Public bug reported:
Low power mode on the mediatek based BT hardware seems to drop the
ability for the system to identify the controller on wake up. Have to do
a cold power down.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-42-generic 7.0.0-42.42
ProcVersionSignature: Ubuntu 7.0.0-42.42-generic 7.0.14
Uname: Linux 7.0.0-42-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: funkdalrita 5537 F.... wireplumber
/dev/snd/controlC0: funkdalrita 5537 F.... wireplumber
/dev/snd/controlC1: funkdalrita 5537 F.... wireplumber
/dev/snd/seq: funkdalrita 5533 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Fri Oct 30 09:33:03 2026
InstallationDate: Installed on 2026-08-23 (68 days ago)
InstallationMedia: Kubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423)
MachineType: MicroElectronics G760
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-42-generic
root=UUID=5d944778-4690-463a-945f-c8e70ca75b45 ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/11/2025
dmi.bios.release: 10.65
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1065
dmi.board.asset.tag: Default string
dmi.board.name: PRIME B850-PLUS WIFI
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1065:bd06/11/2025:br10.65:svnMicroElectronics:pnG760:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnPRIMEB850-PLUSWIFI:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:sku935270:pfaPowerSpec:
dmi.product.family: PowerSpec
dmi.product.name: G760
dmi.product.sku: 935270
dmi.product.version: 1.0
dmi.sys.vendor: MicroElectronics
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2172595
Title:
Bluetooth controller not found after idle
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