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2nd Monitor screen randomly turns black


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#1
MrPerson

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So I am using a GTX 650, got it about a year ago. Today I was just playing a game in the main screen, then randomly in the middle of play, the 2nd screen goes dark. I closed the game and (I had the screens expanded not duplicated) tried to move my mouse over there and click to see if it comes back (which I never had to do before, normally as long as the main screen is on, so is the 2nd). The power button is still green like it is getting signal, but it is black. If I turn the monitor off then back on, the screen works correctly for about 5 seconds before going dark again. (the power button is still green, not orange like sleep mode). I don't know what they are specifically called, but the 2nd monitor uses a blue ended cord while the main uses a white. I checked all connections to the monitor and PC and nothing changed, restarted the system to no avail too. It still shows up in device list and windows says it is working properly.

 

It is bugging me as I use the 2nd screen a lot and its making me worry that my graphics card may be dying, but its only a year old and has never been overclocked. any help would be appreciated.


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#2
phillpower2

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Hello MrPerson

 

Please provide the brand and model name or number for the video card, PSU and both screens.

 

To try and rule out the second screen as being faulty, if you can, swap the two screens around so that the second screen becomes your main screen and the present main screen becomes the second screen, what happens.


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#3
MrPerson

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setting it to be the main monitor does nothing, the graphics card is a zotac-nvidia GTX 650 The PSU I don't know anything about except for it can output up to 1000 watts (its a PC meant to be upgraded is why it has so much power supply) both monitors are Dell, the working one is a Dell ST2410(Digital) that is 1920X1080 which uses a white cord and the other one is a Dell E172FP at 1280X1024. The working one is in center and the second is extended to the left in landscape orientation. 

 

As I stated before, its power button is still green like it is getting and outputting signal, not orange like its asleep or off. If I turn it off and back on it shows the desktop correctly for 3-5 seconds then goes dark again. I did not bump anything, it just happened randomly while playing a game.


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#4
phillpower2

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setting it to be the main monitor does nothing, 

 

 

By this do you mean that the monitor still loses it`s picture!

 

Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:

  1. Turn off both your computer and the monitor.
  2. Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove Analog (blue connector) cables from the back of computer.
  3. Turn on the monitor.

     

     

    The floating 'Dell - self-test Feature Check' dialog box should appear on-screen (against a black background) if the monitor cannot sense a video signal and is working correctly. While in self-test mode, the power LED remains green and the self-test pattern will scroll through the screen continually.

     

    If you get nothing the monitor has issues.,


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#5
MrPerson

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well in the self test the box shows up, but after the same 3-5 seconds it goes dark but the light remains green. Does that mean its dead? I only used it as a 2nd because it was a spare one we had lying around, but its going to take some adjusting to go back to one monitor.....


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#6
phillpower2

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Depending on the type of monitor that it is**, some have a backlight and some do not, a check that you can do to see if a backlight has gone is to shine a flashlight into the screen when the computer is on to see if you can see any desktop icons etc in the background, you will need to look closely + it is better done in a darkened room, another possible cause is a bad inverter, the inverter controls the level of power going to the screen, not enough power the screen goes black or too much power and the screen goes white.

 

** There are two versions of the Dell E172FP, one is Dell branded and the other is an OEM made for Dell by Benq


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#7
MrPerson

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It was the Dell branded one, so its dead then. Oh well, at least it was not my main, thanks. anything that can prevent this from happening to further monitors? It was older than my current, and when I am not using my PC I turn it off or it goes to sleep, and I actually have my main on more than the 2nd that burnt out, any tips to lengthen the life of a monitor?

 

Also, unless it is too broad of a question, I had this older LCD monitor (that is gone now) that after a few years of use, it started to make crackling sounds and the screen would flash between normal and off. then it just went black and whenever I put the power cord in it, it crackled. What do you think happened there?


Edited by MrPerson, 16 June 2014 - 01:47 AM.

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#8
phillpower2

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Unfortunately nothing lasts for long anymore and it is not uncommon for items a week out of warranty (or less sometimes) to fail.

 

Avoid leaving any electrical item in stand by mode for too long, it is still an electrical charge going through soldered circuits of one form or another + it does cost money.

 

It is a broad question but possible causes include a short circuit, a bad power board, dry electrical joints and internal dust creating a build up of static.


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#9
MrPerson

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well thanks for the help, how do I conclude a thread? lol


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#10
phillpower2

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Sorry that the outcome was not favourable  :(

 

You are welcome btw and thank you for concluding your topic  :thumbsup:


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