# Switching monitors: signal out of range

1. Dec 2, 2007

### DaveC426913

Help.

My @#$&!& Made in China %*@$*%# flatscreen has died, forcing me to go back to my vanilla Trinitron 15" monitor.

The old monitor is giving me a "Signal out of range" error when Windows XP is about to finish loading (which is about when the monitor settings are kicking in).

Sooo, I restarted in safe mode to change the setting. Now, the monitor tab has NO settings, since it's in Safe Mode. The monitor type is "default" and the refresh rate options are all greyed out.

I can, however, go to the the Adapter tab, and 'List All Modes' and choose a different screen rez and depth. Which I did.

It made no diff. I tried 640x480x8, I tried 1024x768x16 and everything in between. I still get the same monitor error.

I've tried searching for new hardware so I could reinstall it, but it finds nothing new.

What gives???

Last edited: Dec 2, 2007
2. Dec 2, 2007

### Argentum Vulpes

It sounds like your refresh rate is too high. LCD screens can take up to 120 Hz where as the older CRT screens can only go up to 60 Hz. There is a way to change it in safe mode through the registry but I can't rember exactly how to do it.

3. Dec 2, 2007

### DaveC426913

It's not that old. It should do up to 80-90Hz.

4. Dec 2, 2007

### robphy

Is it networked?
If so, maybe you can do access it in regular mode (i.e. not in safe mode)
via VNC and remotely control it, trying to set up the monitor correctly.

5. Dec 2, 2007

### DaveC426913

An interesting idea. I do have a network, (though in all these years I have never been able to get my two comps to see each other).

6. Dec 2, 2007

### robphy

With VNC or Windows Remote Desktop (on XP), you just need the IP address.
You might have to lower your computer's (XP) firewall.

7. Dec 3, 2007

### Tony11235

You might want to try reinstallig the video drivers so that they register the currently used monitors capabilities.

8. Dec 3, 2007

### DaveC426913

Usually I do that by having it do a search for new hardware. But it doesn't find anything new. I guess I'll have to dig up the CDs or find the (2 year old) drivers online.

9. Dec 3, 2007

### Tony11235

Or maybe go to the resolution display window, and add a new monitor.

10. Dec 3, 2007

### DaveC426913

Please elaborate. I didn't find any options hiding that would allow me to make changes.

11. Dec 3, 2007

### stewartcs

Dave, Microsoft has this to say about it...

http://support.microsoft.com/kb/315614

Are you able to check the refresh rate and verify what it is set to?

I belive around 75 Hz is appropriate for CRTs.

12. Dec 3, 2007

### stewartcs

13. Dec 3, 2007

### dst

It's actually the other way round - my CRT runs up to 200Hz, but LCDs are almost always restricted to 75Hz at most.

If it's a Windows machine, hit F8 on boot (just before the first Windows logo comes up) and select safe mode, then adjust the refresh rate accordingly (60Hz is the standard).

If, as the OP suggests, that can't be done, the best bet is to uninstall & then reinstall the video driver, from Device Manager (start > run > devmgmt.msc).

14. Dec 3, 2007

### DaveC426913

I do not have the option of a monitor in Device Manager, only the Adapter. Monitor is simply not listed.

15. Dec 4, 2007

### dst

That's the one. Video adaptor driver. Monitor drivers do practically nothing.

16. Dec 9, 2007

### DaveC426913

GonnagetaMacGonnagetaMacGonnagetaMacGonnagetaMacGonnagetaMac...

The adapter reinstall goes looking on my drive for a file, which it does not find. And of course, I'm not going to have a disk around after half a dozen years for a vanuilla monitor...

I don't understand how this got so complicated. I used to be able to go in and simply tell it the refresh rate. What is so differnt aboujt my system that I can no longer do that?

Anyway, who cares why. I've got a freakin' turbo-charged doorstop here because I can't hook it up to the stupid monitor.

17. Dec 9, 2007

### wysard

Dave:

Fire up the system: If you see the output from the BIOS startup on the screen (or a logo) then the system sees the video card. The next step is to fire up Windows under Safe Mode.

If Windows comes up under Safe Mode (yeah, the graphics can be really wonky) then the problem is just with the video drivers. (Refresh rates and resolution/bit density are the biggest items) Then delete the video adapter (clearing all the variables for the flat screen) and reboot in normal mode and adjust. (If you did it right the first time up in "Norma" mode the screen will STILL be wonky, but Windows will reload the defaults that the video adapter can actually apply to the display monitor it is attached to.

18. Dec 10, 2007

### DaveC426913

I can get into Safe Mode no problem.

How do I "delete the video adapter (clearing all the variables for the flat screen)"?

19. Dec 10, 2007

### robphy

I still think that using VNC or a Remote Desktop connection is better since you are not in Safe Mode when you make your changes.

However, in Safe Mode, you might (but I'm not sure) be able to do this:
Right-click on My Computer... Manage.
Under "View"... "Show Hidden Devices".
Go to Monitors... for each [including apparently duplicate entries]... right-click, then either Disable or Uninstall.
You might want to do this for the Display adapters as well.

20. Dec 10, 2007

### dst

Do you know what video adapter it is? If it's integrated it's usually made by VIA or Intel, discrete boards are usually made by nVidia or AMD, and you can go onto their websites and download unified drivers for them.