My monitor keeps turning off, I've checked all the cables, switched power cables, tried only 1 monitor on (since I'v got a dual display), tried VGA instead of hdmi with only one monitor on aswell and the problem is still there.
The problem appeared as soon as I got the second display, an Asus VP228H which is the only one of them that has this problem, the other one still works fine despite the years of use.
The problem seems to have a higher intensity (turns off more frequently) when I start my computer (as it betters if I take out the power cable and put it back on) or in certain games such as Counter Strike: GO (it is much more rare in League of Legends, for example), I've noticed aswell that the problem is lowered when the monitor is connected by VGA to the computer. The power light of the monitor goes black and turns back on in something like half a second. The hdmi cable is old and the VGA one came with the monitor.
Thank you, have a good day.