issue with screen resolution after software update

Question 1

I've recently updated my system through the "Software Updater" app.

After restarting the system the screen resolution was wrong, much smaller than expected and if I look among the Settings I am not able to choose any other screen resolution.

Previously, I was able to solve it by playing around with the settings in the "Software & Updates" app (NB: which is different from "Software Updater").
Apparently, Canonical has decided to remove it from newest versions of Ubuntu (see more: https://www.omgubuntu.co.uk/2026/02/ubuntu-26-04-drops-software-and-updates-gui).

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After looking around on the internet I followed some instructions:

I ran the cmmand ubuntu-drivers devices of which the below is the response from the terminal:

== /sys/devices/pci0000:00/0000:00:01.1/0000:01:00.0 ==
modalias : pci:v000010DEd00003893sv00001327sd0000413Bbc03sc00i00
vendor   : NVIDIA Corporation
model    : AD104 [GeForce RTX 4070 SUPER]
driver   : nvidia-driver-595-server-open - distro non-free
driver   : nvidia-driver-595 - distro non-free
driver   : nvidia-driver-580-server-open - distro non-free
driver   : nvidia-driver-595-server - distro non-free
driver   : nvidia-driver-580 - distro non-free
driver   : nvidia-driver-580-server - distro non-free
driver   : nvidia-driver-580-open - distro non-free
driver   : nvidia-driver-595-open - distro non-free recommended
driver   : xserver-xorg-video-nouveau - distro free builtin

I followed the instructions to install the recommended driver: sudo apt install nvidia-driver-595-open which returned the following response: nvidia-driver-595-open is already the newest version (595.71.05-0ubuntu0.26.04.1)
After rebooting the system, the problem persists

What else can I do to solve the problem?

Question 2

Not an answer, but a corroborating follow-up. I have the same symptoms after installing the latest kernel update two days ago. I also am using the NVidia proprietary driver.

For now, I am running from a kernel restored from my last Timeshift system image backup, dated July 10, which works fine. Because of the 640x480 fallback resolution, I couldn't use the Timeshift GUI, and had to fall back to the command line interface. (Maddening!)

I waited a day, and tried the update again, with the same result. There was at least one error message, possibly because I was running from a kernel that the update was trying to remove (?).