Poor image quality using HDMI cable

famas · 27 Nov 2013 at 21:20

Hey all.

I have an older AOC HD ready tv that I use with my pc and to watch telly.

It only has HDMI ports and a VGA port.

Until recently I've just used a vga cable with a dvi converter into the graphics card and all works fine apart from I get horrible banding on white or black backgrounds which I just put up with.

However I recently bought a HDMI cable to use instead of the vga but when I use the hdmi cable the image quality is really bad.
Image looks very grainy and text is all blotchy.

I've tried all the different settings in CCC and nothing makes any difference.

I've done a search and read a few people have had similar issues on other hd tv's but I cant find a resolve.

some people have suggested to set the hdmi port to PC on the tv but my tv wont allow that, it seems pc is fixed to the VGA port.

Am I just going to have to face the fact that my tv is just not compatible with a hdmi connecting from a pc or could it be something else?

any help is much appreciated.

famas · 27 Nov 2013 at 22:22

Cheers for the reply.

The tv's resolution is 1280x768 and I've tried every resolution option available.

I'm not sure its a resolution problem than something else?

famas · 28 Nov 2013 at 18:34

Cheers for the help guys.

I'll give the above link a try or get a new monitor which i think will be easier

famas · 28 Nov 2013 at 20:45

Can't check that right now As i'm using the vga cable but is that the settings along the lines of RGB 4.4.4?

If so I tried all available options and it made no difference.

If I where to force a resolution as in the link above using "powerstrip" should I use 1280x768 or 1366x768?
I'm pretty sure I've tried both of those already with no luck.?

famas · 30 Nov 2013 at 13:18

Right quick update.

After a good few hours messing around with powerstrip trying all sorts of different settings and configurations I've still had no luck getting it to work.

Seems this TV just cant display a good pc connection via the HDMI port.

On a side note I borrowed an LG full hdtv off my brother and it worked perfectly.

famas · 30 Nov 2013 at 17:40

cheers for all the help aatu.

Just done a quick search on the TV (should have done this first) and it seems the native resolution is 1366x768

I tried several different resolutions in powerstrip, including 1366x768 at 60hz and it didn't fix the issue.

The TV's options are extreamely limited, In fact I have no options other than to change the format from auto to 4:3 or 16:9.
I can change the colour options and the phase?
there is also an auto sync option which doesnt seem to do much? and thats about it.

I dont have a DVI cable, I only a VGA with a DVI adapter and a HDMI cable.

Would a DVI to HDMI have different results?