[9] Review request for 8022810: Cannot list all the available display modes on Ubuntu linux in case of two screen devices

[Semyon Sadetsky]

Hello,

Please review fix for JDK9:
bug: https://bugs.openjdk.java.net/browse/JDK-8022810
webrev: http://cr.openjdk.java.net/~ssadetsky/8022810/webrev.00/

Xrandr's XRRGetScreenInfo cannot be used to get display modes in case of 
Xinerama because there are no root windows for individual screens.
It is replaced with XRRGetOutputInfo wich is the correct way to  get 
modes for Xinerama screens.

--Semyon