black in picture turns green

[heticu]

I have a Toshiba *tube* HDTV I bought 4 years ago, before they quit making tubes. It works well with DVD and Blu-Ray players. However, when I try to use my HP Pavilion laptop, or my new HV358T media player (it plays vids straight from external hard drive) connected via HDMI to my TV, after about a minute, the blacks turn green. The only way to fix this is to turn down the brightness on the TV, but then everything is dark. I have played the same movie from my Panasonic Blu-Ray player, and from the HV358T media player, and this is always the result: The Blu-Ray player looks great, the HV358T (and my laptop) provide poor quality signals. My question is: Is there something built into the disc players that compensates for the tube TV, that my laptop and HV unit do not have? If so, can I buy a device to fix this problem? Thanks for any help! Tim C

[edDV]

I have a Toshiba *tube* HDTV I bought 4 years ago, before they quit making tubes. It works well with DVD and Blu-Ray players. However, when I try to use my HP Pavilion laptop, or my new HV358T media player (it plays vids straight from external hard drive) connected via HDMI to my TV, after about a minute, the blacks turn green. The only way to fix this is to turn down the brightness on the TV, but then everything is dark. I have played the same movie from my Panasonic Blu-Ray player, and from the HV358T media player, and this is always the result: The Blu-Ray player looks great, the HV358T (and my laptop) provide poor quality signals. My question is: Is there something built into the disc players that compensates for the tube TV, that my laptop and HV unit do not have? If so, can I buy a device to fix this problem? Thanks for any help! Tim C

It sounds like a TV failure or error. HDMI digital (16-235 or 0-255) should not be able to overdrive the TV.

Have you tried an analog component connection from the Blu-Ray? Does the problem still exist?

[heticu]

Problem solved. Apparently, HDMI was cutting-edge technology when my Toshiba TV came out in 2004. They did not get the conversion units correct. I switched to composite cables (Y, Pb, Pr) and the problem went away. In fact, I think the color is a tad bit better using these than the HDMI signal from my disc player. Thanks for the input.