Weird Monitor Problem

[m1cha3l]

Hello everyone
i am facing a very mysterious problem
with my monitor

the Monitor is Asus : VW193D-B Splendind
let me tell you some historical events if u dont want bypass it

in a couple of days before i accidentally remove the vga cable from the
screens side and when i plug it in again i was unable to
see monitor and native resolution in device manager
the monitor was reported as : Generic Non-Plug n Play one
i fix it by forcing EDID via registry
also linux report the monitor as unknown
if the computer end is dvi the monitor showed correctly

everytime i open the A/C the monitor flashes instantly going
from black screen to whatever it was display without the
power led goes at power saving one state (orange color)

everytime the A/C motor open or close almost everytime
i face this problem

the weird is that sometimes in night due to weather
i face this problem but not when i forced without wanted it
via the A/C

i check the capacitors its ok

Can u please help me at this
or at least explain me why this happened ?

thanks everyone in the forums

 

[mfenn]

What does A/C stand for? Air Conditioning? Alternating Current (ie. mains power)?

 

[m1cha3l]

What does A/C stand for? Air Conditioning? Alternating Current (ie. mains power)?

A/C means Air Conditioning sorry for not declare it before

 

[mfenn]

Is your air conditioner a wall or window type unit? If so, and if it's on the same circuit as your monitor, I would bet that it causes the voltage on that circuit to sag enough such that the monitor resets. Try moving the air conditioner or the monitor to a different circuit.

 

[m1cha3l]

Is your air conditioner a wall or window type unit? If so, and if it's on the same circuit as your monitor, I would bet that it causes the voltage on that circuit to sag enough such that the monitor resets. Try moving the air conditioner or the monitor to a different circuit.

thanks for answering
i forget to mention
the Air Condition is wall mounted
also
i change the power supply
of the monitor
i set it in a two different ups in a two
different power wall jacks
the same thing

thanks again

 

[mfenn]

The different power outlets may not necessarily be on different circuits however, and unfortunately most inexpensive consumer-grade UPS's don't do a good job of handling voltage sags.

To determine what outlets are on what circuit, you can go to your breaker box and turn off power to the A/C. Then go and see which outlets still work, those will be on a different circuit. Try plugging the monitor into one of those (and of course flip the breaker back on).

 

[m1cha3l]

The different power outlets may not necessarily be on different circuits however, and unfortunately most inexpensive consumer-grade UPS's don't do a good job of handling voltage sags.

To determine what outlets are on what circuit, you can go to your breaker box and turn off power to the A/C. Then go and see which outlets still work, those will be on a different circuit. Try plugging the monitor into one of those (and of course flip the breaker back on).

thanks for the info so the problem is on monitor cause of years of work or in electrological insfrastructure ? Thanks

 

[mfenn]

thanks for the info so the problem is on monitor cause of years of work or in electrological insfrastructure ? Thanks

It's probably a combination of factors. In a stable electrical environment, the monitor would probably be fine. But also, a perfectly functioning monitor would probably be functional in your somewhat unstable environment.

I'm guessing some filtering capacitors in the monitor are going/have gone bad and thus cannot bridge the low-voltage situations as well as they used to.

 

[m1cha3l]

It's probably a combination of factors. In a stable electrical environment, the monitor would probably be fine. But also, a perfectly functioning monitor would probably be functional in your somewhat unstable environment.

I'm guessing some filtering capacitors in the monitor are going/have gone bad and thus cannot bridge the low-voltage situations as well as they used to.

thank you very much for ur time and the explanation you gave to me thanks again