Public bug reported:
On my Lenovo Legion 7 I have no audio output at all. In addition to no
sound audio bluetooth won't turn on. Anytime I click enable in gnome gui
it snaps it back to disable and will never search.
I've tried updating to the latest kernel but that did not fix the issue,
and additionally, it broke HDMI output, (I think the GPU was not
initializing at all).
I've confirmed it is not a hardware issue because booting into windows
fixes the issue.
.venv) vburns@vburns-Legion-7-16IAX10:~/repos/dozer/star_system$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 24.04.3 LTS
Release: 24.04
Codename: noble
(.venv) vburns@vburns-Legion-7-16IAX10:~/repos/dozer/star_system$ uname -r
6.14.0-35-generic
(.venv) vburns@vburns-Legion-7-16IAX10:~/repos/dozer/star_system$ sudo lshw
-short
[sudo] password for vburns:
H/W path Device Class Description
==========================================================
system 83KY
(LENOVO_MT_83KY_BU_idea_FM_Legion 7 16IAX10)
/0 bus LNVNB161216
/0/0 memory 1MiB BIOS
/0/4 processor Intel(R) Core(TM) Ultra 9 275HX
/0/4/a memory 1MiB L1 cache
/0/4/b memory 16MiB L2 cache
/0/4/c memory 36MiB L3 cache
/0/5 memory 384KiB L1 cache
/0/6 memory 512KiB L1 cache
/0/7 memory 24MiB L2 cache
/0/8 memory 36MiB L3 cache
/0/9 memory 512KiB L1 cache
/0/28 memory 32GiB System Memory
/0/28/0 memory 16GiB SODIMM Synchronous 5600
MHz (0.2 ns)
/0/28/1 memory 16GiB SODIMM Synchronous 5600
MHz (0.2 ns)
/0/100 bridge Intel Corporation
/0/100/1 bridge Intel Corporation
/0/100/1/0 /dev/nvme0 storage SAMSUNG MZAL81T0HFLB-00BL2
/0/100/1/0/0 hwmon2 disk NVMe disk
/0/100/1/0/2 /dev/ng0n1 disk NVMe disk
/0/100/1/0/1 /dev/nvme0n1 disk 1024GB NVMe disk
/0/100/1/0/1/1 volume 259MiB Windows FAT volume
/0/100/1/0/1/2 /dev/nvme0n1p2 volume 15MiB reserved partition
/0/100/1/0/1/3 /dev/nvme0n1p3 volume 488GiB Windows NTFS volume
/0/100/1/0/1/4 /dev/nvme0n1p4 volume 1999MiB Windows NTFS volume
/0/100/1/0/1/5 /dev/nvme0n1p5 volume 462GiB EXT4 volume
/0/100/2 /dev/fb0 display Arrow Lake-U [Intel Graphics]
/0/100/4 generic Intel Corporation
/0/100/6 bridge Intel Corporation
/0/100/6/0 /dev/fb1 display NVIDIA Corporation
/0/100/6/0.1 card0 multimedia NVIDIA Corporation
/0/100/6/0.1/0 input30 input HDA NVidia HDMI/DP,pcm=3
/0/100/6/0.1/1 input31 input HDA NVidia HDMI/DP,pcm=7
/0/100/7 bridge Meteor Lake-P Thunderbolt 4 PCI
Express Root Port #0
/0/100/a generic Intel Corporation
/0/100/b generic Arrow Lake NPU
/0/100/d bus Meteor Lake-P Thunderbolt 4 USB
Controller
/0/100/d/0 usb1 bus xHCI Host Controller
/0/100/d/1 usb2 bus xHCI Host Controller
/0/100/d.2 bus Meteor Lake-P Thunderbolt 4 NHI
#0
/0/100/14 memory RAM memory
/0/100/1f bridge Intel Corporation
/0/100/1f/0 system PnP device PNP0c02
/0/100/1f/1 input PnP device PNP0303
/0/100/1f/2 system PnP device PNP0c02
/0/100/1f/3 system PnP device PNP0c02
/0/100/1f/4 system PnP device PNP0c02
/0/100/1f/5 system PnP device PNP0c02
/0/100/1f/6 input29 input Ideapad extra buttons
/0/100/1f.5 bus Intel Corporation
/0/14 bus Intel Corporation
/0/14/0 usb3 bus xHCI Host Controller
/0/14/0/2 input Idea5003
/0/14/0/3 input Lenovo Lighting
/0/14/0/4 input10 input ITE Tech. Inc. ITE Device(8258)
Wireless Radio Control
/0/14/0/a bus USB2.1 Hub
/0/14/0/a/1 bus USB2.1 Hub
/0/14/0/a/1/1 multimedia HD Pro Webcam C920
/0/14/0/a/2 bus USB2.1 Hub
/0/14/0/a/2/4 input USB-HID Keyboard
/0/14/0/a/3 bus USB2.1 Hub
/0/14/0/a/3/2 generic PicoScope 2000
/0/14/0/a/3/3 input USB Receiver
/0/14/0/a/4 bus USB2.1 Hub
/0/14/0/a/4/3 generic J-Link
/0/14/0/b multimedia Integrated RGB Camera
/0/14/1 usb4 bus xHCI Host Controller
/0/14/1/3 bus USB3.1 Hub
/0/14/1/3/1 bus USB3.1 Hub
/0/14/1/3/2 bus USB3.1 Hub
/0/14/1/3/3 bus USB3.1 Hub
/0/14/1/3/4 bus USB3.1 Hub
/0/14.5 generic Intel Corporation
/0/15 bus Intel Corporation
/0/15.1 bus Intel Corporation
/0/15.2 bus Intel Corporation
/0/16 communication Intel Corporation
/0/19 bus Intel Corporation
/0/19.1 bus Intel Corporation
/0/1c bridge Intel Corporation
/0/1c/0 mmc0 bus RTS525A PCI Express Card Reader
/0/1c.7 bridge Intel Corporation
/0/1c.7/0 wlp130s0 network MEDIATEK Corp.
/0/1f bridge Intel Corporation
/0/1f.3 card2 multimedia Intel Corporation
/0/1f.3/0 input34 input HDA Intel PCH Mic
/0/1f.3/1 input35 input HDA Intel PCH Headphone
/0/1f.3/2 input36 input HDA Intel PCH HDMI/DP,pcm=3
/0/1f.3/3 input37 input HDA Intel PCH HDMI/DP,pcm=7
/0/1f.3/4 input38 input HDA Intel PCH HDMI/DP,pcm=8
/0/1f.3/5 input39 input HDA Intel PCH HDMI/DP,pcm=9
/0/1f.4 bus Intel Corporation
/0/1f.5 bus Intel Corporation
/1 power CRB Battery 0
/2 power OEM Define 5
/3 card1 multimedia C920
/4 input0 input Lid Switch
/5 input1 input Power Button
/6 input13 input USB-HID Keyboard
/7 input14 input USB-HID Keyboard System Control
/8 input15 input USB-HID Keyboard Consumer Control
/9 input16 input USB-HID Keyboard Mouse
/a input17 input USB-HID Keyboard
/b input2 input Power Button
/c input28 input Logitech MX Master 3
/d input3 input AT Translated Set 2 keyboard
/e input32 input Video Bus
/f input33 input Video Bus
/10 input7 input FTCS0038:00 2808:0105 Mouse
/11 input8 input FTCS0038:00 2808:0105 Touchpad
(.venv) vburns@vburns-Legion-7-16IAX10:~/repos/dozer/star_system$ lspci -k |
grep -EA3 'VGA|3D|Display'
00:02.0 VGA compatible controller: Intel Corporation Arrow Lake-U [Intel
Graphics] (rev 06)
Subsystem: Lenovo Device 8019
Kernel driver in use: i915
Kernel modules: i915, xe
--
02:00.0 VGA compatible controller: NVIDIA Corporation Device 2d58 (rev a1)
Subsystem: Lenovo Device 8019
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
--
80:14.5 Non-VGA unclassified device: Intel Corporation Device 7f2f (rev 10)
Subsystem: Lenovo Device 3e10
80:15.0 Serial bus controller: Intel Corporation Device 7f4c (rev 10)
Subsystem: Lenovo Device 3e10
(.venv) vburns@vburns-Legion-7-16IAX10:~/repos/dozer/star_system$ ubuntu-bug
pgrep: invalid user name: pulse
REDACTED config part /etc/cloud/cloud.cfg.d/99-installer.cfg, insufficient
permissions
REDACTED config part /etc/cloud/cloud.cfg.d/90-installer-network.cfg,
insufficient permissions
Opening in existing browser session.
(.venv) vburns@vburns-Legion-7-16IAX10:~/repos/dozer/star_system$
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 6.14.0-35.35~24.04.1-generic 6.14.11
Uname: Linux 6.14.0-35-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: vburns 2552 F.... wireplumber
/dev/snd/controlC1: vburns 2552 F.... wireplumber
/dev/snd/controlC0: vburns 2552 F.... wireplumber
/dev/snd/seq: vburns 2549 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Nov 11 16:47:14 2025
InstallationDate: Installed on 2025-11-11 (0 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
MachineType: LENOVO 83KY
PackageArchitecture: all
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: alsa-driver
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/20/2025
dmi.bios.release: 1.21
dmi.bios.vendor: LENOVO
dmi.bios.version: RXCN21WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76461 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Legion 7 16IAX10
dmi.ec.firmware.release: 1.21
dmi.modalias:
dmi:bvnLENOVO:bvrRXCN21WW:bd06/20/2025:br1.21:efr1.21:svnLENOVO:pn83KY:pvrLegion716IAX10:rvnLENOVO:rnLNVNB161216:rvrSDK0T76461WIN:cvnLENOVO:ct10:cvrLegion716IAX10:skuLENOVO_MT_83KY_BU_idea_FM_Legion716IAX10:
dmi.product.family: Legion 7 16IAX10
dmi.product.name: 83KY
dmi.product.sku: LENOVO_MT_83KY_BU_idea_FM_Legion 7 16IAX10
dmi.product.version: Legion 7 16IAX10
dmi.sys.vendor: LENOVO
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2131107
Title:
Lenovo Legion 7 Bluetooth and Sound don't work
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