after updating to crimson,i lost one of my monitores, the monitores are connecet to 2 pcs of radeon r9 290x via displayport, i cant get a picture from the second card,
hope you can help me
Please try disconnecting the monitor from the graphics card and reconnecting it again. Additionally, please try disconnected the monitor and try uninstalling the Crimson drivers. Download and run the AMD Clean Uninstall Utility and try a fresh install of the newer Crimson 15.11.1 Beta drivers, available here.
If this does not resolve your issue, please report it here. I would recommend rolling back to the last working Catalyst drivers for your system.