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.



--
Dave

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

Larry

On Thu, 06 May 2004 23:52:25 GMT, Lawrence Glasser
<lglasser@spamcop.net> wrote:

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 <NOSPAM_drubin@NOSPAM_i-2000.com> wrote in
news:lsiaQKxZGNHMMGSui0kU=s7gZLMx@4ax.com:

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.

DaveR wrote:
What happens when the laptop's powered by battery?

Larry

Lawrence Glasser <lglasser@spamcop.net> wrote in news:409BC645.EDB47450
@spamcop.net:


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.

On Fri, 07 May 2004 13:51:20 -0500, Good Man <heyho@letsgo.com> wrote:

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.