display - When I turn 1 monitor off it gets disabled

07
2014-07
  • Andrew

    This problem has only just happened everything was working fine for about 6 months when I got the three monitors. Everything was set up correctly no problems at all but now I do.

    All three monitors still work its just that when I turn of my 3rd monitor it turns off completely, what I mean by this is I cant put any programs there whereas I used to.

    I goes off in the control panel as well os you cant seee it there till it comes back on whereas it didnt used to and that doesnt happen with the other monitors. Also I can turn the other monitors off and keep programs on that screen.

    Do you know why this suddenly started to happen? I've made no changes?

    • Answers
    Know someone who can answer? Share a link to this question via email, Google+, Twitter, or Facebook.

    Related Question

    windows 7 - Monitor troubles
  • prolink007

    Let me start with telling you my machine.

    Win 7 pro. dual monitor extended displays. main is 1680x1050 and secondary is 1280x1024. Both monitores are LCD.

    Both monitors are over 2-3 years old.

    Here is the problem:

    Recently when i boot my computer the main monitor will briefly turn on and then turn off and NOT turn on again unless i do numerous things to it until it comes back on. The secondary monitor functions correctly. I was wondering if there was anything that i could do to save the monitor?

    To fix the issue i usually unplug the monitor for a few seconds and plug back in, or turn it on and off, or restart the computer. It will also not come back on after the computer has went to sleep.

    Once it is on it usually stays on until the computer turns the screen off... i have not experienced it turning off while in use.

    Thanks

    New information regarding my problem:

    It happened again last night. So i tried the normal things to get it to turn on that i listed above. This time it would not turn on. I got new cables and tried that and it did not fix the problem. After some time swapping cables, turning it on and off again, unplugging it for a few seconds plugging back in, restarting computer... it finally decided to turn on and stay on for the rest of the evening. Does anyone else have any suggestions on what i might can do to fix the monitor? It is a really nice and large monitor and would hate to have to buy a new one... monitors are expensive.

    Thanks


    • Related Answers
  • ChrisF

    Have you tried swapping the cables over so that the primary becomes the secondary & vice versa. This will tell you whether it's the monitor or the graphics card.

    If the same physical monitor exhibits the problem then it's the monitor, but if the problem moves to the other monitor it's probably the graphics card.

    UPDATE

    From your comment it appears that the problem is with the monitor rather than the graphics card. Make sure that all video leads are well connected at both ends.

    You may have to go out any buy a new monitor.

  • prolink007

    I actually opened up the monitor today and saw that a couple of the capacitors are leaking. I am going to run to a store tomorrow and purchase a few replacements and see if this solves the issue. I am sure this is the problem. I will post my results here.

    Replaced two capacitors that were bad in the monitor and everything is working fine now. I replaced them with capacitors that could store a higher value. They should be better for the monitor anyways.

    Thanks