PC to HDTV via HDMI

BDHill · **24th February 2008, 09:08 AM**

Hi,

I recently purchased a number of items to get a little home media centre going. I purchased an HP DV2754TX Notebook, an LG 47" Full HDTV, Logitech DiNovo Edge and HDMI cable.

As some of you are probably aware, the HP notebook comes with HDMI output. I bought it purely for this reason so that i could connect the notebook and the TV to allow me to browse the web, check emails and watch DVDs using the Notebook, all displayed on the HDTV screen.

When i plugged everything in, it all seemed to work fine. The scaling etc was fine. However i first tested my new system by trying to play a dvd. When playing i found that i was getting some horizontal lines like the tv wasn't refreshing properly. This started to concern me.

Next i just started doing some basic web browsing. When viewing websites where i need to scroll down (even very slowly) i found i was getting the same thing.

I would like to know why this is happening and how i can fix it? Is it the graphics card? is it the HDMI cable? is it the TV?

I am hoping that someone out there knows exactly what i am talking about and how to fix it. Your help would be greatly appreciated.

Regards,

Ben

logifuse · **24th February 2008, 12:26 PM**

Hmm,

There could be a couple of potential issues.

It sounds like you might be feeding the panel an interlaced signal? What is your graphics output set to (both desktop & VMC - they can be set independently)? For best Australian video results it should be 50Hz (1920x1080@50Hz).

The problem with that is that your notebook's graphics adaptor might not be up to the job of outputting 1080p (especially while playing video), although an 8400GS probably should be up to it. Maybe try setting the graphics memory higher in the BIOS if possible - you can usually set it within a range. It will usually be set to a default of 128MB - 256MB is probably what you need.

Justin