Monitor goes black randomly - posted in External Hardware: So I have an acer x223w monitor. Over the past few months, my primary monitor randomly (no pattern to the issue) goes black but the led shows it to still be working. I've noticed that my external LCD randomly went black a couple of times. Looked at other posts about this issue be could not find anything addressing my issue. I have a brand new 2017 Spectre 15" laptop hooked up to an external monitor with an HDMI cable. In this configuration the external monitor blacks out for a couple of seconds randomly a couple of times per hour. As soon as I stop being active on the computer, my monitor blinks black and then the screen reappears. Recently, lots of computer users complain that their PC or laptop screen goes black every few seconds: case 1. Ive had it for about 3 years but about a year ago it blacked out on me out of nowhere. I have a similar problem using an external LG monitor, flashes to black for a few seconds then comes back on. It happens when I'm gaming, watching youtube videos and even when I'm just reading something on the PC. "Sometimes this doesn't happen but when it does, my screen would go black for a second then 5 seconds go by and it happens again (it would repeat another 10 or more times). 1) Press the menu button on your monitor and select Menu. The monitor is detected, as I can drag windows over to it. Showing on screen [Displayport] indicating it doesn’t get signal. Check if this fixed your problem. I'm hoping that Apple writes a driver to fix this since it's pretty annoying to be writing then everything goes black. I left for lunch and came back to a black screen. Comment brikeh macrumors 6502a. Secondary monitor is working. It goes black for about 2 seconds, and at seemingly random times, it flicker back and fort. Windows 10 Monitor Keeps Going Black Then Comes Back. Does it all the time after a few minutes. I bought an Acer Nitro VG240YP monitor a couple days ago and the display goes black for a second and turns back on. In this case, you’ll need to bring your monitor or your computer to a repair store and seek professional help. I've tried installing updates and the hdmi cord, but nothing has fixed this. Only way to get the primary back is to reboot the computer. This happens at random times. Monitor randomly goes black for one second at a time I have a relatively new monitor and computer system (bought May 2003) and in the past few months, the monitor will go completely black for about one second and then come back on randomly throughout the day. External Monitor is detected, but black My monitor was working perfectly this morning. Got a monitor issue. If your monitor still goes black randomly, your issue is very likely caused by a hardware failure. 2) Go to Other Settings, then select Factory Reset.