Ubuntu/Ubuntu Mate:How view boot and Install screens with 4K
 

Ubuntu/Ubuntu Mate:How view boot and Install screens with 4K? Seems I'm getting blinder every day? Maybe screen read? ...wisdom truly free.. Maybe will have to have an audio user interface?

In the advanced options of the boot menu, I found something like enable low resolution video mode. will try;
I think the menu is loaded by f7 on startup. will try ... ooh fancy

was in grub menu
 

worked was in grub/startup menu, later you can config Display.