Ubuntu Server 19.10.1 not showing screen's left side

[chrix]

I've installed Ubuntu Server 19.10.1 for Pi without a hitch. It works as expected BUT I can't see the left side of the screen, which makes editing txt files close to impossible. I'm connecting my RBPi4B to an OLED 4K LG TV. Any ideas?

[hwang4]

Please check the value of xres and yres, maybe change them could fix your issue.

[chrix]

Where would I change them? Fbset doesn’t come installed, I installed it but don’t see any changes when I try enforcing geometry. I use tty only.

[chrix]

I solved it, in the end I had to add a few lines in /boot/config.txt to change HDMI group to DMT and try different HDMI modes until getting one showing the screen properly.