Public bug reported:
When my screen blanks from inactivity timeout the backlight stays on,
for multiple hours and does not turn off ever.
Additional Notes:
* "Everything else" appears to be working fine. I can move my mouse, enter
password on lock screen, and resume doing whatever I was doing.
* This is a dual boot machine, on the Win11 side of things there are no issues.
* Monitor connected over display port.
* This was also a problem in Ubuntu 22 which was installed before the 24
upgrade.'
* This has been consistently happening for a number of months.
Happy to provide any other additional info required or further help
debug.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.5.0-44.44-generic 6.5.13
Uname: Linux 6.5.0-44-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Sep 19 18:45:03 2024
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
DkmsStatus: nvidia/550.107.02, 6.5.0-44-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
NVIDIA Corporation AD102 [GeForce RTX 4090] [10de:2684] (rev a1) (prog-if 00
[VGA controller])
Subsystem: ASUSTeK Computer Inc. AD102 [GeForce RTX 4090] [1043:88e2]
InstallationDate: Installed on 2024-04-27 (145 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
MachineType: ASUS System Product Name
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/usr/bin/fish
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-44-generic
root=UUID=3d5956d7-e387-44fa-8e27-e437aad3feda ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/07/2024
dmi.bios.release: 15.3
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1503
dmi.board.asset.tag: Default string
dmi.board.name: ROG MAXIMUS Z790 DARK HERO
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1503:bd08/07/2024:br15.3:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGMAXIMUSZ790DARKHERO:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: ASUS
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.120-2build1
version.libgl1-mesa-dri: libgl1-mesa-dri 24.0.9-0ubuntu0.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble ubuntu
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https://bugs.launchpad.net/bugs/2081244
Title:
External Monitor backlight does not turn off on blank
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