Ubuntu
linux package

  1. Bug #1871721
  2. Comment #18

Comment 18 for bug 1871721

Revision history for this message
Nhlaluko (ngjmasingi) wrote : Re: Second Monitor on HDMI blank screen with Nvidia & Ubuntu 20.04? (ASUS Laptop)

I've been struggling with this all day. My solution (on Ubuntu 20.04) is to downgrade to nvidia driver 435.
Change gdm3 to lightdm.

In that exact order

apt install nvidia-driver-435
apt install --reinstall lightdm ubuntu-desktop

The bug is in driver 440. Also confirmed this in Arch Linux as well.
gdm still doesn't allow HDMI output even in 435.