Black screen after nvidia driver update

[MatthewP]

Hello, today decided to update my nvidia driver to 525. Rebooted the pc and all I see now is a cursor (underscore). Funny thing is the cursor isn't blinking and I can't type anything. CTRL+F2 does not open the terminal.

I don't know if it's worth mentioning but right before the black screen with static cursor I get a message 'unrecognized AMD processor' however doubt its related as it was working fine before nvidia driver update.

2080ti

Zorin 16.1

Thank You!

[MatthewP]

Hi thank You for the reply, the driver I installed was the one which said (proprietary, tested) next to its name. I can't launch the recovery option, I have dual boot zorin/ubuntu, grub is on ubuntu drive, I can only launch zorin if I select its drive and it just skips grub menu, if I spam 'ESC' key while booting zorin I can enter the grub terminal. Whenever I try to launch zorin directly from grub menu, regardless if normal zorin boot or recovery I get an error saying 'error: file '/boot/vmlinuz-5.*****-generic' not found' and 'You need to load the kernel first'. This is very confusing to me.

I wanted to install them both to separate drives with their own grub, however ubuntu has an annoying bug which hasn't been fixed in a long time now, even if You specify where You want the grub installed it will not do that and it will just override the other grub install.

Would it be possible to delete/disable the driver in some way from my ubuntu installation?

[Michel]

@337harvey

I to switched to the 525 driver, but it didn't install correctly and was unable to revert to the 510 or 515 driver. I'm still running on the XORG driver, content for now until the kernel is patched at the 15.5.0-56 level (patches are always in the newer versions first and rolled back to the older versions).

I really wonder why zorin has so many issues with nvidia drivers, on pop os i have zero issues and running the 525 driver a few months by now.

[MatthewP]

Thank You for information, however I'm still not sure how to recover from this as I am not able to boot into zorin recovery mode from grub thinking maybe I'll have to reinstall.

[MatthewP]

So after almost 3 months managed to get it working, just going to leave this here in case anybody has the same issue and stumbles across this.

Somehow after powering off zorin unsafely allowed me to see the zorin options thru its bootloader, managed to delete the nvidia driver and purge everything, however none of the recommended drivers from software application worked, tried updating kernel headers and many other things, what worked in the end was:

1. Purge all nvidia drivers.

2. Download the driver from nvidia website.

3. Blacklist nouveau driver.

4. Reboot.

5. Install the nvidia driver.

Now all works fine