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Unable to set 1080p res on LN46A650 with laptop using VGA

Hi I bought the LN46A650 last week and connected my IBM W500 Laptop running Win XP SP2 using the VGA cable. I get a picture but the highest resolution I can get is 1280 x 1024. When I set the desktop resolution to 1920 x 1080 @ 60 Hz, I get a message on TV saying "Mode not Supported".

I tried a few resolutions in between like 1400 x 1200 but these did not work either.

What am I doing wrong?

Any help appreciated.

- nagtaget

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VGA

In reply to: Unable to set 1080p res on LN46A650 with laptop using VGA

nagtaget,

The manual notes on page 44 that the only way to get the resolution you're outputting is to use DVI/HDMI. Unfortunately, the available resolutions through a VGA cable are:

640 x 480
640 x 480
640 x 480
800 x 600
800 x 600
800 x 600
1024 x 768
1024 x 768
1024 x 768
1280 x 1024
1280 x 1024
1360 x 768

Hope that helps.

--HDTech

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Unable to set 1080p res on LN46A650 with laptop using VGA

In reply to: VGA

Hi HDTech,

Thank you very much for the explanation. That makes sense. I went through the manual and you are right it says for VESA standard, the highest resolution is 1360 x 768. However, it also mentions that for the CVT standard, the only resolution is 1920 x 1080RB. Now based on my research, I believe, VESA and CVT are display standards for the laptops display driver? Am I correct? Do you know how I can change the display mode from VESA to CVT?

I ask because, even for DVI/HDMI input, there are two modes, VESA and CAE and the 1920 x 1080 resolution can only be achieved by CAE. Does this mean that even with the DVI/HDMI cable, my laptop will only be able to output VESA mode graphics and be limited to 1360 x 768?

Thanks
nagtaget

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1080p through VGA cable on 650

In reply to: VGA

Samsung_HD_TECH,

I had a problem similar to this post. Just to let other readers know, I created a custom resolution on my video card control panel on my PC:
>>> 1920x1080RB 60hz "CVT Reduced Blanking" <<<
RB apparently stands for "reduced blanking" and I chose this specific setting.

This resolution does work via VGA cable with the Samsumg 650.

Thank you, Samsung_HD_TECH, for your helpful advice. Leading me to page 44 in the manual set me on the right course.

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