Ubuntu 20.4.6 LTS Nvidia legacy 340 driver and external monitor

[Grizzlly]

>> following instructions re the 340 bug 

> (?)

Sorry I missed the lonk thought it had already been mentioned by others 

https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/19389
78

Last response near bottom was the one I then followed

sudo add-apt-repository ppa:kelebek333/nvidia-legacy
sudo apt-get update
sudo apt install xorg-modulepath-fix

>> The other (duel booted) OS I'm less clear as it has passed thru 19.04 all
>> the way to 24.04 at some point did the same process 

>The "same process" as what, though? 

see above