/dev/kvm permission denied fix for Android AVD unable to open in Android studio

I did not go through this, since my machine had only 4 GB RAM and was probably too RAM constrained to run the virtual device, but

https://16shuklarahul.medium.com/how-to-fix-kvm-permission-denied-error-on-ubuntu-18-04-16-04-14-04-f04a6e23c0cd

- install qemu-kvm and then give appropriate permission to the current user.

$ sudo apt install qemu-kvm

% add your user to the kvm group.

$ sudo adduser <username> kvm

% And then 

$ sudo chown <username> /dev/kvm