Figure This One Out...

Pulse · 24 Sep 2010 at 01:29

Trying to figure out what's causing interference on my TV, I posted in GH as I know it's to do with my pc as it's only poor or scrambled signal when my pc is on. I did a little read up and some people suggested that it might of been something to do with the power lead not being earthed correctly, so I changed that to no difference.

But I noticed that when booting up my PC there was no actual interference until just before the log on screen was shown which would lead me to think that it's a component inside that causing the problem, straight away I though it must be my wireless card, but when I checked it was disabled, not sure if it can cause interference by just being plugged in, I might have to take it out and find out but other than that I don't know what's causing the problem :confused:

Things that are connected to the PC. USB keyboard, USB mouse, USB iPhone dock, LAN cable, 3.5mm audio jack, DVI monitor cable, HDMI cable for TV output.

Any input would be appreciated as it's doing my nut, worse affected channels seem to be Dave and Dave Ja Vu, so bit of a PITA when they're probably my most watched channels.

rickh · 24 Sep 2010 at 01:47

since the only wireless component in your pc is the wlan card, makes sense to take that out first!

Pulse · 24 Sep 2010 at 02:09

Right taken it out, still no different.

Video added:

Pulse · 24 Sep 2010 at 02:26

It seems to be my HDMI cable. After disconnecting it from my 4850, the signal went back to completely fine. After I had reconnected it and the computer detected it correctly with the little sound it makes for new hardware the picture was once again scrambled.

Also after going into ATI CCC and disabling the screen it was also fine once again, how strange is that?

Greboth · 24 Sep 2010 at 08:57

I can't watch the video at work but if I have read your opst above correctly, I have a similar problem though my monitor only causes interference for about 10 - 20 seconds when first turned on. I have tried to figure it out also, as other things cause a similar problem, but with no luck. I also suffer the problem when we have lightning storms so I can only presume it is all down to a similar electric fields generated, though on a smaller scale with monitors to tv's.