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LCD-LED TV as monitor issue

post #1 of 9
Thread Starter 
Sure this has come up before but....My issue is my buddy has a Vizio 22" TV that he is using as a monitor, max resolution is 1920*1080 at 60hz. His graphic card supports it, its a ATI HD4000 series. The problem is that its unfocused, grainy, not crisp at all...the vexing thing is that I had a similar issue with my own TV and was able to resolve it, cant remember how though....any input would be appreciated.
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post #2 of 9
It is possible that the TV is not displaying at its native resolution but at a lower resolution. Or, the refresh rate is incorrectly set at 59Hz (vs 60Hz).

-How is the card connected to the TV? From card's DVI output to which input of the TV?
-Using what cable? DVI-to-DVI cable?
-Some HDTVs cannot display at 1920x1080 (60Hz) when it is connected to a PC via certain inputs. Check its manual. What model number is that TV?
-How is Catalyst Control Center configured? Specified a 1920x1080 (60Hz) output to the HDTV?
Edited by windfire - 7/18/11 at 11:49pm
post #3 of 9
Thread Starter 

I'm sorry for my lack of detail,
DVI to HDMI
regular HDMI cable
According to the manual it supports the above resolution via HDMI
M220VA here's a link:

Yes
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post #4 of 9
OK. Connecting the card's DVI output to one of the two HDMI inputs of the TV is good. Using a DVI-to-HDMI cable is proper.

My suggestions:-
1) If he is still using a rather old driver, update to a more recent one like CCC 11.5 or 11.6.

2) Inside CCC, under HDTV Support, enable all the options for NTSC and HD. Click 'Apply'. See diagram 1 below.

3) Reboot and see if it works.

PS Does this problem happen only for gaming? movie watching? Browsing too?
post #5 of 9
To be honest bro i have the same issue with my vizio. Dark blues are really hard to read and not every color of text is readable or crisp.

Your best bet is to use window sharpen text effect and calibrate the screen for right color and gamma.
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post #6 of 9
Thread Starter 
Quote:
Originally Posted by lilraver018 View Post
To be honest bro i have the same issue with my vizio. Dark blues are really hard to read and not every color of text is readable or crisp.

Your best bet is to use window sharpen text effect and calibrate the screen for right color and gamma.
Crap, yeah the text aren't crisp and the screen is grainy...but like I said before I've used other TV's myself as monitors and had the same issues..I think though that tweaking the setting and/or a driver update usually fixed things. What model Vizio do u have?
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post #7 of 9
Thread Starter 
Quote:
Originally Posted by windfire View Post
OK. Connecting the card's DVI output to one of the two HDMI inputs of the TV is good. Using a DVI-to-HDMI cable is proper.

My suggestions:-
1) If he is still using a rather old driver, update to a more recent one like CCC 11.5 or 11.6.

2) Inside CCC, under HDTV Support, enable all the options for NTSC and HD. Click 'Apply'. See diagram 1 below.

3) Reboot and see if it works.

PS Does this problem happen only for gaming? movie watching? Browsing too?
Its just grainy and unfocused period. The drivers are up to date, I had already tried tweaking using the HDTV support but after looking at ur diagram I gave it another look...I was able to get a better picture by lowering the resolution slightly..which drop it to around 1040p. He seems content with that, I'm still annoyed that its not at a fill 1080, but considering the alternative. If you have anyother suggestions I would appreciate it, with that said thanks for the detailed help I appreciate it greatly.
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post #8 of 9
Quote:
Originally Posted by ladope View Post
Its just grainy and unfocused period. The drivers are up to date, I had already tried tweaking using the HDTV support but after looking at ur diagram I gave it another look...I was able to get a better picture by lowering the resolution slightly..which drop it to around 1040p. He seems content with that, I'm still annoyed that its not at a fill 1080, but considering the alternative. If you have anyother suggestions I would appreciate it, with that said thanks for the detailed help I appreciate it greatly.
So, the current resolution is 1920x1040 at 60Hz?
At this resolution, then there is a tiny black line on top and bottom of screen?
If you do not do anything and with the picture being grainy and unfocused, do you see the entire picture no more or no less? Ie no black lines around the edges of the screen and no part of the picture goes into the border?

Perhaps the problem is that there is a slight overscan?
Change back to 1920x1080 and then try using CCC's Scaling Options (pic 1) to do slight adjustment and also the TV's Wide Menu (pic 2).

post #9 of 9
Thread Starter 
Quote:
Originally Posted by windfire View Post
So, the current resolution is 1920x1040 at 60Hz?
At this resolution, then there is a tiny black line on top and bottom of screen?
If you do not do anything and with the picture being grainy and unfocused, do you see the entire picture no more or no less? Ie no black lines around the edges of the screen and no part of the picture goes into the border?

Perhaps the problem is that there is a slight overscan?
Change back to 1920x1080 and then try using CCC's Scaling Options (pic 1) to do slight adjustment and also the TV's Wide Menu (pic 2).
No the resolution was adjusted to 1856 by 1040. The other resolution would have been 1920 by 1036, which made the screen worse. I went back and scaled it again, and sure enough much of the issues cleared up. Most not all as the screen is still not as sharp as say Polariod TV I use..but that might have to do with the TV settings than the video card, I really cant recall how I went about adjusting my own TV.
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