Screen flickering and weird behaviour with NVIDIA dGPU

[George Salukvadze]

Since I've switched my laptop to use only discrete GPU (using BIOS switch), I've been experiencing screen flickering and weird behaviour in some apps, like text being typed slowly, title bars not appearing and even content being shown blank.
I've tried changing refresh rate back to 60Hz, installing older drivers (515), installing driver from NVIDIA website, enrolling the driver key into SecureBoot DB. Upgrading to Ubuntu 23.04 didn't help either.
There is no AMDGPU driver installed

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.2.0-20.20-generic 6.2.6
Uname: Linux 6.2.0-20-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 525.105.17 Tue Mar 28 18:02:59 UTC 2023
 GCC version: gcc version 12.2.0 (Ubuntu 12.2.0-17ubuntu1)
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 24 10:49:01 2023
DistUpgraded: 2023-04-20 10:00:59,509 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: lunar
DistroVariant: ubuntu
DkmsStatus: nvidia/525.105.17, 6.2.0-20-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
 NVIDIA Corporation GA104M [GeForce RTX 3080 Mobile / Max-Q 8GB/16GB] [10de:24dc] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Lenovo GA104M [GeForce RTX 3080 Mobile / Max-Q 8GB/16GB] [17aa:3a58]
InstallationDate: Installed on 2023-02-09 (73 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
MachineType: LENOVO 82N6
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.2.0-20-generic root=UUID=2a43fd27-b65c-4d7a-bc19-b001521b0771 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to lunar on 2023-04-20 (4 days ago)
dmi.bios.date: 03/07/2023
dmi.bios.release: 1.60
dmi.bios.vendor: LENOVO
dmi.bios.version: GKCN60WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76461 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Legion 7 16ACHg6
dmi.ec.firmware.release: 1.60
dmi.modalias: dmi:bvnLENOVO:bvrGKCN60WW:bd03/07/2023:br1.60:efr1.60:svnLENOVO:pn82N6:pvrLegion716ACHg6:rvnLENOVO:rnLNVNB161216:rvrSDK0T76461WIN:cvnLENOVO:ct10:cvrLegion716ACHg6:skuLENOVO_MT_82N6_BU_idea_FM_Legion716ACHg6:
dmi.product.family: Legion 7 16ACHg6
dmi.product.name: 82N6
dmi.product.sku: LENOVO_MT_82N6_BU_idea_FM_Legion 7 16ACHg6
dmi.product.version: Legion 7 16ACHg6
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.114-1
version.libgl1-mesa-dri: libgl1-mesa-dri 23.0.2-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 23.0.2-1ubuntu1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.7-1ubuntu3
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

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1970389, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

[Daniel van Vugt (vanvugt)]

If Nvidia is your primary GPU then please ensure you are logged into Xorg rather than Wayland. That is unless you are sure ALL your apps are native Wayland.