1. This forum section is a read-only archive which contains old newsgroup posts. If you wish to post a query, please do so in one of our main forum sections (here). This way you will get a faster, better response from the members on Motherboard Point.

New Laptop: Screen Flicker

Discussion in 'Laptops' started by DaveR, May 7, 2004.

  1. DaveR

    DaveR Guest

    I just got a brand new ASUS M6B00N laptop with 15.4" WXGA screen.

    When plugged in to AC power, there is an intermittent flicker on the
    screen. It happens infrequently, and it is very slight.

    I worry that there may be a problem with the inverter or backlight.
    But I wonder if it may simply be related to the quality of AC power.
    (I am not running it through a UPS or line conditioner.)

    Is it possible for a laptop display to be sensitive to the AC power
    source, causing the screen to flicker? Or is there a good chance that
    I simply have a defective laptop? I am hesitant to send it back
    because the problem is so intermittent, they may never see it.

    Thanks in advance for any replies.
    DaveR, May 7, 2004
    1. Advertisements

  2. It's possible that the correct video drivers weren't installed, or
    the refresh rate is improperly set.

    Lawrence Glasser, May 7, 2004
    1. Advertisements

  3. DaveR

    DaveR Guest

    It has the latest drivers, and the refresh rate is at 60Hz which is
    the only possible choice (it is meaningless for an LCD).
    DaveR, May 7, 2004
  4. DaveR

    Good Man Guest

    i would definetly give tech support a call if you are still within
    warranty, or maybe try to track down a dealer, bring in your laptop, use
    THEIR AC-Adapter on YOUR laptop and see if it still shows problems. You
    can also bring in your AC adapter and see if it causes problems using their
    outlet... this will just help you troubleshoot a little further.

    i have some pretty weak/dirty power at my home, and while it doesn't affect
    my laptop, it definely affects my 19" monitor.
    Good Man, May 7, 2004
  5. What happens when the laptop's powered by battery?

    Lawrence Glasser, May 7, 2004
  6. DaveR

    Good Man Guest


    im pretty sure he indicated it works fine.... that's why its good to test
    to see whether or not the AC adapter is messing up the proper current.
    Good Man, May 7, 2004
  7. DaveR

    DaveR Guest

    Yes, I have not noticed the problem on battery. To be honest, I hardly
    ever notice the problem at all. Once in awhile, I do see brightness
    fluctuations, but I'm afraid it is so subtle that if I return the
    laptop, tech support may not be able to replicate it.

    I do notice the same brightness fluctuations when the laptop first
    awakens from standby mode, until it fully warms up (about 30 sec).
    So I wonder, can bad AC power, or a bad power supply, cause these
    types of problems?

    My main concern is that the LCD or inverter is bad, and might fail
    down the road. Since I have 30 days to return the laptop for any
    reason, I might want to do that if it is likely that it is defective
    (i.e. do these subtle flickers indicate a problem).

    Thanks for your responses.
    DaveR, May 10, 2004
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.