nvidia resolution mess after sleep mode

I installed Ubuntu 23.10 on a laptop Legion Pro 5 (16IRX8). It has a GeForce RTX 4070 Max-Q GPU. I use an external display Samsung 49" CRG90 DQHD Curved 120Hz (LC49RG90SSUXEN)

When I start the laptop, the display is detected properly and I can set the external display to 5120x1440 119.97Hz and all looks fine.

But if it goes to sleep mode or the display is off after a few minutes, when it wakes up, the display is configured as 3840x1080 119.97Hz and I'm not able to change back to 5120x1440 119.97Hz because for that resolution the only option is 100Hz or 59.98Hz.

Logout and login allows me to select the right resolution again.

Any idea or guidance to find where is the problem?

~ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 23.10
Release: 23.10
Codename: mantic

~ cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module 545.29.06 Thu Nov 16 01:59:08 UTC 2023
GCC version: gcc version 13.2.0 (Ubuntu 13.2.0-4ubuntu3)