no display

[rrotstain]

Hi,

I have CentOS 5.5 installed and I'm having the problem of no display, though everything is working perfectly besides that. When I don't use the mouse for a while, the monitor flashes green, but then when I do finally move the mouse, the monitor turns solid green, just that no display is seen.

How the situation came about is as follows. The display was working perfectly. I was trying to fix a friend's machine, so I unplugged the VGA cable from the back of the monitor (so that I can hook up the monitor to my friend's machine). Afterwards, when I re-plugged in the VGA cable from my linux machine to the monitor, I had no display.

Also, note that the machine is working perfectly. When I reboot, it boots up completely (I don't need to login as I turned this off) so I can ssh into it from another machine on my network.

Another interesting point is that this linux machine is currently using a cheap graphics card and this is what the VGA cable is attached to on the back of the tower. However, the motherboard does have built-in graphics card, and I also tried hooking up the VGA cable to that... still no display.

Any ideas you guys may have would be greatly appreciated.

P.S. I should also mention that I tried testing the monitor by hooking it up to a laptop as an external monitor and it worked nicely. So the monitor is, in fact, working.

Thanks,
--Ronen

[Lazydog]

So let me sere if I got this straight....

You unplugged your monitor and then plugged it into your friends system. After plugging it back into your system it no longer works properly.

Have you tried to reset the monitor to factory defaults?

Sounds like your friends system reset your monitor settings.