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    Monitor flickering???

    Discussion in 'Accessories' started by HopelesslyFaithful, Apr 13, 2012.

  1. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

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    Well this is odd...i just notice my U2412m flickering.....i assume that is a bad thing right? I don't think my eyes are playing ticks on me either. Also I have it in my UPS now and its running at the rated ~125V...i thought everything is 120v but according to papers it says input is 125V and output is 125V....seems odd to me. My power from the wall is that according to it.
     
    HopelesslyFaithful, Apr 13, 2012
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  2. namaiki

    namaiki "basically rocks" Super Moderator

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    Are you hooked up via VGA or a digital format like HDMI or DP?
     
    namaiki, Apr 15, 2012
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  3. JOSEA

    JOSEA NONE

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    Also in device manager does is show up as Dell .. or Generic PnP ? IF it is Generic PnP you may need a driver. Also what refresh rate are you set to?
     
    JOSEA, Apr 15, 2012
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  4. Greg

    Greg Notebook Nobel Laureate

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    ...you don't need a driver for a monitor. Never needed one on any Dell monitor I've owned. Try plugging the monitor into the wall if you haven't taken it off the UPS already.
     
    Greg, Apr 15, 2012
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  5. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

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    I'll try switching it off the UPS also it comes and goes the flicker...last night it was horrible and now it doesn't exist or very slight. Also I do have it VGA

    EDIT: also it says Dell U2412m in monitors
     
    HopelesslyFaithful, Apr 15, 2012
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  6. namaiki

    namaiki "basically rocks" Super Moderator

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    Is it possible that it's a VGA ground loop? Does the flickering go away if your laptop isn't plugged into the AC adaptor and running on battery? Is there any way that you could use a digital video cable instead?
     
    namaiki, Apr 15, 2012
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  7. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

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    i only have hdmi on my laptop and the u2412m has DVI and DP or i need to buy an adapter to use those but i have been to cheap. I hope its not a VGA issue because I will want to add another one down the road. Also its not flickering this second(or so little i question if my eyes are making things up) so i am going to wait when it starts to flicker to switch power sources. Also its not a universal flicker it moves and flickers in horizontal lines if i remember correctly. It is not like the whole screen flickers
     
    HopelesslyFaithful, Apr 15, 2012
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  8. chimpanzee

    chimpanzee Notebook Virtuoso

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    on my new vostro v131, my monitor also behave oddly when on battery(flicker but not sure if it is the same as yours) after i install the newest driver from Intel. It stops once i revert it.

    not sure if it is the same issue but worth a try.
     
    chimpanzee, Apr 15, 2012
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  9. namaiki

    namaiki "basically rocks" Super Moderator

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    chimpanzee, that sounds like it could be that annoying Intel "Display Power Saving Technology" setting where it tries to do this dynamic contrast kind of thing.
     
    namaiki, Apr 15, 2012
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  10. chimpanzee

    chimpanzee Notebook Virtuoso

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    yup, seems to be the case but i don't care too much when i found a easy solution :)

    in fact, this Intel GPU has this kind of annoying things here and there. every time i reboot windows, i would see the login screen first then a quick flick(i am using SSD so it boots very fast). never saw it on my other setups.
     
    chimpanzee, Apr 15, 2012
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  11. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

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    ok it still flickers when its in the surge outlet and not in the battery outlet
     
    HopelesslyFaithful, Apr 16, 2012
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  12. flipfire

    flipfire Moderately Boss

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    Are you using the VGA cable included with the Dell?
     
    flipfire, Apr 18, 2012
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  13. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

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    ...should be why?
     
    HopelesslyFaithful, Apr 18, 2012
    #13