Question about Samsung SyncMaster 17 in. LCD Television

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VGA signal dim

The vga signal on my screen suddenly has become very dim. All the other functions of the monitor are the proper brightness including the onscreen menu in pc mode. Can anyone help? I don't know if it is the cable or the screen or what. It has done this on a pc and a mac. Thanks, Jonathan

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Re: VGA signal dim

This seems to be a known issue with the 170MP monitors. Last time I contacted Samsung they seemed unwilling to replace this model. I took my screwdriver to it to no avail (only reseated an IC). The only solution I've found is jury-rigged at best: Enter the OSD, PC Settings. Third tab from the left is "Color Control." Selecting User Mode here, you can move all the color sliders from 50 (default) to 100. You'll get a minor (in the long run, barely noticable) rise in brightness. Whatever the root cause of this failure is, it's too deep for me to find on my own. Considering previous (read: warrantied) repair orders resulted in a new/refurbished monitor being sent to me, it's possible that we as consumers are unable to resolve this one.

Posted on Jun 14, 2007

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Re: VGA signal dim - Samsung SyncMaster 17 in. LCD Television Flat Panel Televisions

I would try another cable first

Posted on Apr 01, 2007

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What kind of wire do I need to connect my samsung laptop to panasonic viera hd 3d plasma tv?

Most TVs will have HDMI and RCA component and composite jacks. Some TVs will also have a VGA port. Your laptop will have a VGA port. (If the laptop is fairly new, it may also have an HDMI port.)

Not all TVs will support an HDMI signal from a computer, so the VGA signal is often better. However, that limits you to SD (anything with HDCP will fail.)

Very few TVs ship with the HDMI or component cables. However, there are some vendors who do package the HDMI cable with their TV. Without knowing which exact model of TV and laptop, I can only make a few suggestions. I know that the TCP42ST30 (Plasma 42") doesn't have a VGA port.

Look at your laptop for any external monitor port. VGA ports are generally blue female ports with 15 holes (D-Sub). If your TV has a matching VGA port, get a standard VGA monitor cable.

If you have the VGA port on the laptop but not on the TV, you can try a converting from VGA to HDMI. (You may need a DVI to VGA adapter and either a DVI to HDMI cable or a DVI to HDMI adapter.) Note: this gives an analog signal (RGB format) to the TV. You'll also need to make sure that your VGA port is active (in the BIOS for some computers) and then set your computer to send the signal to the external monitor. It is best to turn off both the computer and the TV before connecting the two. Then turn on the TV and set it to the correct input before turning on the computer. (In Windows 7, I set the video signal for the external monitor by right clicking on the desktop and selecting Graphics Properties. Set the signal to the external monitor and click Apply. Then click OK (in the external monitor's screen).)

If this doesn't work, you need a VGA to component video converter. (Not a VGA to component video cable - those are for projectors that read the RGB signal.) See .

Some laptops come with an HDMI, mini-HDMI or a DisplayPort option. For the latter two, you will need the appropriate cable with that end and the HDMI connector on the other. Then connect the TV and the computer as described above. (Note: my TVs accept a computer signal at the HDMI port labeled HDMI/DVI. However, you need to make sure that your TV understands this signal. It isn't the same format as that from a set-top box. My laptop has VGA and HDMI out; the desktops have VGA, DVI and HDMI (on one).)

If you add a comment with the model of your TV and laptop, I'll be glad to give you more specific options to connect the TV and the computer.

I hope this helps.

Cindy Wells
(A DVI port is a digital video out option with ~21 pins and is usually white.)

Feb 03, 2012 | Panasonic VIERA Flat Panel Televisions

1 Answer

Hi we just bought a Sanyo LCD42K30, Im trying to connect it to my laptop vi VGA but it wont work, it says no signal. Please help

Try the following procedure:

Turn off your TV and your laptop.
Connect the VGA cable from the VGA output of the laptop to the VGA input of the TV.
Now turn on your TV.
Then select VGA on your TV's onscreen INPUT MODE SELECTOR.
Now turn on your laptop.

The laptop should now automatically detect the TV and display the video signal onto that screen.

If the laptop display is still appearing on the laptop's built in screen, then just wait for the machine to finish booting up completely and then you can try using the FUNCTION keys on the laptop keyboard to switch the display to the external monitor (TV).

Now try holding down the FUNCTION (Fn) key on the laptop keyboard and then push the F5 key at the same time.
If this combination does not work, look at the numbered F keys at the top of the keyboard for one that has a figure of a monitor on it. Then hold down the FUNCTION key and press that F# key.

The exact key combination for switching between the external and built in monitors is different for each model of laptop, so if you still have trouble, try looking in your laptop's owner's manual for the precise instructions for that model. Otherwise just comment back here with your laptop's brand and model number and I will look up the procedure for you.

Please comment back here to this page if you have any details to add, have any questions, have difficulty accessing the links, or just require further general assistance and I will respond as soon as I see it.

I hope that was helpful to you, good luck and take care.


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Hi there, i was just wondering that, my hdmi monitor which is goodmans GTVL19W17HD monitor and it has a HDMI slot, but my graphics card doesnt, instead my graphics card has a vga and dvi slot, and if i...

Hi hassy786,

Regarding your question if you will use a converter from VGA to HDMI will it provid High Defenition video?

I believe that it will provdie video converting the signal from VGA to an HDMI connection but I do not think that the video will be High Definition since the VGA is just being converted to HDMI signal and not an actual HDMI but just a converted signal, and it is possible that it may not work properly or the LCD TV may have difficulties recognizing the signal from VGA converted to HDMI.

Thanks for chosing Fixya,


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Turn it on iget audio add video flashis for one second then iget kind of a white or gray screen?

The message you're seeing is part of your monitor's ROM programming. It is its response to an input signal that it doesn't recognize. If someone makes a composite to vga adapter cable, it's because they can sell it, not because it works. While both composite and vga are analog signals, they are not at all the same format. The signal gets to the monitor via the vga connector, but it's still a composite signal. Your monitor is all wtf about it. You can make HDMI to DVI cables, but that's because they carry the same digital signal. There is basically no way to connect a ps2 to a pc monitor that doesn't have composite or component input, unless you spend extra money. That can be on either a signal conversion box, which cost at least $50 and might not work so good, or a capture or tuner card for your pc that can capture the signal and relay it to the monitor as VGA or DVI signal. Either method basically converts the composite/component to vga or digital. There is such thing as a ps2 vga cable, but it doesn't work under the normal ps2 operating system, only under ps2 linux. It's hard to find, too. No point looking for one cause you'd only get to play homebrew games of which there aren't many.

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LG W2361V 23 Vga to HDMI Cable Not Working

You have a cable problem as no such thing as a VGA to HDMI cable exists.

HDMI is a didital signal and is thus not compatable with an anolog VGA signal. HDMI to DVI cables however do exist as both are digital signals.

Hope this helps.

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