Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.20 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.20-rc3


** Tags added: kernel-da-key

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1803982

Title:
  reset full-speed USB device number 11 using xhci_hcd

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  After upgrading to 18.10 (from 18.04LTS) I keep receiving random
  resets on the bluetooth keyboard, connected through a bluetooth usb
  dongle. I get them with a frequency of one disconnect every 30-60min.
  Before the upgrade this was not happening.

  The only way to restore the connection is to remove and re-insert the dongle. 
I've tried various models from different manufacturers from BT v2 up to v4 and 
all of them behave the same.
  I've tried to also to increase the default autosuspend from 2 to 30
  echo "30" > /sys/module/usbcore/parameters/autosuspend
  and the frequency of the resets dropped but not disappear. I've tried with 0 
to disable the autosuspend and it was more stable, however it drained the 
battery of the keyboard very quickly.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.10-0ubuntu13.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  bnv        2347 F.... pulseaudio
   /dev/snd/controlC0:  bnv        2347 F.... pulseaudio
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 18.10
  HibernationDevice: RESUME=UUID=e962613c-fc88-4740-8f0a-997838d3c2cf
  InstallationDate: Installed on 2017-11-02 (382 days ago)
  InstallationMedia: Kubuntu 17.10 "Artful Aardvark" - Release amd64 
(20171017.1)
  IwConfig:
   enp0s25   no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: Dell Inc. Precision Tower 5810
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.18.0-11-generic 
root=UUID=4940c5fe-b600-4f27-8586-c6ac06ccea99 ro rd.driver.blacklist=nouveau 
vga=773 quiet
  ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
  RelatedPackageVersions:
   linux-restricted-modules-4.18.0-11-generic N/A
   linux-backports-modules-4.18.0-11-generic  N/A
   linux-firmware                             1.175
  RfKill:
   5: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
  Tags:  cosmic
  Uname: Linux 4.18.0-11-generic x86_64
  UpgradeStatus: Upgraded to cosmic on 2018-10-25 (25 days ago)
  UserGroups: adm cdrom dialout dip docker kvm lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 05/08/2017
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A19
  dmi.board.name: 0K240Y
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 7
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA19:bd05/08/2017:svnDellInc.:pnPrecisionTower5810:pvr:rvnDellInc.:rn0K240Y:rvrA01:cvnDellInc.:ct7:cvr:
  dmi.product.name: Precision Tower 5810
  dmi.product.sku: 0617
  dmi.sys.vendor: Dell Inc.

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