February 22, 2009

DVI-to-HDMI input on the LG Scarlet

Filed under: Electronics, Technology — spiro @ 6:12 pm

I got myself a nice little present on Black Friday, which to get I had to wait in the wee hours in the morning in Renton’s Fry’s. I got the LG Scarlet (52LG60) for $1200. Not bad :) Anyway, so this is like the obligatory “show and tell” post…

One of the things I wanted to do with that TV was hook up an eventual media center PC. Now all I have on it is my Macbook Pro :)

So, First thing I tried hooking it up through VGA with an old monitor cable which wasn’t great, until my Monoprice order arrived. In it was a VGA+Audio cable along with a DVI-to-HDMI cable. Great, let’s try HDMI. I was expecting a crystal-clear picture, but that’s not what I got. The picture had a reduced color depth, super high contrast and the text was bleeding. So, I tried different things, including disabling ClearType which made it worse, so here’s what worked.

Display settings

Set resolution to 1920×1080 at 59Hz. You might have to click the Force button on the ATI settings dialog. The 59Hz part Intrigues me. If I pick 60Hz on HDMI, the TV says “Invalid Format” and on VGA it shrinks the picture to 4:3 aspect ratio, even if 1920×1080 is widescreen.

ati-set-refresh

Set the overscan to MAX. If you don’t, you won’t get 1:1 pixel ratio, which means the image will be resized. You DON’T want that.

ati-set-overscan

TV

Selecting overscan will hide the edges. Set the aspect ratio to Just Scan. Just Scan is just fancy terminology for 1:1.

tv-justscan

Disable the variety of picture enhancements. They mess around with the color depth. Video looks good, but your desktop won’t. I do leave the intelligent sensor ON.

tv-advanced

This improved the picture quite a bit, although it’s still not to my liking.

tv-textappear

The vertical lines seem OK, the horizontal ones, not so much…

tv-colorlines

The “info” bar and input list:

tv-inputinfo

tv-inputselect

The I/O Panel

My biggest complaint is the lack of analog audio out, it only has digital RCA and optical audio out. I don’t have a surround system yet, just a bookshelf stereo system, and I don’t care much for them.

tv-rearinput

tv-sideinput

So, I had to get this thing from GefenTV. Cost me around $70. The only problem is that it won’t decode dolby, just LPCM. They just came out with this guy that will do Dolby. I might just get it eventually.

tv-audio

And here’s my stuck pixel, located around the center of the screen. As you see, the green pixel is black (always ON), so the effect of this is that the pixel is magenta. I’ll try running one of the tools that displays white snow. I’m a hesitant about using a pencil or eraser on it. I don’t want a dent on the surface.

tv-stuckpixel

And here’s how the logo looks :) It’s quite nice actually, but if the LEDs annoy you there’s an on-screen option to turn it off. In case you are wonering, it is totally transparent, behind is the wall (you can see the texture on the wall).

tv-logo

1 Comment »

  1. Thanks for this – the just scan option was what I was missing – output is perfect (ish) now!

    Comment by toby — April 28, 2009 @ 4:42 am

RSS feed for comments on this post. TrackBack URL

Leave a comment