP TrueVision HD Camera
  C:  #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=500mA
  I:  If#=0x0 Alt= 0 #EPs= 1 Cls=0e(video) Sub=01 Prot=00 Driver=uvcvideo
  I:  If#=0x1 Alt= 0 #EPs= 0 Cls=0e(video) Sub=02 Prot=00 Driver=uvcvideo

  T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=10000 MxCh= 6
  D:  Ver= 3.10 Cls=09(hub  ) Sub=00 Prot=03 MxPS= 9 #Cfgs=  1
  P:  Vendor=1d6b ProdID=0003 Rev=05.03
  S:  Manufacturer=Linux 5.3.0-24-generic xhci-hcd
  S:  Product=xHCI Host Controller
  S:  SerialNumber=0000:00:14.0
  C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
  I:  If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

  lsusb
  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 001 Device 002: ID 0408:5365 Quanta Computer, Inc. HP TrueVision HD Camera
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

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