No access to desktop after changing graphics card.

[Supersayano]

Today I replaced my old Gigabyte GeForce 2070 graphics card with my new MSI GeForce 5060 Ti, and the result is that Grub loads perfectly, but then when I select Kubuntu, it doesn't load.
At first, it looks like this for a while:



And after a few seconds the screen shows this:



Finally the screen shows this, whose numbers keep growing until I don't know how much, because I have been there for several minutes and they kept coming out without ever loading the desktop.



The drivers I had installed are the ones included in the repositories and are proprietary. I can't look at them anymore, but I seem to remember they were 550.xx.
In short, I'm locked out of the system, and I'd like to know if you can help me recover my desktop somehow.
Thanks in advance, and best regards…

[Supersayano]

Can't anyone really help me? Does anyone have anything to contribute? Is it really that difficult to change the graphics card in an existing Kubuntu installation? Does that mean that a simple card change requires a complete reinstallation of the system? Please, I need help.
Regards...

[claydoh]

No idea. I don't have 5-600USD to spend on a GPU
Nvidia can be messy.

Maybe put old card back in and revert to nouveau before swapping?

Is something as recently released as a 5070 even well-supported on Ubuntu LTS or the nvidia driver you had?

[kc1di]

According to Nvidia you need the 570.124.04 driver for that card to work in Linux, So I think claydoh suggestion of putting old card in and switching to nouveau long enough to get a 570 driver installed might be the answer.

[Supersayano]

Sorry, I mistook the model of my new graphics card; it's not the 5070 Ti but the 5060 Ti.

Anyway, I followed your suggestions and replaced the old card, the 2070. Unfortunately, it didn't work. I updated the driver to that version and then replaced the 5060. And as I said, it had little effect. Now, instead of those numbers from the last image in my first message, the screen goes completely black.
Regards...

[kc1di]

At this point I would consider backing up important files. Put the new card you want to use in and boot from live usb. see if will give a desktop if it does copy and backup and files you can't live without to an external storage such as usb or cloud, etc. Then do a fresh install of kubuntu. If the live session does not work try it with the old card.

[Supersayano]

The Kubuntu LiveUSB boots and loads the graphical desktop without any issues on the 5060 Ti. There are no issues with the files because I have backups of all of them. The problem I see with doing a clean install, aside from the enormous work involved in leaving everything as it was, is that there's no guarantee that, once Kubuntu is installed, I won't be left without a graphical interface when installing the NVIDIA drivers. And, of course, constantly using the generic Kubuntu drivers is unacceptable.

Well, in light of all this, I think I can conclude that there is currently no valid driver for my 5060 Ti graphics card. So I'll have to wait for NVIDIA to release a suitable driver, and I hope it doesn't keep me waiting too long.
I've already sold the old 2070, so I won't have it soon, so I can't count on it for anything.
Saludos...

[kc1di]

I think that the problem you may be running into is that Nvidia does not support Wayland well yet. Or should I say Wayland does not support Nvidia well. Hopefully is will get sorted out soon for you. In the meantime if it's working with the opensource driver on the live usb. Then it should work on the install as well may not be optimal but at lest it will work. Good luck and let us know if you get it sorted. Have you tried it using x11 instead of Wayland?

[Supersayano]

I wasn't using Wayland, but rather x11, on my Kubuntu 24.04.
And since the Kubuntu LiveUSB does show the graphical interface, it probably will during and after the installation. However, since I won't be able to install the NVIDIA driver after installing the system because there aren't currently any compatible ones, I'd rather wait and try the drivers NVIDIA releases on my old Kubuntu installation to avoid having to reinstall the entire system.
Regards...

[kc1di]

Of course the choice is yours. That's one of the things great about Linux

[Supersayano]

I wish hardware manufacturers like NVIDIA would take us more seriously. They really don't make it easy for us.
Regards...

[kc1di]

I wish hardware manufacturers like NVIDIA would take us more seriously. They really don't make it easy for us.
Regards...

Yes it would be nice, problem is we just don't have the market share in personal PC market. Though some vendors have gotten on board. Nvidia says they are going to but seem to lag way behind. I don't do gaming so I tend to try to stick with intel as they are well supported in Linux. Cheers!

[skyfishgoo]

if you want to just return to the free drivers in the meantime with your current install you can get to a tty terminal via Ctrl+alt+F3 and purge your machine of anything related to nvidia, then when you reboot the open source drivers will kick in unless you have mucked with your grub file (then you would also need to unmuck that).

sudo apt update
sudo apt purge *nvidia*
sudo apt autoremove
reboot​

[Supersayano]

I've already entered the commands you mentioned to purge any trace of the NVIDIA drivers. The result was a completely black screen after the reboot.

Although I have to say that I entered those commands from GRUB recovery mode. I don't see or know of any other way to enter them. Keep in mind that I no longer have the old 2070 card, so I no longer have graphical access to the system. So I don't know what you mean when you talk about using a tty terminal via Ctrl+Alt+F3. If you could please explain to me exactly how to proceed, I would be very grateful.
Regards...

[skyfishgoo]

does you m/b support video out at the i/o panel in the back? does you cpu have a graphics capability? do you know what CPU is installed?

a tty terminal is what you get if you don't launch a desktop environment... it's just a basic terminal login prompt.

but you will need a screen to see it on and without an igpu on the CPU then there is nothing for a monitor to see.

but you said you can see grub, correct? so you can get a video signal, just not the KDE desktop?

if so then boot to the "black screen" and type Ctrl+Alt+F3 and you should see a login prompt.

log in and run those commands from there.

another option if you can see the grub screen is to go into recover options and think there is a login option there as well.

the grub prompt is not going to take you anywhere because you have not launched the OS yet.