** Also affects: linux (Ubuntu Focal)
Importance: High
Assignee: Hui Wang (hui.wang)
Status: Confirmed
** Also affects: linux (Ubuntu Eoan)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Eoan)
Status: New => In Progress
** Changed in: linux (Ubuntu Focal)
Status: Confirmed => In Progress
** Also affects: linux-oem-osp1 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-oem-osp1 (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Status: New => Invalid
** Changed in: linux-oem-osp1 (Ubuntu Bionic)
Status: New => In Progress
** Changed in: linux-oem-osp1 (Ubuntu Eoan)
Status: New => Invalid
** Changed in: linux-oem-osp1 (Ubuntu Focal)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1845677
Title:
volume control doesn't work (it's just on/off) on Lenovo ThinkPad X1
Carbon 7th gen
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-osp1 package in Ubuntu:
Invalid
Status in linux source package in Bionic:
Invalid
Status in linux-oem-osp1 source package in Bionic:
In Progress
Status in linux source package in Eoan:
In Progress
Status in linux-oem-osp1 source package in Eoan:
Invalid
Status in linux source package in Focal:
In Progress
Status in linux-oem-osp1 source package in Focal:
Invalid
Bug description:
[Impact]
There are 2 physical speakers on the X1 7th, and one is Bass speaker
and connect to a DAC which doesn't have volume control on it.
[Fix]
adjust that speaker to connect to a DAC which has volume control
capability.
[Test Case]
adjust the output volume from UI and play sound from speaker.
[Regression Risk]
Low, these change is specific to 2 lenovo machines.
On my Lenovo ThinkPad X1 Carbon 7th generation using the built-in
speakers, the volume is either off or on, there's no gradation in
volume when I move the slider up or down.
If I enable Over-Amplification than there's gradation in volume when I
turn the volume up past 100%, but not for 0-100%.
This problem does not occur with a headset plugged into the 3.5mm
jack.
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-12-generic 5.3.0-12.13
ProcVersionSignature: Ubuntu 5.3.0-12.13-generic 5.3.0
Uname: Linux 5.3.0-12-generic x86_64
ApportVersion: 2.20.11-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jik 3746 F.... pulseaudio
/dev/snd/pcmC0D0p: jik 3746 F...m pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Fri Sep 27 11:07:44 2019
InstallationDate: Installed on 2019-09-12 (14 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
MachineType: LENOVO 20QD001VUS
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-12-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.3.0-12-generic N/A
linux-backports-modules-5.3.0-12-generic N/A
linux-firmware 1.182
SourcePackage: linux
UpgradeStatus: Upgraded to eoan on 2019-09-20 (7 days ago)
dmi.bios.date: 07/04/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: N2HET30W (1.13 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20QD001VUS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN2HET30W(1.13):bd07/04/2019:svnLENOVO:pn20QD001VUS:pvrThinkPadX1Carbon7th:rvnLENOVO:rn20QD001VUS:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Carbon 7th
dmi.product.name: 20QD001VUS
dmi.product.sku: LENOVO_MT_20QD_BU_Think_FM_ThinkPad X1 Carbon 7th
dmi.product.version: ThinkPad X1 Carbon 7th
dmi.sys.vendor: LENOVO
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