My LG monitor blacks out intermittently when warm, I have tried it on another computer so it is a fault with the monitor. It blacks out every few seconds, sometimes it takes longer. It is 2 years old.

Could be a hardware issue, If the screen has a power light, does it change coulor (often green to orange) when the problem happens. If so its the screen inst getting any signal. It could be a connector or cable.

Try separating the wiring behind the computer. Cross-talk of signals can be the issue.

Check the electrolytic capacitors inside in the power supply board portion. replace all busted ones.

Make sure there is a solid connection between the monitor and the computer. Also, make sure the computer is on. The monitor won't power up completely unless there is a signal going to it. Also, see if the power pack on the monitor's cord is awfully warm. You may have an overheating problem and as a safety the monitor shuts itself off. If it is warm try plugging the monitor into a surge protector or different outlet. Don't use a power adapter that didn't come with the monitor. It may provide too much or too little power. If there is still a problem, contact LG. Hope this helps. Good luck.

Simplest solution first; check your cables. If the connections are good, but it still doesn't work, try your monitor with another computer. If it works, you need to update the drivers on your computer. If it doesn't, the problem is with the monitor. If your computer needs drivers from LG for the monitor, you need access to another computer (or another monitor to go online). Go to LG's website and look for SUPPORT. Download drivers for your monitor specific to your operating system (Windows, Mac OSX, etc.) and install.

Check the monitor cord to the PC, tighten them as also check the mother board for any loose connections. If possible try with an another monitor to confirm that the fault is with the monitor or not. If so open the monitor after disconnection of mains and solder all the suspected joints , seen to look dry. Check for loose components, capacitors, IC or resistor that detach the soldering connection when it is hot.

no it is a faulty monitor I have had three of these monitors with the same problem...

Hi,
There could be a problem with your display card settings or the display card itself. If you are using Windows operating system, make sure that you have the monitor driver installed for that specific monitor. This is to ensure that Windows only allows settings for which your particular monitor was designed.
Let me know if I can assist you any further regarding this.
Best wishes,
Graemevm

i cant sugest anything but what i can say is that i think you will have to get a new screen that is my oppinion.

sorry for the inconveience.

please rate for my help to you.
thank you.

on the pc, choose a 640x480 vga screen...if ok, then gradually build higher res screens from there