I have just gotten into this whole A/V shindig.
I have this issue with video playback and streaming from my laptop to my tv. My issue is that when video is played, there is a horizontal line scrolling down vertically. It's almost like a wave that ripples all the pixels. I have tried various controls and can't establish where it is coming from.
-This occurs with HDMI or VGA.
-Also occurs with either streamed media, discs, or downloaded video.
-Occurs on laptop battery and AC power but seems not as frequent on battery (my house is not grounded properly)
-does NOT occur with other laptops
-switching HDMI ports and cables does not matter
-switching tv outlets does not matter
-switching laptop outlets does not matter
-still occurs if using other monitors
If I just watch video on my laptop it works fine unless in full screen, then the frame rate seems to drop when the video is panning or other fast motion scenes.
I have not tried my laptop at another house yet
My setup consists of
-LG 55" LED 55lw5600
-Asus gt50 vt laptop (or something like that) with nvidia 9800 gm
-Adcom GFA 555 amplifier
-Adcom GTP 450 pre amp
-Martin Logan Aerius I speakers
-no name HDMI or acoustic research top of the line
-no name vga or monster vga
Currently they are all on the same breaker however running just the tv and laptop still gives me the problem.
My diagnosis is that my laptop graphics card is dying. I appreciate any and all thoughts. Thank you.