UI not responding when only external monitor is active

[maxroby]

Ubuntu 22.10
nvidia-driver-525

With the recent nvidia drivers (two or three releases), if I switch ON the external monitor (HDMI) and OFF the laptop one, the UI (Gnome) responds very late to input, causing a seconds delay between click and actions. If I turn on the laptop monitor, it responds as expected.

I've tried open source drivers but the notebook doesn't reach the login screen.

Thanks,
Roberto

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: nvidia-driver-525 525.78.01-0ubuntu0.22.10.1
ProcVersionSignature: Ubuntu 5.19.0-31.32-generic 5.19.17
Uname: Linux 5.19.0-31-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.23.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Feb 13 08:03:59 2023
InstallationDate: Installed on 2022-10-24 (111 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SourcePackage: nvidia-graphics-drivers-525
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

Canonical engineers are now tracking this issue in bug 2009767.

[maxroby (maxroby)]

Hi, I hope you are right and it's a duplicate but my issue is different: mouse cursor is moving fast but it's all the GUI lagging, and on the external monitor only when the primary one is switched off.
Many thanks,
Roberto

[Daniel van Vugt (vanvugt)]

Since they're actively working on it, we'll wait for that fix and then assess which duplicate bugs are still unresolved afterwards.

[Daniel van Vugt (vanvugt)]

One person has said that downgrading from NVIDIA 525 to 515 fixed it for them. Maybe try that?

[maxroby (maxroby)]

Hi, I confirm that downgrading to 515 solves the problem.