I am using Fedora 23 GNOME with a Dell Precision m3800 with a default 3200x1800 resolution. All system tools (like terminal, nautilus) are displayed in a pleasant way. Even Google Chrome, or some few other installed software are looking good. But most of the installed application are not optimized for this resolution or rather that small, that almost no one can read it (at least me not). I thought, well, just change the resolution to 1920x1080, what I did. No almost every application has a pleasant size, but fonts, images, everything looks just not in HD anymore. Images or fonts looking pixelated etc.  Any idea how I can get this fixed? Do I have maybe to install a graphic driver (even if this is not recommended)?
After changing resolution, pixelated screen
fedora;display