What are the steps you need to adapt Ubuntu on a fresh installed Laptop with a high resolution display?
I have a display with 3200x1600px on only 11'' which is all realy tiny.
There are some steps to take:
1. System wide Menu and titlebar scaling
Starting with 14.04 we have an option that helps a bit:
open the System Settings (here in english:)
Go to "Displays" and set the "Scale for menu and title bars":
see also: How to find and change the screen DPI?
2.increase unity dock size
3. adapt Firefox
(or use Chrome, which works fine since Version 41.0.2272.76 Ubuntu 14.10)
4. increase font in Pidgin
There is a plugin you can install
Then you can increase the font in Plugins->Extended Prefs
5. create starter for applications that still don't scale
Some applications still don't obey the global scaling (mainly java) for those few applications you can create a starter to only How can I scale Java-based applications up for a high DPI screen?
in older Ubuntu versions, with unity-tweak-util in the section "Fonts" you can set the "Text Scaling Factor" to 2.0. This will scale the fonts in most applications to double size.
Go to System Settings and then to displays. Look for "Scale for menu and title bars." then drag the slider to whatever size you want.