Public bug reported:
The mute button LED works correctly on Windows but does not
respond on Linux.
Hardware:
- Model: HP Pavilion Laptop 15-cs3xxx
- Subsystem ID: 0x103c86e3
- Codec: Realtek ALC295
- Kernel: 7.0.0-22-generic (Kubuntu 26.04)
The hda::mute LED is visible in /sys/class/leds/ but writing
to brightness has no effect. No COEF registers respond to
hda-verb commands. The subsystem ID 0x103c86e3 is not present
in patch_realtek.c.
A quirk similar to ALC295_FIXUP_HP_MUTE_LED_COEFBIT11 may be
needed for this subsystem ID.D
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-22-generic 7.0.0-22.22
ProcVersionSignature: Ubuntu 7.0.0-22.22-generic 7.0.0
Uname: Linux 7.0.0-22-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: antonio 1819 F.... wireplumber
/dev/snd/controlC0: antonio 1819 F.... wireplumber
/dev/snd/seq: antonio 1817 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Fri Jun 5 12:06:24 2026
InstallationDate: Installed on 2026-05-19 (17 days ago)
InstallationMedia: Kubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423)
Lsusb:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 04f2:b634 Chicony Electronics Co., Ltd HP Wide Vision
FHD Camera
Bus 001 Device 003: ID 8087:0aaa Intel Corp. Bluetooth 9460/9560 Jefferson
Peak (JfP)
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
MachineType: HP HP Pavilion Laptop 15-cs3xxx
ProcFB:
0 i915drmfb
1 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-22-generic
root=UUID=f6336a40-bf4f-43f2-ab94-33cf9429e187 ro quiet splash pcie_aspm=off
nvidia-drm.modeset=1
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: 08/23/2024
dmi.bios.release: 15.23
dmi.bios.vendor: Insyde
dmi.bios.version: F.23
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 86E3
dmi.board.vendor: HP
dmi.board.version: 95.36
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 95.36
dmi.modalias:
dmi:bvnInsyde:bvrF.23:bd08/23/2024:br15.23:efr95.36:svnHP:pnHPPavilionLaptop15-cs3xxx:pvrType1ProductConfigId:rvnHP:rn86E3:rvr95.36:cvnHP:ct10:cvrChassisVersion:sku1C4H8EA#ABZ:pfa103C_5335KVHPPavilion:
dmi.product.family: 103C_5335KV HP Pavilion
dmi.product.name: HP Pavilion Laptop 15-cs3xxx
dmi.product.sku: 1C4H8EA#ABZ
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2155632
Title:
Mute LED not working on HP Pavilion 15-cs3xxx (ALC295, subsystem
0x103c86e3)
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