I have an Acer Nitro 5 and I recently installed Ubuntu 21.10. I noticed a bit of lag when I tried semi-intensive stuff, then realized I was running the Intel Integrated Graphics. I tried multiple steps to try to get Nvidia as the default, and I think I did, but the problem now is my 2nd monitor won't turn on.
When I go into the installation media on the USB, it works as expected. But when I return to my normal, installed OS, it won't work correctly.
I have tried multiple methods, but I am unable to find the links to them all atm, so feel free to pitch your solutions and I'll let you know if I tried it.
Things I have tried: Restarting, unplugging/plugging, reinstalling drivers, switching drivers, and attempted to disable Secure Boot (which I couldn't figure out).
Update: I was forced to do the password stuff and BOK password, now my external monitor works but the internal one doesn't.