I have two monitors connected to PC DisplayPort using DisplayPort-DVI converter. Samsung SyncMaster EX2220 and B2240. Ubuntu 16.04. Videocard is Intel® Haswell Desktop
Problem that second monitor can't work on highest resolution 1680x1050 - it loses signal immediately when I set it. It works only when I set 1440x900 (second in list) or below.
What is wrong? First monitor correctly works at maximum resolution (1920x1080).
Everything worked before upgrade from 14.04 to 16.04