[SOLVED] Black screen after install

sudo nano /etc/default/grub

Add the nomodeset parameter so it is "quiet splash nomodeset":
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"
Then, ctrl+x to exit, the y key to say Yes to Save, then the enter key to save current configuration.
The terminal will revert to normal - now, run sudo update-grub and the parameter will be permanent.

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DOES this work for 'Focal'

Yes, this will work on focal.

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