LCD display and ATI 9800 Pro card

[Michael Coss]

I just bought a new custom computer system, and I'm having some
problems with the monitor. Or at least that's what it looks like.
After running for about 30 mins the screen goes blank, and the only
way that I've found to get the picture back is to turn the monitor off
and then on again but that only lasts for a few minutes, then it back
to black. I've turned off power saving on the monitor, made sure that
the Windows doesn't turn the monitor off, and the behaviour is the
same whether I'm actively using the monitor or not.

The monitor is a NEC 1760NX, the video card is a ATI 9800 Pro, the
screen is set at 1280x1024 @ 60Hz. I'm currently using an analog
cable because the monitor didn't ship with a DVI cable but I'll be
picking one up tonight. The monitor isn't reporting a loss of signal,
so I'm hard pressed to say that changing the cable will have any real
effect. It seems likely that there's some problem with the monitor
which appears to be related to how long the monitor has been turned
on.

Anyone have any thoughts about what's going on? and/or what I should
try before I ship the monitor back.

Thanks in advance.

 

[Frank Weston]

I had the same problem with a Samsung 172T LCD, in digital and analog in
Win2K. I finally solved it by going into power options and setting "turn
off monitor" to NEVER for plugged in and for battery. I'm also running a
UPS which I think somehow complicates or causes the problem. .

Before I got this figured out, I went through two monitors and a 9000 pro
and a 9800 pro, so I'm pretty sure my problem wasn't the monitor or the
card. The weird thing is that it was intermittent, which leads me to think
it has something to do with my UPS and how it works.

Good luck.

 

[JAD]

what about screen blanking in BIOS?

 

[peter]

Hi
I have a 9600 pro card and NEC monitor running on a new ASUS A7N8X Deluxe
ver2.0 mobo using the digital out interface without any problems.The NEC
also ran fine under analog before I switched to digital.Seeing as you seem
to have the settings correct ...it did shut down on me at a higher refresh
rate..I assume you loaded the NEC drivers and the monitor shows correctly
under video properties???There are 2 drivers one for analog one for digital.
peter

 

[Michael Coss]

what about screen blanking in BIOS?

I hadn't thought about that (and will certainly check it), but the
behavior is inconsistent with a timer, due to the fact that once it
starts blanking the screen, the timer (if there was one) doesn't
reset, and the screen from that point on will only stay on a few
minutes at a time.

But the testing I did last night, I think pretty much rules the
monitor out as the source of the problem. Started the new computer
up, and waited till it started to exhibit the problem (took about
45mins). Checked the temp on the case, the motherboard, and the video
card. Nothing too warm to the touch. In fact all was quite cool.

Then I plugged the monitor into my laptop, ran for 2 hrs no problems.
So I think it's probably safe to say the the monitor wasn't causing
the screen blank.
Now need to rule out video card, XP (driver, inf, config). Booted up
the new system again, installed the lastest catalyst drivers from ATI
(3.7 I believe), and installed the inf file for the monitor. Then
left the machine running waiting for the blank screen, nothing happend
for the 1 hr that I waited, but by then it was 2am and I needed to get
to bed. More testing tonight but it appears that either the new
drivers, or the INF file 'fixed' the problem.

Thanks for the input