Hi,
Two years ago I purchased a new system with a ATI Radeon HD 4890 1GB card.
My computer ran pretty much perfectly, even when I added a second monitor to the system.
A week ago, the second screen began flickering every so often. Or, 'flickering' is the wrong word. The screen would go dark for a second, and then turn back on. Repeat every five seconds and then work smoothly for half an hour or so before it would go dark every fifteen seconds or so. Very random in other words.
A few days ago the second screen wouldn't even turn on. Even when I click on Extend Desktop or Detect Display in the Catalyst Control Center from ATI.
And yesterday the second monitor (HP w2207h) decided not to turn on at all. Or rather; it does not detect a signal and stays dark.
I figured it had died on me. However; when switching the cables around my second monitor works perfectly and the main monitor went dark instead. In other words; I'm fairly confident there's something wrong with that particular DVI port on my graphics card.
To make things even stranger; I can connect my HDTV to the second port and it works perfectly. It's just my computer screens that don't work.
Any help would be greatly appreciated!
If it helps, my system info is:
Windows Vista 64 bit
Intel Core i7 920 Quad-Core Socket, 2.66Ghz in a main board ( Asus P6T Deluxe V2) with 6GB RAM (Corsair).
Two years ago I purchased a new system with a ATI Radeon HD 4890 1GB card.
My computer ran pretty much perfectly, even when I added a second monitor to the system.
A week ago, the second screen began flickering every so often. Or, 'flickering' is the wrong word. The screen would go dark for a second, and then turn back on. Repeat every five seconds and then work smoothly for half an hour or so before it would go dark every fifteen seconds or so. Very random in other words.
A few days ago the second screen wouldn't even turn on. Even when I click on Extend Desktop or Detect Display in the Catalyst Control Center from ATI.
And yesterday the second monitor (HP w2207h) decided not to turn on at all. Or rather; it does not detect a signal and stays dark.
I figured it had died on me. However; when switching the cables around my second monitor works perfectly and the main monitor went dark instead. In other words; I'm fairly confident there's something wrong with that particular DVI port on my graphics card.
To make things even stranger; I can connect my HDTV to the second port and it works perfectly. It's just my computer screens that don't work.
Any help would be greatly appreciated!
If it helps, my system info is:
Windows Vista 64 bit
Intel Core i7 920 Quad-Core Socket, 2.66Ghz in a main board ( Asus P6T Deluxe V2) with 6GB RAM (Corsair).