[Shanghai Zhaoxin Semiconductor Co., Ltd. ZXE CRB] No backlight control

[Larry Wei]

Ubuntu 23.04: Adjusting backlight is unavailable under `Software Rendering`.

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
ApportVersion: 2.26.0-0ubuntu2
Architecture: amd64
CasperMD5CheckMismatches: ./pool/restricted/n/nvidia-graphics-drivers-515/libnvidia-gl-515_515.65.01-0ubuntu3_amd64.deb
CasperMD5CheckResult: fail
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 23 23:11:16 2023
DistUpgraded: 2023-03-05 10:20:01,054 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: lunar
DistroVariant: ubuntu
DkmsStatus:
 fwts-efi-runtime-dkms/23.01.00, 6.2.0-18-generic, x86_64: installed (WARNING! Diff between built and installed module!)
 rtpengine/10.5.3.5, 5.19.0-35-generic, x86_64: installed
 rtpengine/10.5.3.5, 6.2.0-18-generic, x86_64: installed
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Zhaoxin ZX-E C-960 GPU [1d17:3a04] (prog-if 00 [VGA controller])
   Subsystem: Zhaoxin ZX-E C-960 GPU [1d17:3a04]
InstallationDate: Installed on 2022-10-16 (157 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Beta amd64 (20220927.1)
MachineType: Shanghai Zhaoxin Semiconductor Co., Ltd. ZXE CRB
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=tmux-256color
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.2.0-18-generic root=UUID=c377d279-f34f-4d82-ae9a-e256d706b9de ro recovery nomodeset dis_ucode_ldr
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to lunar on 2023-03-05 (18 days ago)
dmi.bios.date: 01/26/2021
dmi.bios.release: 16.0
dmi.bios.vendor: Byosoft
dmi.bios.version: R16
dmi.board.asset.tag: TBD
dmi.board.name: ZEN1
dmi.board.vendor: Shanghai Zhaoxin Semiconductor Co., Ltd.
dmi.board.version: TBD
dmi.chassis.asset.tag: TBD
dmi.chassis.type: 10
dmi.chassis.vendor: Shanghai Zhaoxin Semiconductor Co., Ltd.
dmi.chassis.version: TBD
dmi.ec.firmware.release: 3.0
dmi.modalias: dmi:bvnByosoft:bvrR16:bd01/26/2021:br16.0:efr3.0:svnShanghaiZhaoxinSemiconductorCo.,Ltd.:pnZXECRB:pvrTBD:rvnShanghaiZhaoxinSemiconductorCo.,Ltd.:rnZEN1:rvrTBD:cvnShanghaiZhaoxinSemiconductorCo.,Ltd.:ct10:cvrTBD:skuTBD:
dmi.product.family: ZXE
dmi.product.name: ZXE CRB
dmi.product.sku: TBD
dmi.product.version: TBD
dmi.sys.vendor: Shanghai Zhaoxin Semiconductor Co., Ltd.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.114-1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.3.6-1ubuntu2
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

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.