Monitor gets no more input signal after turning off and on (computer still runs)

[Peter Swindon]

In former times I could turn off my TFT monitor (with running WinXP computer).
After a couple of hours I returned and turned on the TFT monitor again.
After 2-3 seconds the TFT monitor detects the physical signal and the WinXP desktop is shown as intended.

Since a few days this does not work any more.
When I turn off and (after a while) turn on the monitor again there is only a message "no input signal"
and the screen remains black.

So there must be a settings changed. Most probably with ACPI or power management or driver setting.

How can I make the TFT monitor re-work again?

Peter

 

[Jim]

In former times I could turn off my TFT monitor (with running WinXP computer).
After a couple of hours I returned and turned on the TFT monitor again.
After 2-3 seconds the TFT monitor detects the physical signal and the WinXP desktop is shown as intended.

Since a few days this does not work any more.
When I turn off and (after a while) turn on the monitor again there is only a message "no input signal"
and the screen remains black.

So there must be a settings changed. Most probably with ACPI or power management or driver setting.

How can I make the TFT monitor re-work again?

Peter

System restore to when it was working .

 

[VanguardLH]

NOTE: Original list of newsgroups restored in my reply. Don't be rude
by shotgunning out your post to multiple newsgroups and then yanking
the discussion away from some of them. If you don't want to continue
your discussion in the other newsgroups then don't post there.

In former times I could turn off my TFT monitor (with running WinXP
computer). After a couple of hours I returned and turned on the TFT
monitor again. After 2-3 seconds the TFT monitor detects the physical
signal and the WinXP desktop is shown as intended.

Since a few days this does not work any more. When I turn off and
(after a while) turn on the monitor again there is only a message "no
input signal" and the screen remains black.

So there must be a settings changed. Most probably with ACPI or power
management or driver setting. How can I make the TFT monitor re-work
again?

If you have multiple inputs (VGA, DVI, DPMI) on the *unidentified*
monitor then there should be on-monitor controls for selecting which
input to use. The auto-select may not be automatic at all. Instead
the 2-3 second lag you saw was merely the monitor waiting for a valid
video signal on whichever input to which the video cable is connected.
You may have to use the on-monitor menus to select which input to use.