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TheRemote / Ubuntu-Server-raspi4-unofficial

Ubuntu Server 18.04.4 Raspberry Pi 4 Image + Build Script (unofficial)
https://jamesachambers.com/raspberry-pi-4-ubuntu-server-desktop-18-04-3-image-unofficial/
Apache License 2.0
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Screen resolution #100

Closed olevenets2 closed 4 years ago

olevenets2 commented 4 years ago

Hi, I am using an old Samtron 76DF CRT monitor. Ubuntu determines the working screen resolution is not correct due to which the image is slightly distorted. I found the correct refresh rate for my monitor using xrandr, but this does not work for the gdm login manager and tty consoles. Maybe I need to generate my xorg.conf, but I ran into a systemd-logind problem which prevents me from creating a script. Maybe can make the monitor issue the correct edid, but how to do it?

TheRemote commented 4 years ago

Hey olevenets,

I would try the options in /boot/config.txt or /boot/firmware/config.txt inside Ubuntu. There are a lot of config.txt options to adjust screen output/refresh rate/resolution/etc.

Let me know if you need further assistance!