Downsampling on VGA - screen doesn't fit

[Damngineer]

As the title explains, i tried to downsample on VGA with my HD6570, i downsampled using Catalyst Control Center, the brightness was low and the screen didn't fit at all. Also when i tried to fit the screen i got weird colour changes.

I am using a 1080p monitor, trying to downscale 1440p. Using a Samsung monitor that only has a power button, holding it down for 10 sec to try for auto calibration, that doesn't help.

Everything looks okay on this screenshot.

Changed these settings to make the 2K resolution visible on Windows.

 

After this point i changed to 2K resolution, but got brightness and colour errors etc., screen didn't fit.

 

Adjusting these settings to make it fit, didn't worked. The shrinking buttons were not enough to fit it.

After i couldn't find anything to do it with Catalyst (i wish AMD had a tool to make it easier), i used CRU (Custom Resolution Utility 1.1.2 by ToastyX) to do it, created the resolution and restarted, it didn't fit as well.
I think i need to be an expert to understand this:

 

Any help on fitting the screen to make it look okay?

My GPU doesn't support 1080p 75Hz as well, but supports higher resolutions at 75Hz, that is also weird.
After i saw that i can't downsample 2K, i think it would be a good idea to set up 1080p 75Hz.

I enabled EDID at Catalyst prevent Catalyst from screwing everything.

 

Tried out this to have 1080p 75Hz, but obviously screen didn't fit on this one as well. But it was 75Hz lol.

 

How should i set these to get 1080p 75Hz?

Also note: 75Hz came up when i tried to set it on Windows.



Welp, i need you guys' help


Note: I am not English, so pardon my spelling if i said anything wrong.
Note2: Sorry for posting too many screenshots, my English is not perfect to explain everything here. And i think it makes it better to have more visuals :3

[Levent]

you are not going to get 75hz out of that panel I can tell you straight away. Lower hz to 63 and start from there.

[ZetZet]

if the screen is messed up then it just doesn't work at that refresh rate, like @Levent said lower the hz.

[Damngineer]

you are not going to get 75hz out of that panel I can tell you straight away. Lower hz to 63 and start from there.

 

if the screen is messed up then it just doesn't work at that refresh rate, like @Levent said lower the hz.

Okay, i will try at lower refresh rates.

[Damngineer]

you are not going to get 75hz out of that panel I can tell you straight away. Lower hz to 63 and start from there.

I have set 1080p 63Hz at CRU and after i restarted and set it, the screen gone full white and got darker from the middle, and stayed full black until it gone back to 60Hz.

What is the cause of this issue? Pixel clock, maybe?

Update: 61Hz didn't fit as well. *sigh*

[bbrooking18]

Have you tried using a DVI cable, most VGA cable standards do not support 1440p or 1080p, the ones that can output to 1080p are WUXGA, QXGA, WQXGA, QSXGA.

[Damngineer]

Have you tried using a DVI cable, most VGA cable standards do not support 1440p or 1080p, the ones that can output to 1080p are WUXGA, QXGA, WQXGA, QSXGA.

My monitor only has 1 VGA input. 1080p 60hz.

[bbrooking18]

My monitor only has 1 VGA input. 1080p 60hz.

Okay, check your cable standard, not sure what else would be the cause

[Damngineer]

That's bad. Even my onboard graphics can display 1080p 75Hz.