My system has ran without any issues for years with AMD video cards until the latest display drivers. All the previous drivers worked without issue and I install new drivers the exact same way each time.
I'm currently running an Asus R9 290 video card with two 27" monitors at 1440P. A Benq XL2730Z at 144hz connected by display port and a Qnix QX2710 at 60hz connected by dvi. Windows 7.
When I install the drivers and reboot shortly after my monitors will lose sync. First the Qnix drops out and then the Benq. Turning them on and off again doesn't help. I have to reboot the system and it will again lose sync within 5 minutes.
Now when I roll back to older drivers when using the desktop I will get this occasional micro burst horizontal line flicker across the lower center part of both monitors.
What ever you did to the latest drivers AMD please fix it. This is unacceptable.