1. You may have noticed things look a little different around here - we've switched to a new platform (XenForo) and have some new forum styles and features. This how-to guide will help you find your way around. If you find anything that looks strange, post it in this thread.

Monitor flickering???

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

  1. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

    Reputations:
    1,552
    Messages:
    3,174
    Likes Received:
    161
    Trophy Points:
    0
    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.
     
  2. namaiki

    namaiki Super Moderator Super Moderator

    Reputations:
    3,862
    Messages:
    5,891
    Likes Received:
    20
    Trophy Points:
    206
    Are you hooked up via VGA or a digital format like HDMI or DP?
     
  3. JOSEA

    JOSEA NONE

    Reputations:
    4,013
    Messages:
    3,514
    Likes Received:
    161
    Trophy Points:
    131
    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?
     
  4. Greg

    Greg Super Moderator Super Moderator

    Reputations:
    7,857
    Messages:
    16,217
    Likes Received:
    57
    Trophy Points:
    466
    ...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.
     
  5. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

    Reputations:
    1,552
    Messages:
    3,174
    Likes Received:
    161
    Trophy Points:
    0
    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
     
  6. namaiki

    namaiki Super Moderator Super Moderator

    Reputations:
    3,862
    Messages:
    5,891
    Likes Received:
    20
    Trophy Points:
    206
    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?
     
  7. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

    Reputations:
    1,552
    Messages:
    3,174
    Likes Received:
    161
    Trophy Points:
    0
    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
     
  8. chimpanzee

    chimpanzee Notebook Virtuoso

    Reputations:
    683
    Messages:
    2,561
    Likes Received:
    0
    Trophy Points:
    55
    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.
     
  9. namaiki

    namaiki Super Moderator Super Moderator

    Reputations:
    3,862
    Messages:
    5,891
    Likes Received:
    20
    Trophy Points:
    206
    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.
     
  10. chimpanzee

    chimpanzee Notebook Virtuoso

    Reputations:
    683
    Messages:
    2,561
    Likes Received:
    0
    Trophy Points:
    55
    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.
     
  11. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

    Reputations:
    1,552
    Messages:
    3,174
    Likes Received:
    161
    Trophy Points:
    0
    ok it still flickers when its in the surge outlet and not in the battery outlet
     
  12. flipfire

    flipfire Moderately Boss Super Moderator

    Reputations:
    6,146
    Messages:
    11,173
    Likes Received:
    54
    Trophy Points:
    466
    Are you using the VGA cable included with the Dell?
     
  13. HopelesslyFaithful

    HopelesslyFaithful Notebook Virtuoso

    Reputations:
    1,552
    Messages:
    3,174
    Likes Received:
    161
    Trophy Points:
    0
    ...should be why?
     
Similar Threads: Monitor flickering
Forum Title Date
Accessories Dell E1505 and External monitor flickering... May 23, 2009
Accessories External Monitor flickering problems? Sep 4, 2008
Accessories UltraHD Monitors Jan 20, 2015
Accessories 4k monitor that's 3D Vision ready Nov 1, 2014
Accessories Portable full HD monitor 17-19.5" ? Oct 31, 2014

Share This Page