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I have configured the host screen with two monitors extending the desktop.
They are both configured at 3840x2160, scale 150%, fractional scaling: yes.
After a period of inactivity, the screens get blanked as configured.
When I move the mouse and the screens unblank, sometimes (not always) the
configuration is changed by mirroring the same content on the two displays.
Anyway, the display are still configured as extended in the applet.
Trying to change some settings to restore the desired configuration never work.
I have to unbplug and re-plug the second monitor.
But sometimes, after unplugging and replugging the secondary monitor,
the session crashes, all the apps are terminated and I get just the
logon screen.
In other words, gnome is not able to manage reliably the blank/unblank cycle in
a multi-monitor configuration.
I also tried with the AMD built-in graphics card and the behavior is exactly
the same. Therefore I don´t think that the NVidia driver has anything to do
with it.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.8.0-39.39-generic 6.8.8
Uname: Linux 6.8.0-39-generic 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 535.183.01 Sun May 12
19:39:15 UTC 2024
GCC version:
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Aug 1 16:41:52 2024
DistUpgraded: 2024-05-30 18:43:55,152 DEBUG migrateToDeb822Sources()
DistroCodename: noble
DistroVariant: ubuntu
GraphicsCard:
NVIDIA Corporation GP106 [GeForce GTX 1060 3GB] [10de:1c02] (rev a1) (prog-if
00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd GP106 [GeForce GTX 1060 3GB]
[1458:3722]
Advanced Micro Devices, Inc. [AMD/ATI] Raphael [1002:164e] (rev c9) (prog-if
00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Raphael [1043:8877]
InstallationDate: Installed on 2023-12-11 (234 days ago)
InstallationMedia: Ubuntu-Server 23.04 "Lunar Lobster" - Release amd64
(20230415)
MachineType: ASUS System Product Name
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-39-generic
root=UUID=445b6419-9578-4846-99e2-eb90362e1711 ro amd_iommu=on pcie_port_pm=off
kvm.ignore_msrs=1 iommu=pt kvm_amd.npt=1 kvm_amd.avic=1
vfio-pci.ids=10de:2805,10de:22bd
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to noble on 2024-05-30 (63 days ago)
dmi.bios.date: 04/12/2024
dmi.bios.release: 20.7
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2007
dmi.board.asset.tag: Default string
dmi.board.name: ProArt X670E-CREATOR WIFI
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.:bvr2007:bd04/12/2024:br20.7:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnProArtX670E-CREATORWIFI: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.nvidia-graphics-drivers: nvidia-graphics-drivers-* 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: mutter (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: amd64 apport-bug noble possible-manual-nvidia-install ubuntu
--
After screen blank, the displays configuration gets lost
https://bugs.launchpad.net/bugs/2075525
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