Black screen if I go over 640X480@8bits

[Guest]

I was using my pc for 1 years withou any problem, I was watching a DVD when
the PC freezed up. When I reboot (winxp sp2) the windows splash screen appear
then the screen come black. I know the boot up sequence continue correctly
because I hear normal sounds.

I tried to use the windows repair without success. I reinstall the whole
thing, I was back on track (1024X768) but after installing SP2, my router, my
modem and a couple of other things, I had to reboot a couple of time, and
after 4-5 reboots, same problem.... grrrrrrrr

If I boot in VGA mode, everything's fine until I go to control panel and
change a setting. If I change 640X480 to a cheap 800X600 or from 8 to 16 bits
or even when I change the refresh rate from 30 to 60 hz, to screen come black
and the power lignt on the monitor come orange which mean that the monitor no
longer receive a signal from the PC.

I use and old Dell 19 inch 1226H screen with an ATI radeon 9600. I use the
default 9600 driver provided by windows. I use no specific driver for the
monitor (windows generic monitor).

any idea ?

 

[Malke]

I was using my pc for 1 years withou any problem, I was watching a DVD
when the PC freezed up. When I reboot (winxp sp2) the windows splash
screen appear then the screen come black. I know the boot up sequence
continue correctly because I hear normal sounds.

I tried to use the windows repair without success. I reinstall the
whole thing, I was back on track (1024X768) but after installing SP2,
my router, my modem and a couple of other things, I had to reboot a
couple of time, and after 4-5 reboots, same problem.... grrrrrrrr

If I boot in VGA mode, everything's fine until I go to control panel
and change a setting. If I change 640X480 to a cheap 800X600 or from 8
to 16 bits or even when I change the refresh rate from 30 to 60 hz, to
screen come black and the power lignt on the monitor come orange which
mean that the monitor no longer receive a signal from the PC.

I use and old Dell 19 inch 1226H screen with an ATI radeon 9600. I use
the default 9600 driver provided by windows. I use no specific driver
for the monitor (windows generic monitor).

any idea ?

Things to try:

1. Download and install drivers from ATI for your card.

2. If that doesn't help, attach the computer to a different monitor. If
you get no problems, you know the original monitor is failing. Your
refresh rate is certainly set low enough, so a too-high refresh rate
doesn't seem to be the problem.

3. If you get problems with ATI drivers on a different monitor, you know
your video card is failing. Swap it out with a known-working one. If
the problems disappear, replace your video card.

Malke

 

[Guest]

Hi Malke, thanks for the reply !

I found the problem: I had 2 monitors tied to my ATI 9600 card, Don't ask me
why, one year after the installation, this is the first time I see this, the
signal swap between both monitor. Because I don't usually open both monitors,
I didn't realize that this was the problem. So, I just unplugged my main
monitor and plug it in the second slot and averithing's ok !

 

[Malke]

Hi Malke, thanks for the reply !

I found the problem: I had 2 monitors tied to my ATI 9600 card, Don't
ask me why, one year after the installation, this is the first time I
see this, the signal swap between both monitor. Because I don't
usually open both monitors, I didn't realize that this was the
problem. So, I just unplugged my main monitor and plug it in the
second slot and averithing's ok !

Ah hah! Who woulda thunk it? ;-) I'm glad you got it sorted, and I
appreciate that you posted back.

Cheers,

Malke