https://bugs.freedesktop.org/show_bug.cgi?id=51652
--- Comment #3 from okias d.okias@gmail.com 2012-09-11 13:45:48 UTC --- Created attachment 66971 --> https://bugs.freedesktop.org/attachment.cgi?id=66971 picture.jpg
after upgrade from 3.6.0_rc2 to rc4 second monitor works with clone (absolute 0 0 both), but extending desktop cause this (absolute 1920 0 and 0 0)