Public bug reported:
I've installed Ubuntu 21.10 with recent updates from scratch, and screen
brightness control hot keys do not work. I can adjust brightness with slide bar
in settings, and also with
$ echo 2000 | sudo tee /sys/class/backlight/intel_backlight/brightness
Both acpi_listen and 'sudo showkey' commands show no events, not even in a
console.
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: linux-image-5.13.0-20-generic 5.13.0-20.20
ProcVersionSignature: Ubuntu 5.13.0-20.20-generic 5.13.14
Uname: Linux 5.13.0-20-generic x86_64
ApportVersion: 2.20.11-0ubuntu70
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: lex 1476 F.... pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Fri Oct 22 19:24:38 2021
InstallationDate: Installed on 2021-10-21 (1 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
MachineType: LENOVO 82H7
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.13.0-20-generic
root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.13.0-20-generic N/A
linux-backports-modules-5.13.0-20-generic N/A
linux-firmware 1.201
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/13/2021
dmi.bios.release: 1.20
dmi.bios.vendor: LENOVO
dmi.bios.version: GGCN20WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: NO DPK
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad 3 14ITL6
dmi.ec.firmware.release: 1.20
dmi.modalias:
dmi:bvnLENOVO:bvrGGCN20WW:bd01/13/2021:br1.20:efr1.20:svnLENOVO:pn82H7:pvrIdeaPad314ITL6:skuLENOVO_MT_82H7_BU_idea_FM_IdeaPad314ITL6:rvnLENOVO:rnLNVNB161216:rvrNODPK:cvnLENOVO:ct10:cvrIdeaPad314ITL6:
dmi.product.family: IdeaPad 3 14ITL6
dmi.product.name: 82H7
dmi.product.sku: LENOVO_MT_82H7_BU_idea_FM_IdeaPad 3 14ITL6
dmi.product.version: IdeaPad 3 14ITL6
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug impish wayland-session
** Description changed:
I've installed Ubuntu 21.10 with recent updates from scratch, and screen
brightness control hot keys do not work. I can adjust brightness with slide bar
in settings, and also with
- <code>$ echo 2000 | sudo tee
/sys/class/backlight/intel_backlight/brightness</code>
+ $ echo 2000 | sudo tee /sys/class/backlight/intel_backlight/brightness
Both acpi_listen and 'sudo showkey' commands show no events, not even in a
console.
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: linux-image-5.13.0-20-generic 5.13.0-20.20
ProcVersionSignature: Ubuntu 5.13.0-20.20-generic 5.13.14
Uname: Linux 5.13.0-20-generic x86_64
ApportVersion: 2.20.11-0ubuntu70
Architecture: amd64
AudioDevicesInUse:
- USER PID ACCESS COMMAND
- /dev/snd/controlC0: lex 1476 F.... pulseaudio
+ USER PID ACCESS COMMAND
+ /dev/snd/controlC0: lex 1476 F.... pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Fri Oct 22 19:24:38 2021
InstallationDate: Installed on 2021-10-21 (1 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
MachineType: LENOVO 82H7
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.13.0-20-generic
root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
- linux-restricted-modules-5.13.0-20-generic N/A
- linux-backports-modules-5.13.0-20-generic N/A
- linux-firmware 1.201
+ linux-restricted-modules-5.13.0-20-generic N/A
+ linux-backports-modules-5.13.0-20-generic N/A
+ linux-firmware 1.201
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/13/2021
dmi.bios.release: 1.20
dmi.bios.vendor: LENOVO
dmi.bios.version: GGCN20WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: NO DPK
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad 3 14ITL6
dmi.ec.firmware.release: 1.20
dmi.modalias:
dmi:bvnLENOVO:bvrGGCN20WW:bd01/13/2021:br1.20:efr1.20:svnLENOVO:pn82H7:pvrIdeaPad314ITL6:skuLENOVO_MT_82H7_BU_idea_FM_IdeaPad314ITL6:rvnLENOVO:rnLNVNB161216:rvrNODPK:cvnLENOVO:ct10:cvrIdeaPad314ITL6:
dmi.product.family: IdeaPad 3 14ITL6
dmi.product.name: 82H7
dmi.product.sku: LENOVO_MT_82H7_BU_idea_FM_IdeaPad 3 14ITL6
dmi.product.version: IdeaPad 3 14ITL6
dmi.sys.vendor: LENOVO
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https://bugs.launchpad.net/bugs/1948505
Title:
Screen Brightness keys do not work on Lenovo IdeaPad 3
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