Ubuntu
linux package

[Cambridge Silicon Radio] Bluetooth fails to reconnect after waking from sleep on 20.10

Bug #1901465 reported by Tessa on 2020-10-26

This bug report is a duplicate of: Bug #1246981: Bluetooth devices fail to re-connect after sleep.. Edit Remove

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	bluez (Ubuntu)	New	Undecided	Unassigned
	linux (Ubuntu)	New	Undecided	Unassigned

Bug Description

After upgrading to 20.10, my mouse either takes an extraordinarily long time to reconnect (2+m), or it never reconnects until I unplug and replug my usb bluetooth dongle. It was slow to reconnect on 20.04 (10-30s), but it seems pretty much broken on 20.10.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: bluez 5.55-0ubuntu1
ProcVersionSignature: Ubuntu 5.8.0-25.26-lowlatency 5.8.14
Uname: Linux 5.8.0-25-lowlatency x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Oct 25 19:32:46 2020
InstallationDate: Installed on 2020-07-15 (103 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: ASUS All Series
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_13qyk7@/vmlinuz-5.8.0-25-lowlatency root=ZFS=rpool/ROOT/ubuntu_13qyk7 ro intel_iommu=on nvidia-drm.modeset=1 quiet splash vt.handoff=1
SourcePackage: bluez
UpgradeStatus: Upgraded to groovy on 2020-10-24 (2 days ago)
dmi.bios.date: 04/18/2018
dmi.bios.release: 4.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3503
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: GRYPHON Z97
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3503:bd04/18/2018:br4.6:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnGRYPHONZ97:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: ASUS MB
dmi.product.name: All Series
dmi.product.sku: All
dmi.product.version: System Version
dmi.sys.vendor: ASUS
hciconfig:
hci0: Type: Primary Bus: USB
  BD Address: 00:1A:7D:DA:71:0C ACL MTU: 310:10 SCO MTU: 64:8
  UP RUNNING PSCAN
  RX bytes:103048 acl:4561 sco:0 events:437 errors:0
  TX bytes:3727 acl:71 sco:0 commands:62 errors:0
rfkill:
2: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no

Tags:

Revision history for this message

Tessa (unit3) wrote on 2020-10-26:

CurrentDmesg.txt Edit (110.4 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (2.3 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (12.4 KiB, text/plain; charset="utf-8")
Lspci-vt.txt Edit (1.2 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (1020 bytes, text/plain; charset="utf-8")
Lsusb-t.txt Edit (1.6 KiB, text/plain; charset="utf-8")
Lsusb-v.txt Edit (113.1 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (10.5 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.3 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (115 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (5.7 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (9.1 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (231.7 KiB, text/plain; charset="utf-8")
acpidump.txt Edit (459.6 KiB, text/plain; charset="utf-8")
getfacl.txt Edit (158 bytes, text/plain; charset="utf-8")
syslog.txt Edit (29.8 KiB, text/plain; charset="utf-8")

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2020-10-26:

Assuming the issue is not hardware-specific, we can use bug 1883028 for now.

summary:

- bluetooth fails to reconnect after waking from sleep on 20.10
+ [Cambridge Silicon Radio] Bluetooth fails to reconnect after waking from
+ sleep on 20.10