Fuzzy picture when connecting Sharp TV to Computer

[Oribnyo]

Hello.
When i connect my PC to my Sharp TV via HDMI Cable the picture on the TV looks fuzzy, grainy and blurry.
my PC is brand new, and when i connect it to my other Philips TV its looks Perfect.
i think the problem is that my TV doesn't process the signal like it should.
Solutions that i have already tried:

1. Connecting another computer - Same bad picture
2. Changing the HDMI Cable - same bad picture
3.Change the Source name from "HDMI-1" to "PC" - i was reading some internet solutions that said Changing the Source name from "HDMI 1" to "PC" can solve the problem. I searched in the settings and there is no such option in my TV.
4.changing the Resolution and the Refresh Rate - still bad picture.
5.When i am connecting Computer to TV through VGA the picture looks perfect - but the computer i want to permanently connect to the TV has no VGA - so it cant be a solution for me.

TV model: Sharp LC-40LE530E

any suggestions?

 

[ttimberlak443]

Does that computer have a DVI-I output? If it does, then you can just use a converter from DVI to VGA.

Another thing to consider is some TV's have a "Game Mode" that you can toggle on and off. When game mode is on, it does little digital processing, resulting in decreased video quality. This is done to reduce response time.