I am using Ubuntu in VB so I can get the hang of it and eventually switch to Linux. However, I have a 4k screen (I forget the exact pixel by pixel but I can find out if I must) and everything is downscaled way too small to the point I have to put my face right in front of the screen to see what i'm doing. Things like apps and the time. How do I upscale everything so I can actually see what I'm doing? Thanks in advance.