There certainly are Bluetooth errors in the log, and some are kernel related.
I suggest the best thing to do here is to try a newer Ubuntu release like 22.04.1. Because there's a good chance this was a bug in the kernel, Intel firmware, or BlueZ that has already been fixed. ** Summary changed: - bluetooth input freezes for a few second after brief inactivity + [focal] [Intel 8260] bluetooth input freezes for a few second after brief inactivity -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1993516 Title: [focal] [Intel 8260] bluetooth input freezes for a few second after brief inactivity Status in bluez package in Ubuntu: New Bug description: I have a Logitech bluetooth mouse (M650) and keyboard (K380, details in the attached log). I almost never power down the laptop: I suspend and resume it. Sometimes when I resume from suspend everything works flawlessly. Other times, there's a 2-3s "freeze" after just several seconds of input inactivity, during which moving the mouse or pressing keyboard keys gives no response. After 2-3s, all the keys pressed during the freeze suddenly appear on screen. Restarting the bluetooth service, going to airplane mode and back or turning the mouse and keyboard on and off does not help at all. The delay makes using these input devices barely usable. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: bluez 5.53-0ubuntu3.6 ProcVersionSignature: Ubuntu 5.4.0-126.142-generic 5.4.203 Uname: Linux 5.4.0-126-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Oct 19 11:25:13 2022 InstallationDate: Installed on 2017-02-18 (2068 days ago) InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803) InterestingModules: rfcomm bnep btusb bluetooth MachineType: Dell Inc. Latitude E5570 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-126-generic root=UUID=2b559de5-44d4-4f98-a211-a39edbb31bc8 ro quiet splash vt.handoff=7 SourcePackage: bluez UpgradeStatus: Upgraded to focal on 2022-08-02 (77 days ago) dmi.bios.date: 10/02/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.21.6 dmi.board.name: 03MCRF dmi.board.vendor: Dell Inc. dmi.board.version: A09 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.21.6:bd10/02/2019:svnDellInc.:pnLatitudeE5570:pvr:rvnDellInc.:rn03MCRF:rvrA09:cvnDellInc.:ct9:cvr: dmi.product.family: Latitude dmi.product.name: Latitude E5570 dmi.product.sku: 06DF dmi.sys.vendor: Dell Inc. hciconfig: hci0: Type: Primary Bus: USB BD Address: B8:8A:60:C5:C9:BF ACL MTU: 1021:4 SCO MTU: 96:6 UP RUNNING PSCAN ISCAN RX bytes:34304 acl:977 sco:0 events:2580 errors:0 TX bytes:603917 acl:73 sco:0 commands:2473 errors:0 mtime.conffile..etc.bluetooth.main.conf: 2022-10-19T11:24:40.907104 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1993516/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
