I have an HTPC driving a 48" JVC LCD screen. Its display is 1080p.

The OS is Ubuntu 16.04.3 LTS

Grub 2 controls the initial boot resolution (grub menu) and works OK.

However, once the OS is loaded the display goes to 1080i, which is not supported. The screen becomes a mess and is not readable.

I managed to configure the desktop once it loads to the correct 1080p setting. However, logging out returns to 1080i, making it almost impossible to log back in. A cold restart is usually the only option.

Similarly ALT + CTRL + SHFT + F2 gives a shell screen that reverts to 1080i.

Does anyone know how to configure the OS to display a non interlaced resolution when it first loads?

Thanks

Read man xrandr, i never used but im fairly certain its what you need to use.

Yea, I tried that awhile back. My head eventually ceased spinning and the pain stopped.

Maybe if I can find a non obfuscated plain english guide. Googling now to try again

NB: I think it only sets the resolution for the active desktop, not the OS

@justmy2cents, thanks for the encouragement.

For the record;
Open a command line shell

#installs arandr - a GUI to help you write a screen config file.
Use arandra to create a screen configuration file. Save the file to somewhere accessible. I used /home/me/.screenlayout/myscreen.sh - I think you may need to make it executable as well with chmod +x

If using lightdm , from the command line
Add the following lines in the [SeatDefaults] section

This hasn't entirely solved my issue but it does configure the screen resolution just before the log in screen, meaning that for the session and user session the screen resolution is likely to be useful.

Cheers.











Then open a command line shell:

sudo