Radeon GFX Card, Brand New LG Smart TV, Picture just doesn't look right

jason_1975

Honorable
Sep 11, 2012
5
0
10,510
Last night I replaced an older 32" HDTV I use both as a TV and Monitor with a brand new 42" LG Smart TV (see below for all specs). The TV itself has an amazing picture and I'm really happy with it.

Problem: When I use it as a computer monitor (HDMI cable), it looks less than stellar. I remember having this issue with my last HDTV when I used the HDMI cable. I eventually switched to using a VGA cable and the "PC" port on the TV and the picture looked significantly better. This TV doesn't have such a port. Mostly the image looks slightly "off", like it has far too much contrast. I played around with the Catalyst settings and removed the oversample correction, but can't figure out how to get the picture to look better.

I've searched around but can't seem to find a good answer or place to start fixing this.

Your help is greatly appreciated.

My PC Specs:
Acer Aspire AM3970-UR14P DT.SJYAA.003 Desktop PC -
3rd Gen. Intel Core i5-3450 3.1GHz,
8GB DDR3
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7375900

My Graphics Card:
XFX FX775AZNJ4 Radeon HD 7750 1GB DDR5 CI-Express 3.0 x16 Video Card
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150663

My New Smart TV Specs:
LG Electronics 42LB6300 42-Inch 1080p 120Hz LED Smart TV
http://smile.amazon.com/LG-Electronics-42LB6300-42-Inch-1080p/dp/B00II6VT0S/ref=sr_1_1?ie=UTF8&qid=1406141011&sr=8-1&keywords=lg+smart+tv
 
I've got a similar LG TV hooked up to an AMD card as well and ran into a similar image quality problem. One thing to consider would be the quality and spec of the HDMI cable you are using. Cheaper cables without much shielding can pick up a good amount of interference around media components and have some signal degradation.

The solution for my LG TV was to actually turn on the power saving feature. I alternate from low power saving in the daytime with a lot more ambient light to the medium power saving feature at night. Without the power saving turned on, the picture looked just like you describe, the highlights were blown out and the colors seemed over-saturated or washed out depending on specific color/value.
 

jason_1975

Honorable
Sep 11, 2012
5
0
10,510


Thanks for the response. I don't think it's the HDMI cables, since I'm using 6' BlueRigger ones:
http://www.amazon.com/BlueRigger-High-Speed-Cable-Ethernet/dp/B005KWHJES/ref=sr_1_4?ie=UTF8&qid=1406218294&sr=8-4&keywords=high+quality+hdmi+cables

I'll swap out the cable for another one and see if it makes a difference.

I did turn the powersaving feature off, so I'll turn it back on tonight when I get home and see if I get an improvement. I hope so, but given how similar this issue is to my previous HDTV, I'm thinking that it's something I'm missing in the settings.


 

jason_1975

Honorable
Sep 11, 2012
5
0
10,510
I ended up fixing the picture that night.

The TV itself had a "gaming" picture mode, which was exactly what I needed. I also did more with the setup menu (select the microphone button, then push the gear icon to get there) on the TV itself. In the end, the only setup I needed to do on the computer side was remove the oversampling correction through the catalyst control panel.

Looks great!! Love the TV!!