I have a monitor with resolution 1440x900, 19 inch, whose PPI is 89.37.
I can set the screen DPI with command:
# xrandr --dpi 100
But the problem is my monitor's PPI is only 89.37, how can
xrandr command sets the monitor's DPI bigger than PPI? (From my understanding, PPI is monitor's property, and it cannot be changed, but DPI is something that can be tuned to get a better display, am I right?)
So, my problem is:
- What happens beneath OS (or how OS handles this?) if the DPI is bigger than PPI?
- What happens if the DPI is bigger than PPI?