Hi there, the problem seems to be that the display isn't detected at all, nothing shown during boot and no options to 'enable it as secondary' in windows. It just isn't there.

It first happened about a 18 months ago using a Mitsubishi DV197SB, worked fine for about 3 months and then one day it just never came out of standby. I sent it off to a repairer 3 times and all times it came back as having no fault. Monitor did and still does work fine on my brothers computer today.

After that drama I decided to just buy a new one, a Viewsonic vx2025wm. Again this was working fine, for a lot longer than the mitsubishi one did eve. Then my 7900gt started having overheating issues, so while sending that one off I bought a new one. Monitor does not come out of standby again.

Have also tried the Mitsubishi monitor again and it still won't work on this pc.


Plasss halp

Cliff notes *
2 LCD's stopped working for me, tried all usual troubleshooting, just will not come out of standby or be detected at all. Nothing technically wrong with the LCDs as they work on other computers fine. CRT's work fine and other LCDs that aren't playing up work fine also.

vga cable or dvi?

if one doesnt work, try the other

Yep tried that, still no good. Oh and just testing the mitsu one a bit more, noticed that with it plugged in neither monitors will show anything during the bios and booting, and the crt only comes out of standby once at the windows login screen. And yes I have had them working in a dual monitor setup (I know how to do it!)

Some research makes me think it may be corrupted EDID's in the monitors. But that seems to only make certain resolutions not selectable, not disable the monitor completely.

last edited by reso at 21:39:01 29/Apr/07

I had similar problems with my monitor! It just would stop working AT ALL and nothing I could do would make it start again. Eventually I gave up on it and left it and turned it off, then tried it again a few hours later and it started working again.

Can't remember if it was with my Sony or Samsung LCD monitor.

Can you try the monitor on another PC?

Yeah it works fine on other computers, xbox360 plugged in to it via vga and it's all good too.

You're using the power cable that came with the monitor?

reso, have you tried unplugging, changing resolutions, replugging?

I had this problem a few weeks back (monitor wasn't coming out of standby but PC was booting up fine without error beeps) and I think it was actually video card related because I pulled out my video card and reseated it and the problem went away immediately and hasn't occured since.

have you tried turning it off and then back on again?

Did you try plugging it in?

sure you have it facing the correct way?

Have you tried clearing your temporary internet files?

Seconding the sounds like it's your video card doing the damage notion.

go get a cro and test pins 13 and 14 of the vga dsub out on your card. If there's no sync pulse then your card is faulty. Could be a weak or intermittent pulse or even a f***ed ramdac.

I've lost track of the number of times Windows wouldn't enable my LCDs if I unplugged the cables and didn't put them back in the exact same configuration upon turning the machine back on.

Eventually forced to RDP into the boxen and install a VNC server. Quit the RDP session, VNC in and then enable the LCDs via the nvidia panel (can't launch the panel if you only RDP in).

I think it's some issue with Geforce 7x cards. Drives me nuts.

One thing you forgot to mention was that you bought an 8800GTS when u replaced the 7900, so its a TOTALLY different card brand and all. (I should know seeing I sold him the damn thing :P)

i am betting on vid card too.

my p3 did this recently I had to re-seat the CPU & clear the bloody cmos for it to work again. Looks like it could be any number of things that might cause it, good luck figuring out what's causing yours :)

2 LCD's stopped working for me, tried all usual troubleshooting, just will not come out of standby

although the 'resume from standby' for lcd monitors was supposed to be fixed by the time SP2 came out for XP, I still had the problem with my ViewSonic 22".. I loaded the driver that came with the monitor and that seems to have fixed it

I didn't have this problem with my old 17" lcd though - and it had no drivers

*shrug*

Can't install the drivers if it isn't being detected at all :( Nothing under device manger etc. And it doesn't show anything during bios etc either. It's turning in to a pain in the arse :(

Tried replacing all your current power boards/cables with spares? a dodgy earth wire somewhere in the chain can cause some pretty weird quirks