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Flat Panel works yet Conventional CRT will not

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iblearnen

Instructor
Jul 17, 2005
93
US
Morning, I have a system that the Flat Panel Monitor failed. When I attach another Monitor, (a Conventional CRT) the computer doesn’t recognize it. I installed a different vid card just for fun and still nothing. Thanks in advance

Flat Panel works yet Conventional CRT will not
 
Is there a setting or something that I can change so that this machine will recognize my Conventional CRT?
 
A couple of things come to mind:

1) The flat screen might have been able to go to a higher resolution that the CRT.
2) The CRT could be damaged as well.

How many different CRTs have you tried, and have you tried them on different computers as well to confirm they are working? What resolution was the screen set at? Does anything appear on the CRT screen during boot up? How many monitors are attached to the computer? Was there any special software installed for the flat screen?
 
Maybe you could find someone with a flat panel, hook your pc up long enuf to change to a lower resolution, then turn pc off and install the crt monitor.


Good advice + great people = tek-tips
 
Im just guessing on this but its likely something we should all learn anyway, so here goes.
I have always been under the impression that a pc boots to bios is standard vga resolution (like 800 x 600) and only changes to a higher resolution when it finally boots to windows, or perhaps just before that. I must be wrong in my thinking if you cant even boot to your bios?

Good advice + great people = tek-tips
 
Hi,
If you can't even see the screen to get into your bios...it doesn't appear that the monitor(s) or the video card is your issue but that there is something else wrong with your computer. Just because the power is on, doesn't mean the computer works.
 
When a PC boots up, its "native mode" is standard VGA, 640x480. Everything up through the Windows "splash" screen is in this resolution. After that, it uses whatever the Windows setting is (800x600, 1024x768, 1280x1024, etc).

If you can see the screen as it boots up, when the Windows splash screen appears hit F8 a couple of times and tell Windows that you want to start in Safe Mode. One of the features of Safe Mode is that it uses the default video setting, which is VGA. While in safe mode, you can:
1) go into Control Panel and select Display, or
2) right-click anywhere on the desktop and select Properties.

Either option will bring up the Display Properties screen.
Click on the Settings tab and change the "Screen Area" setting to 640x480. Click "Apply" to apply this change, then exit Windows and reboot the system, and when Windows comes up again it will be standard VGA mode, and will stay that way until you change it again in Windows.

If I'm working on a system with video problems, I always set the video to VGA, and then experiment with higher resolutions, allowing the system to reset itself to VGA if the screen is unviewable.

Rich (in Minn.)
 
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