*** This bug is a duplicate of bug 1944094 ***
https://bugs.launchpad.net/bugs/1944094
Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1944094, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report. Feel free to continue to report any other bugs you may
find.
** Summary changed:
- Backlight regulation don't work
+ [Lenovo Legion 5 17ACH6H] Backlight regulation don't work
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
** This bug has been marked a duplicate of bug 1944094
Can't adjust screen backlight on Legion Slim 7 / Legion 5 (2021) AMD
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https://bugs.launchpad.net/bugs/2015255
Title:
[Lenovo Legion 5 17ACH6H] Backlight regulation don't work
Status in linux package in Ubuntu:
New
Bug description:
Hello.
I trying different fresh live USB: 20.04, 22.04, 22.10 and 23.04-beta
Only 23.04-beta can't adjust brightness level of display backlight on my
laptop (lenovo legion 5 17ach6h).
Processor: AMD Ryzen™ 7 5800H with Radeon™ Graphics × 16
Graphics: AMD Radeon™ Graphics / AMD Radeon™ Graphics
ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.2.0-18.18-generic 6.2.6
Uname: Linux 6.2.0-18-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.26.0-0ubuntu2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CasperVersion: 1.480
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 4 14:17:45 2023
DistUpgraded: Fresh install
DistroCodename: lunar
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
NVIDIA Corporation GA104M [GeForce RTX 3070 Mobile / Max-Q] [10de:24dd] (rev
a1) (prog-if 00 [VGA controller])
Subsystem: Lenovo GA104M [GeForce RTX 3070 Mobile / Max-Q] [17aa:3a4e]
Advanced Micro Devices, Inc. [AMD/ATI] Cezanne [Radeon Vega Series / Radeon
Vega Mobile Series] [1002:1638] (rev c5) (prog-if 00 [VGA controller])
Subsystem: Lenovo Cezanne [Radeon Vega Series / Radeon Vega Mobile Series]
[17aa:3a4e]
LiveMediaBuild: Ubuntu 23.04 "Lunar Lobster" - Beta amd64 (20230329)
MachineType: LENOVO 82JY
ProcEnviron:
LANG=C.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz
layerfs-path=minimal.standard.live.squashfs --- quiet splash
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/21/2022
dmi.bios.release: 1.59
dmi.bios.vendor: LENOVO
dmi.bios.version: GKCN59WW
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: Legion 5 17ACH6H
dmi.ec.firmware.release: 1.59
dmi.modalias:
dmi:bvnLENOVO:bvrGKCN59WW:bd11/21/2022:br1.59:efr1.59:svnLENOVO:pn82JY:pvrLegion517ACH6H:rvnLENOVO:rnLNVNB161216:rvrNODPK:cvnLENOVO:ct10:cvrLegion517ACH6H:skuLENOVO_MT_82JY_BU_idea_FM_Legion517ACH6H:
dmi.product.family: Legion 5 17ACH6H
dmi.product.name: 82JY
dmi.product.sku: LENOVO_MT_82JY_BU_idea_FM_Legion 5 17ACH6H
dmi.product.version: Legion 5 17ACH6H
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.114-1
version.libgl1-mesa-dri: libgl1-mesa-dri 23.0.1-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.7-1ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.17-2build1
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