Colours patchy, (like 16-bit or 256)

Ayson

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Hi everyone, this is my first post on sevenforums. Was on vistax64 and switched to Win 7 just about a week back. The switch from Vista to 7 was pretty easy unlike XP to Vista.

Now for my problem. I was using a D-sub VGA cable to connect my graphics card to my display (BIG Geforce 8600GT to Bravia KLV-26V300A). The cable was cheap and of poor quality. I guess it had interference issues. If they are of relevence i will post it later. But now i changed to a DVI-D Dual Link - HDMI cable. The problems i had with the other cable are gone. But now the colour gradients are not displayed properly. Its like how you would see it in a 16-bit or 256 colours display. A patch of one shade then a patch of the next, and not a gradual change. It is not as noticable as 256 mode, but it is noticable. Even on the login screen it can be observed.

What could be wrong? I would be grateful for any help. Thank you.

Adding some details:
Eg: The blue on either side of this page has horizontal patches in the area that the gradation occurs.
My resolution: 1360x768, colour depth: 32-bit, Refresh rate: 60Hz. NVIDIA drivers downloaded just a week back.

I'm uploading two pictures.

The first (desktop) is just a simulation, ie. i saved the picture in 256 colours just to show an exaggerated example of my problem.

The second, i created a new black image and used a gradient tool. I can see diagonal patches, but im not sure if others will see it.
 

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Last edited:

My Computer

Computer Manufacturer/Model Number
NA
OS
Windows 7 Professional 32bit
CPU
AMD Athlon II X2 4450e @2.8GHz (Sempron 145)
Motherboard
ASUS M4A78LT-M LE
Memory
2x2GB DDR3 1333MHz Kingston
Graphics Card(s)
MSI R7750 PMD1GD5
Sound Card
VIA HD 7.1 onboard
Monitor(s) Displays
Sony Bravia V Series - KLV-26V300A
Screen Resolution
1360x768
Hard Drives
WD Caviar Blue
WD5000AAKS
500GB SATA
PSU
Corsair CX500 V2
Case
Enterage Generic
Cooling
CM Hyper TX3 EVO, GPU 2x 80mm, Stock PSU fan, 1x80mm cab fan
Is my problem that difficult or am i violating any forum rules?
 

My Computer

Computer Manufacturer/Model Number
NA
OS
Windows 7 Professional 32bit
CPU
AMD Athlon II X2 4450e @2.8GHz (Sempron 145)
Motherboard
ASUS M4A78LT-M LE
Memory
2x2GB DDR3 1333MHz Kingston
Graphics Card(s)
MSI R7750 PMD1GD5
Sound Card
VIA HD 7.1 onboard
Monitor(s) Displays
Sony Bravia V Series - KLV-26V300A
Screen Resolution
1360x768
Hard Drives
WD Caviar Blue
WD5000AAKS
500GB SATA
PSU
Corsair CX500 V2
Case
Enterage Generic
Cooling
CM Hyper TX3 EVO, GPU 2x 80mm, Stock PSU fan, 1x80mm cab fan
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