This has most likely annoyed many of you at some point. You turn on your monitor one day and see a jeering message telling you something about an “OSD Lockout”. It doesn’t allow you to change any of your monitors settings, including the setting intended to turn off this message. While I’ve only seen this error on HP monitors I know that others have encountered it on other brands as well. The fixes I provide should work on those monitors too. (Note: OSD stands for On Screen Display.)
Plug in the monitor and power it up. Hold down the Power button until you get a message saying “OSD Unlocked”. If the problem persists after OSD is unlocked then unplug the monitor from the wall, wait 20 seconds and try again.
Turn on the monitor and hold down the Menu button for 10-20 seconds. This should unlock the OSD.
Turn off the monitor, press down the Menu button and then turn on the monitor. Wait 10-20 seconds. This should unlock the OSD.
The Menu button may be stuck in a pressed in position. To get it “unstuck” you’ll usually need to open up the monitor. This could be tricky unless you know what you’re doing. Unfortunately there are too many models of monitor for me to provide detailed instructions. If you have warranty this is where you want to contact the manufacturer.
If you know of any other fixes feel free to contact me. Good luck!