I was wondering what happens when I change display resolution (i.e. 1280x1024 pixel) in my OS (Windows XP) does it affect the DPI (PPI) setting of my OS too?
Or when I change the DPI (PPI) setting of my OS does it affect display resolution?
So when resolution changes to lower or higher, according to the formula, something should change to get different value (i.e. 800x600 pixel).
Formula for calculating display resolution:
- Display Resolution (Horizontally) = DPI (PPI) x width of display
- Display Resolution (Vertically) = DPI (PPI) x height of display
Or may be I am missing something? Please enlighten me.
For example:
Technical specs of a PC monitor:
- Diagonal Size = 17" (inch)
- Width = 13.3" (inch)
- Height = 10.64" (inch)
- Screen DPI = 96dpi (The maximum number of pixel (dots) per linear inch this monitor supports.)
- System DPI = 96dpi (The maximum number of pixels (dots) per linear inch Windows XP runs on.)
- Display Resolution or Pixel-Dimension(max or physical) = 1280x1024 pixel
- Display Resolution or Pixel-Dimension(systems or current) = 1024x768
If I change the resolution of above monitor from 1024x768 pixel to 800x600 pixel technically (according to the equation) change happens at either DPI (PPI) or width or height, right? So how are the display settings processed?