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Help please! I changed my resoultion and lost the HDMI signal to my TV

Last response: in Graphics & Displays
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February 4, 2010 11:40:23 PM

Hey, I've exhaust every option to troubleshoot this, but to no avail. Please someone help me!!

The situation is that I have an HP Desktep and monitor that I wanted to connect to my 42' Samsung Plasma 4 400 series TV.

I installed a PowerColor HD3450 (ATI Radieon graphics card with HDMI out) in the Tower and upon booting the computer both my TV and Monitor displayed my desktop.

Right away I noticed the picture on the TV was alittle pixely, so I changed the resoution and instantly my TV displayed "No signal" and has ever since. At that time I had no installed any drivers or software. Merely plug and play. So I install the drivers and played around endlessly with Catylist Control Center and tried every resoultion possible.

HELP PLEASE !
February 5, 2010 2:07:33 AM

So for whatever reason now, it seems the ATI HD3450 card won't output concurrently to an LCD Monitor & TV. Orginally both displays worked simualtanously, but now the tv only works when plugged in alone or before the monitor....WTF



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