My hp w2207h goes to sleep

Wake it up. No, seriously. What you see is most likely the video signal not getting from the video card to the monitor. When that happens, the monitor takes a nap. Problem could be a loose cable, sleep setting on the computer, or bad video card. Check each of these in the order I listed, as they are easy to hard.

There is a slim chance that the monitor indeed has a problem. Rule out the other possible issues before jumping to that conclusion. If you ultimately believe it to be the monitor, try to borrow someone else's monitor to see how that one reacts.

tried to hooked up with other monitor just to ensure if the cause is your pc. if the monitor doesn't receive signal it will goes to stand by mode.

check the on screen menu on the monitor that you havent got a sleep timer set or aggressive power saving on. Also check on your pc that you dont have it set to turn the monitor off after two minutes

Check the cord and connections for the monitor; this has one wire that must have voltage on it or the monitor goes to sleep, and a broken wire or loose connection will fool it into thinking you are powering down. If this doesn't work try going into power options and setting monitor to never power down.

From my experience, it probably means that there's a problem with the COMPUTER, rather than the monitor... Please follow my tips here.

Regards,
Pelu.

the most likely issue is the computer's graphics card. to avoid extra problems, try replacing it with the same model graphics card.

either your video card has stopped working or your cable to your monitor or the monitor is bad. Try to hook another monitor up to it see if it turns off if it doesn't then the video card needs to be replaced. If it does its the monitor.

try another cable I have tis problem on mine & I have to do them up solid, also check for bent pins in the cable & bend the back carefully & unplugged.If not you may need to set up the computer to output, try another monitor to rule that out.
Hope this helps!

Sounds like your video card is failing. If the video is internal to the motherboard, get a video card and add it to the motherboard if there is an open video slot available

remove the serial bus cable and reinstalled the software that came with it,itmay be infectted by virus