Public bug reported:
The screen brightness is stuck at 50% of the max output and the
brightness controls/slider do nothing at all.
This issue started happening with the nvidia-driver-470 package even
before I upgraded from 21.04, and it doesn't happen with 465. The bug
manifests in both X11 and Wayland. (and GDM itself before logging in)
Setting nvidia-drm.modeset to 1 doesn't seem to affect it either.
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: xorg 1:7.7+22ubuntu2
ProcVersionSignature: Ubuntu 5.13.0-19.19-lowlatency 5.13.14
Uname: Linux 5.13.0-19-lowlatency x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file.
.proc.driver.nvidia.capabilities.mig: Error: path was not a regular file.
.proc.driver.nvidia.gpus.0000.01.00.0: Error: path was not a regular file.
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
NVRM version: NVIDIA UNIX x86_64 Kernel Module 470.74 Mon Sep 13 23:09:15
UTC 2021
GCC version: gcc version 11.2.0 (Ubuntu 11.2.0-7ubuntu2)
ApportVersion: 2.20.11-0ubuntu70
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 16 03:46:49 2021
DistUpgraded: 2021-10-16 03:03:33,254 DEBUG Running PostInstallScript:
'/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: impish
DistroVariant: ubuntu
DkmsStatus:
acpi-call, 1.1.0, 5.11.0-37-generic, x86_64: installed
acpi-call, 1.1.0, 5.11.0-37-lowlatency, x86_64: installed
acpi-call, 1.1.0, 5.13.0-19-generic, x86_64: installed
acpi-call, 1.1.0, 5.13.0-19-lowlatency, x86_64: installed
nvidia, 470.74, 5.13.0-19-lowlatency, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
NVIDIA Corporation GP106BM [GeForce GTX 1060 Mobile 6GB] [10de:1c60] (rev a1)
(prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company GP106BM [GeForce GTX 1060 Mobile 6GB]
[103c:846a]
InstallationDate: Installed on 2020-08-06 (436 days ago)
InstallationMedia:
MachineType: HP OMEN by HP Laptop
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-19-lowlatency
root=UUID=4d38cd06-3a59-420a-be51-f664f12d213d ro quiet splash
nvidia-drm.modeset=1 vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to impish on 2021-10-16 (0 days ago)
dmi.bios.date: 05/11/2018
dmi.bios.release: 15.3
dmi.bios.vendor: AMI
dmi.bios.version: F.03
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 846A
dmi.board.vendor: HP
dmi.board.version: 68.19
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 68.19
dmi.modalias:
dmi:bvnAMI:bvrF.03:bd05/11/2018:br15.3:efr68.19:svnHP:pnOMENbyHPLaptop:pvr:sku4PM48EA#ABV:rvnHP:rn846A:rvr68.19:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP OMEN
dmi.product.name: OMEN by HP Laptop
dmi.product.sku: 4PM48EA#ABV
dmi.sys.vendor: HP
nvidia-settings:
ERROR: Unable to find display on any available system
ERROR: Unable to find display on any available system
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.107-8ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.2-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 21.2.2-1ubuntu1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200714-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-1build1
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug impish possible-manual-nvidia-install ubuntu
wayland-session
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https://bugs.launchpad.net/bugs/1947432
Title:
Display backlight and brightness controls are not working
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