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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1976473
Title:
[Dell G15 5515] Unable to change screen brightness in ubuntu desktop
Status in linux package in Ubuntu:
Confirmed
Bug description:
I have Dell G15 5515 Ryzen edition. It has Nvidia 3050 graphics.
In /sys/class/backlight directory, there are two directories
amdgpu_bl0 and nvidia_wmi_ec_backlight.
When I change the screen brightness via slider then it changes the
brightness value of nvidia_wmi_ec_backlight but it doesn't work. When
I manually changed the value of amdgpu_bl0 brightness file then my
screen brightness changed.
My BIOS is updated to the latest version and I have NVIDIA Driver with
version 510.73.05.
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ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: yorozuya 2677 F.... pulseaudio
/dev/snd/controlC0: yorozuya 2677 F.... pulseaudio
/dev/snd/controlC1: yorozuya 2677 F.... pulseaudio
/dev/snd/controlC3: yorozuya 2677 F.... pulseaudio
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 22.04
InstallationDate: Installed on 2022-05-30 (2 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64
(20220419)
MachineType: Dell Inc. Dell G15 5515
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-33-generic
root=UUID=1eb57d4b-9978-4341-be1f-5e7197194361 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.15.0-33.34-generic 5.15.30
RelatedPackageVersions:
linux-restricted-modules-5.15.0-33-generic N/A
linux-backports-modules-5.15.0-33-generic N/A
linux-firmware 20220329.git681281e4-0ubuntu3
Tags: wayland-session jammy
Uname: Linux 5.15.0-33-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip docker libvirt lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 03/14/2022
dmi.bios.release: 5.3
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.6.0
dmi.board.asset.tag: not specified
dmi.board.name: 0TGD6F
dmi.board.vendor: Dell Inc.
dmi.board.version: A04
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 1.6.0
dmi.modalias:
dmi:bvnDellInc.:bvr1.6.0:bd03/14/2022:br5.3:svnDellInc.:pnDellG155515:pvr1.6.0:rvnDellInc.:rn0TGD6F:rvrA04:cvnDellInc.:ct10:cvr1.6.0:sku0A6E:
dmi.product.family: GSeries
dmi.product.name: Dell G15 5515
dmi.product.sku: 0A6E
dmi.product.version: 1.6.0
dmi.sys.vendor: Dell Inc.
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