Switching Users

[Travis King]

When we switch users and log on the next user, the screen goes black (still
shows a signal) but we can still here the startup sound being played. When
we turn off the monitor itself and turn it back on, then it works and we can
see the freshly logged on user's desktop.

The question here would be is the monitor causing this odd behavior or is it
the video card? On their previous computer, they had the same monitor and
it did it on their old computer as well, but both computers had a video card
made by NVIDIA. The old computer's card was a GeForce3 Ti200 and the new
computer's card is a GeForce 6600. I assume it's the monitor that's the
problem. Thanks.

NEC Accusync 900 CRT monitor
Windows XP Home SP2
AMD Athlon 64 X2 3800+ Dual-Core (939)
1GB of dual-channel PC-3200 RAM
NVIDIA GeForce 6600 256MB DDR PCIe x16
Western Digital SATA150 250GB 8MB cache 7200RPM HD
DVD RW drive with LightScribe
Asus 52x CD-ROM drive
3 1/2" Floppy Drive
Thermaltake 430W PSU

 

[M.I.5¾]

When we switch users and log on the next user, the screen goes black
(still shows a signal) but we can still here the startup sound being
played. When we turn off the monitor itself and turn it back on, then it
works and we can see the freshly logged on user's desktop.

The question here would be is the monitor causing this odd behavior or is
it the video card? On their previous computer, they had the same monitor
and it did it on their old computer as well, but both computers had a
video card made by NVIDIA. The old computer's card was a GeForce3 Ti200
and the new computer's card is a GeForce 6600. I assume it's the monitor
that's the problem. Thanks.

NEC Accusync 900 CRT monitor
Windows XP Home SP2
AMD Athlon 64 X2 3800+ Dual-Core (939)
1GB of dual-channel PC-3200 RAM
NVIDIA GeForce 6600 256MB DDR PCIe x16
Western Digital SATA150 250GB 8MB cache 7200RPM HD
DVD RW drive with LightScribe
Asus 52x CD-ROM drive
3 1/2" Floppy Drive
Thermaltake 430W PSU

It sounds very much like your monitor. I have come across similar behaviour
on television sets.

Explanation for the technically minded:

I would think that a momentary glitch in the video timings stops the line
scan (the horizontal one) circuits from working (possibly because they are
only *just* working). Turning it on and off kicks it back into life. There
are many reasons that this could be so, but drying out electrolytic
capacitors would be my No 1 guess.

Exlanation for the non-technically minded:

It's knackered.

 

[Travis King]

The monitor's a little over 2 years old. It's been doing this for around a
year. We originally thought it was the video card except it kept doing this
even after we put it on the new computer. Originally, we did not know that
turning the monitor off and back on would make it work.