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Desktop Computer Screen (monitor) is black.

Frequent Visitor

Desktop Computer Screen (monitor) is black.

The desktop computer itself is functioning.

The screen remains black. The light for the screen is on but still nothing.

Do I need to buy a new monitor?

Help please!

Silver Problem Solver

Re: Desktop Computer Screen (monitor) is black.

How is the monitor connected to the computer?

Frequent Visitor

Re: Desktop Computer Screen (monitor) is black.

It's plugged in from the back of the monitor to the back of the computer. 

 

I have not had this problem before, which makes me think the monitor might need replacing, it's very old.

 

Thank you

 

 

 

Silver Problem Solver

Re: Desktop Computer Screen (monitor) is black.

I meant DVI?, HDMI? VGA? ect.  Did you make sure the connection is secure? Do you have another monitor to try. Most newer TV's today can be a computer monitor.

Frequent Visitor

Re: Desktop Computer Screen (monitor) is black.

I don't know what any of those letters mean. Any suggestions on how I can find out?

Unfortunately I am not computer literate. I haven't a clue on tech issues.

I am lucky enough to have a laptop as a backup, but prefer the desktop. 

I don't have a TV that has computer compatability on it.

Thanks for trying to help. 

Silver Problem Solver

Re: Desktop Computer Screen (monitor) is black.

Mostly just check that it is securely connected. But before you buy a new monitor, you should find out why this one is not working. 

Frequent Visitor

Re: Desktop Computer Screen (monitor) is black.

How do I find out how the monitor is connected (per your original question)? Is there a model number or something else I can look for? 

All the cables and inputs appear to be securely in place.

I agree with you, I need to know why this one isn't working before I get another one.

I appreciate your help, thanks a lot.

Silver Problem Solver

Re: Desktop Computer Screen (monitor) is black.

Is it a flat screen or a bulky tube type monitor? What is the diagonal measurment in inches of the screen? Is the wire that connects to the computer fat with screws, or skinny push in? What is the brand name and model number?

Service Expert

Re: Desktop Computer Screen (monitor) is black.

Kuchen,

 

FWIW, it may be simpler to take your desktop & monitor to a local PC specialist who can then determine if it is the monitor or the video card that needs replacing...   no sense in replacing what may or may not be the problem....



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Service Expert

Re: Desktop Computer Screen (monitor) is black.

You mention that you have a laptop.

 

Easy way to find out if it is the monitor by using your laptop.

 

Unhook the monitor from the desktop. (make sure you remember where you removed it from on the back of the desktop).

 

Take your laptop to where the desktop is located.

 

Laptops do have the port for connecting it to a monitor.  Connect your monitor cable to the laptop. Make sure the monitor is turned on.

 

Read this  "how to" http://www.computerhope.com/issues/ch000801.htm for more information on using the monitor on your laptop. It also has photos of DVI, HDMI and VGA ports. I suspect you are currently hooked the laptop via VGA, which is sufficient for most people.

 

If nothing happens you will know the monitor needs to be replaced.  You did say it is "very old" and most likely it finally reached the end of its useful life.

 

If you do need a new one, take a look at local ads (which are available online) for stores such as Best Buy, Office Depot, Staples, etc, in your area. They always have monitors on sale. You can get a new one for under $100.

 

If it works on the laptop, the problem will be the VGA port on your desktop. If you are using on-board graphics (monitor hooked to VGA port on the motherboard) you have 2 choices if that port has gone bad.

 

1) Replace the motherboard, which can be expensive.

 

OR

 

2) If the desktop tower has expansion slots at the bottom for adding separate sound or video cards, you can purchase a video card and install it in the slot. You then hook the monitor to the VGA port on the card. You can install it yourself or if not confident in your ability to do so take it to a computer shop to have it done.

 

If the monitor is connected to a separate graphics card (at the bottom of the tower) and it does work on the laptop, try connecting it to the on-board VGA port of the motherboard.

 

 

 




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Frequent Visitor

Re: Desktop Computer Screen (monitor) is black.

Ok this is what I found:

 

It is a flat screen LCD Monitor/January 2007/HannStar

VGA

I checked and the cable or whatever it might be called, was securely attached to the back of the monitor as well as the computer.

Could it be that I need a new cable for it?

 

Silver Problem Solver

Re: Desktop Computer Screen (monitor) is black.

I hate to tell you to buy anything without finding out the problem.

Cables don't just go bad, but its possible.

Several main possibilities:

Bad video card in the computer

Bad cable

Bad monitor

Settings in the computer.

The good news is an old 2007 Hannstar monitor has no value today.

New monitors are cheap.

What do you have for a computer?

 

Frequent Visitor

Re: Desktop Computer Screen (monitor) is black.

It's a Compaq Presario/Windows Vista Home Basic 2007

I did not see any indication of a video card, unless it's an internal device.

Do you think it advisable to take the computer and monitor to a PC repair? 

Service Expert

Re: Desktop Computer Screen (monitor) is black.


barbie123 wrote:

 

Cables don't just go bad, but its possible.


Bad cable


Sometimes they do go bad. The only way to find out is to use a different cable and you probably don't have one sitting around somewhere.

 

I forgot that a bad cable could be the cause, although I have never had a cable go bad I did have one that the screw got messed up on and I did have to pull out a spare cable to use.

 

 




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Service Expert

Re: Desktop Computer Screen (monitor) is black.


Kuchen wrote:

It's a Compaq Presario/Windows Vista Home Basic 2007

I did not see any indication of a video card, unless it's an internal device.

Do you think it advisable to take the computer and monitor to a PC repair? 


If it is hooked up at the top of the case it is an internal on-board graphics device.

 

Did you try using it with your laptop? Keep in mind that if it doesn't work on the laptop there is a very slim chance it could be the cable.

 

However, at this point I think it is either your monitor needs to be replaced or the graphics port.

 

 

 

 




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Silver Problem Solver

Re: Desktop Computer Screen (monitor) is black.

I just don't like those computer repair places. Some are good, some are not.

Do you have a handy friend that could help you isolate the problem? 

Other than that, it may be time to just upgrade your 2007 Compaq with Vista, that is really quite dated.

Windows and Mac computers have really come a long way since 2007.

Frequent Visitor

Re: Desktop Computer Screen (monitor) is black.

On the back of the monitor there is the cable that is plugged into the VGA port. Next to that there is a port for DVI. Is it possible that I could connect a DVI cable and take out the VGA?

As I said before this is all "greek" to me so to speak.

My laptop has 3 ports, but none of them are large enough for the cable that is plugged in the old monitor.

 

 

Silver Problem Solver

Re: Desktop Computer Screen (monitor) is black.

To use your laptop, you would need some sort of adapter.

Yes you could use DVI to the monitor.

Frequent Visitor

Re: Desktop Computer Screen (monitor) is black.

So do you think I can purchase a DVI cable at an office supply store and give it a try to replace the VGA?

 

Silver Problem Solver

Re: Desktop Computer Screen (monitor) is black.

You can try that, but a DVI cable may cost more than your monitor is worth.

I would still like to see you have a handy friend diagnose the problem before you spend any money.

Frequent Visitor

Re: Desktop Computer Screen (monitor) is black.

Unfortunately I don't have any handy friends that are knowledgeable with computers.

I think it's time to consider a new computer. I'll check around on the cost of the cable first.

Once again, thank you for all your help.

Silver Problem Solver

Re: Desktop Computer Screen (monitor) is black.

Good luck, let us know how you do.

Frequent Visitor

Re: Desktop Computer Screen (monitor) is black.

The black screen on the computer while streaming is a Comcast issue, not a monitor issue.  Unfortunately, like most Comcast problems, it's frequent but intermittent, and as with many other Comcast issues, there's really no solution.