I have an "ATI Mobility Radeon HD 5650" Graphics card, with 1 VGA and 1 HDMI port, + main monitor on my laptop and 2 external monitors. I'm trying to connect my third monitor but whenever I try to "extend desktop to this display" the other external monitors goes off.
I just tried it on Ubuntu and the 3 worked perfectly. On Windows 7 they are not, also tried Catalyst it does detect 3 monitors but when I go to Create Eyefinity group, it only shows 2.
I tried having Windows 7 auto update graphics card drivers, still same problem.
Any ideas ?