I am using an XFX Radeon HD 6570 DirectX 11 HD-657X-CNF2 2GB 128-Bit DDR3 video card. And I was originaly able to setup my dual monitors with an extended display, but after a day or 2 the monitor using an HDMI cable starts to have little white dots flashing across portions of the monitor. Then it will randomly turn off and back on again. But if I make it a mirror screen instead it displays just fine and has no problems. I want to have the display extended.
I am running windows 7 with the above video card and 650w 12v power supply. I have switched out the above video card with another almost identical card (built by HIS instead) with the same problem. I have also switched out the hdmi cable. ASUS M4A88T-M AM3 AMD 880G HDMI Micro ATX AMD Motherboard is my current motherboard.
I am running windows 7 with the above video card and 650w 12v power supply. I have switched out the above video card with another almost identical card (built by HIS instead) with the same problem. I have also switched out the hdmi cable. ASUS M4A88T-M AM3 AMD 880G HDMI Micro ATX AMD Motherboard is my current motherboard.
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