Four problems with that :(
* PPAs are not supported.
* This bug is closed.
* You should use bug 1910709 for 20.04.
* Bug 1910709 is also closed.
If the fix provided for 20.04 in bug 1910709 does not work for you then please open a new bug by running:
ubuntu-bug nvidia-graphics-drivers-340
But if you are using kernel 5.10 then you can use bug 1908278.
Four problems with that :(
* PPAs are not supported.
* This bug is closed.
* You should use bug 1910709 for 20.04.
* Bug 1910709 is also closed.
If the fix provided for 20.04 in bug 1910709 does not work for you then please open a new bug by running:
ubuntu-bug nvidia- graphics- drivers- 340
But if you are using kernel 5.10 then you can use bug 1908278.