The on/off of pc monitor (LCD) is blinking.

Its becoz there is no signal from your PC. Check the input of LCD monitor i think there might be problem with that cable! ?Mostly the cable gets weired in long run. so check thoroughly! It might work. Or else you have to repair the LCD!

Sounds like you have some bad electrolytic capacitors.
If you are tech savvy, open up the unit and look for capacitors that have bulging tops or leaking electrolyte / bulging at the bottom and replace any/all that look like this.
In most cases, this will fix you right up quick.
It's the right age for this to be the most likely issue.
The capacitors will be near the power input and the inverter stages of the circuitry.

You need to lowe the resolution AT your GADMEI Combo TV box, not at the PC since you are using the Game box to drive the monitor.

have you tried going to menu and setting back to factory defaults? also, disconnect power cable and leave unplugged for 1 minute. Plug back in then see if problem is still there. Otherwise, something is wrong with the monitor that will need serviced or exchanged.

low power consubtion first on ur moniter then cpu

Fond one solution I think.

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I have been having the same problem with my hpvs17 monitor when i start to use my web browser on linux distros. Now, for the next few days i am going to try my system on a regular crt monitor. if the monitor does not crash, than i will have to say that the hpvs17 monitor has a defect.It seems that when i go online, while i am in the middle of searching something, the monitor just shuts off and i get "input signal out of range".

Hi, insert the monitor driver of screen on swicth reinstall driver in order to detect screen.

Make sure the monitor is set for the correct input