This appears to be related to a problem with the firmware for the Intel AX200 bluetooth adapter. After installing the linux-firmware package for Ubuntu 21.10, downloaded from https://launchpad.net/ubuntu/+source /linux-firmware/1.198, which contains an updated firmware for that adapter, the problem seems to have gone away. A full power cycle of the computer was required for the firmware to load, not a simple reboot.
I have not done extensive testing since installing the updated linux- firmware package 2 days ago, but I have not since been able to reproduce the problem. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1929326 Title: Bluetooth WH-1000XM3 headphones disconnects and reconnects Status in alsa-driver package in Ubuntu: Confirmed Bug description: From time to time, my Sony WH-1000XM3 Bluetooth connected headphones automatically disconnect, and then a couple of seconds later reconnects. This started happening after updating Ubuntu from 20.10 to 21.04. This never happened even once when using Ubuntu 20.10, and the headphones are not used or paired to any other device. The only device that has had any changes to it is the computer which is now running Ubuntu 21.04. It is currently using a custom kernel from https://kernel.ubuntu.com /~kernel-ppa/mainline/ in an attempt to see if that would mitigate the problem. It did not. The issue started to happen when the Ubuntu 21.04 system was running its default kernel. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: alsa-base 1.0.25+dfsg-0ubuntu7 Uname: Linux 5.12.4-051204-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu65 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: per 2734 F.... pulseaudio /dev/snd/controlC2: per 2734 F.... pulseaudio /dev/snd/controlC0: per 2734 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Sun May 23 12:58:22 2021 InstallationDate: Installed on 2018-11-26 (908 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_Card: WH-1000XM3 Symptom_PulseAudioLog: maj 23 11:33:04 perdator systemd[1473]: pulseaudio.service: Succeeded. maj 23 11:33:14 perdator systemd[1473]: pulseaudio.socket: Succeeded. maj 23 12:35:05 perdator dbus-daemon[1151]: [system] Rejected send message, 0 matched rules; type="method_return", sender=":1.79" (uid=1000 pid=2734 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo") interface="(unset)" member="(unset)" error name="(unset)" requested_reply="0" destination=":1.5" (uid=0 pid=1147 comm="/usr/lib/bluetooth/bluetoothd ") maj 23 12:54:15 perdator dbus-daemon[1151]: [system] Rejected send message, 0 matched rules; type="method_return", sender=":1.79" (uid=1000 pid=2734 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo") interface="(unset)" member="(unset)" error name="(unset)" requested_reply="0" destination=":1.5" (uid=0 pid=1147 comm="/usr/lib/bluetooth/bluetoothd ") Symptom_Type: Sound works for a while, then breaks Title: [WH-1000XM3, playback] fails after a while UpgradeStatus: Upgraded to hirsute on 2021-05-10 (13 days ago) dmi.bios.date: 03/11/2021 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 5843 dmi.board.asset.tag: Default string dmi.board.name: ROG STRIX X470-F GAMING dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5843:bd03/11/2021:br5.17:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGSTRIXX470-FGAMING:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1929326/+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