I updated to crimson on release day only to find that you removed the option for me to extend my desktop to my tv. I downgraded and thought oh well it will be fixed soon, I now upgraded over two months later to find the same issue.
It is impossible to just simply extend your desktop to a third monitor and the drivers don't even detect my TV until I try to create an eyefinity group which I do not want, I have a primary monitor for main task, a side montior for overseeing certain things and I just want to have my tv as a TV sometimes.
For now I will need to downgrade again but if this is the path AMD is taking I will have to switch to Nvidia for my next GPU.
Same issue here (please read!):
You have to enable/disable monitors via windows screen settings (right click on desktop, 3rd last option).
Still waiting for a response from AMD regarding that issue...