Hi all,

Am currently running my systems HDMI output through my lcd tv and it runs fine, however when I switch the input source on the tv to another type (ie Svideo or Scart) and then switch it back to HDMI it will only return with a blue screen saying that there is no signal.

Have been using ATI catalyst control center with desktop area set at 1152*648 (have also tried 1280*720 with a 60hz refresh rate.

Any help would be much appreciated.

System details are

AMD Athlon X2 5200+ Processor (AM2)
AMD 690GM-M2 Motherboard
ATi Radeon X1250 Graphics (SMA)
2048MB DDR2 PC5400 Memory

TV details are

10 Years
Discussion Span
Last Post by dogbreath077

I've seen some video cards that will detect the presence of a TV, and enable the appropriate options for the detected configuration. My Nvidia is like that. If I don't have everything connected, it won't give me the option to change any settings. I believe your video card is detecting a disconnected connection and recognizing it as a lack of a TV altogether, thereby shutting off the video stream to that cable. Look in your video card control panel and see if there is a redect sequence, or an autodetect option that can be enabled. In my Nvidia control panel, I have a redetect sequence that I must do everytime I touch a cable or connection device. Good luck, and repost with results.


Thanks for the suggestion, it's much appreciated. I have checked the settings in control center and there is a setting that forces tv detection, I have enabled this but it still wont display once I shift back and forth between sources.


If forcing a detection doesn't work, then report it to the video card manufacterer. This may be a bug they need to fix, or possible already have a patch for.

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