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

Tags:
  • LG
  • TV
  • Smart TV
  • HDTV
  • Graphics Cards
  • Radeon
Last response: in Graphics & Displays
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July 23, 2014 11:47:55 AM

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/ite...

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=N82E168...

My New Smart TV Specs:
LG Electronics 42LB6300 42-Inch 1080p 120Hz LED Smart TV
http://smile.amazon.com/LG-Electronics-42LB6300-42-Inch...

More about : radeon gfx card brand smart picture

a b U Graphics card
July 23, 2014 12:00:40 PM

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.
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July 24, 2014 9:14:34 AM

dwatterworth said:
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.


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-Ether...

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.


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a b U Graphics card
July 24, 2014 10:22:01 AM

Have you tried changing the gamma settings?
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July 30, 2014 9:39:27 PM

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!!
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a b U Graphics card
July 31, 2014 6:30:48 AM

Great! I've seen a bunch of the TV's that are even starting to auto-adjust when a computer signal is present. Cool stuff. Now for a 4k monitor after winning the lottery...
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