Question about LG Flatron L1750S 17" LCD Monitor

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OSD Locked When I try to adjust the brightness or contrast on the monitor I get the message "OSD LOCKED". How do I unlock the OSD so I can adjust the brightness and/or use the monitor menu? Thanks, ****

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Re: OSD Locked

Press menu button for 5 seconds until the text "OSD Unlocked" appears on the screen.

Posted on Sep 10, 2007

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How do I unlock the OSD lockout on a Samsung B2430H monitor. I've unplugged the power and computer connection cable. Tried holding the menu and auto keys nothing seems to work. There is just the...

This function allows you to lock the current control settings, so that they cannot be inadvertently changed. Press and hold the MENU button for several seconds. The message "OSD LOCKED" should appear. You can unlock the OSD controls at any time by pushing the MENU button for several seconds. The message "OSD UNLOCKED" should appear.

Sep 09, 2013 | Samsung SyncMaster 753S 17" CRT Monitor

1 Answer

AOC monitor says OSD locked

OSD means on-screen display. As you make adjustments, they are displayed on the screen. You may have to press the OSD button to unlock it.

Sep 06, 2012 | AOC V22 22" Monitor

1 Answer

I get a message that OSD is locked i cant increase brightness or other settings

Please try this:
OSD Lock ?The OSD can be enabled or disabled by
pressing and holding the Menu button on the front panel for
10 seconds. If the OSD is locked, the warning message
?SD Lock?displays for 10 seconds.
?If the OSD is locked, press and hold the Menu button for
10 seconds to unlock the OSD.
?If the OSD is unlocked, press and hold the Menu button
for 10 seconds to lock the OSD.

Please leave rating if it helps.
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Jan 30, 2011 | HP Vs17 17" LCD Flat Panel Monitor

1 Answer

When i press the power button to turn off monitor, i get a power button lockout message. how do i unlock the power button

I did not see anything regarding to the Power locked out function, may be it's time to call HP. Please post back what you find out from HP.
I look at HP WEBSITE:

Locking OSD settings
When the OSD is locked, settings cannot be changed in the OSD menu. The OSD functionality is enabled or disabled by pressing the Menu button and holding it for 10 seconds. Upon disabling the OSD, an OSD Lock-out message is displayed for 10 seconds. When the OSD is locked and an OSD menu button is pressed, the OSD Lock-out message is displayed for an additional 10 seconds. When the OSD is locked, pressing the OSD menu button for 10 seconds unlocks the OSD and displays the main menu. Identifying monitor conditions
Special messages display on the monitor screen for the following monitor conditions:
  • Input Signal Out of Range : Indicates the monitor does not support the input signal because the resolution and/or refresh rate are set higher than the monitor supports. Recommended refresh rates are as follows:
    • For the w1858 monitor: 1366 x 768 @ 60 Hz.
    • For the w2338h monitor: 1920 x 1080 @ 60 Hz.
  • Monitor Going to Sleep : Indicates the screen display is entering a sleep mode.
  • Check Video Cable : Indicates a video input cable is not properly connected to the computer or monitor.
  • OSD Lock-out : When the OSD is locked, the warning message OSD Lock displays for 10 seconds.
  • No Input Signal : Indicates the monitor is not receiving a video signal from the computer on the monitor video input connector. Check whether the computer or input signal source is off or in the power-save mode.
  • Auto Adjustment in Progress : Indicates the auto-adjustment function is active and in process.

May 13, 2010 | Computer Monitors

3 Answers

The OSD Menu on the monitor itself is locked. How do I unlock it so I can adjust my settings? It was given to me, I have no printed material for it. Thanks

Turn off monitor, hold down the menu button, turn the monitor back on, release the menu button after 10-20 seconds. Your Iiyama screen will now be unlocked.

Mar 07, 2010 | HP M700 Monitor

1 Answer

Want to unlock my monitor

This is the function that locks the OSD in order to keep the current states of
settings or prevent others from adjusting the current settings.

1. Lock : Hold down the menu button for more than five seconds to activate
the OSD adjustment lock function.

2. Unlock : Hold down the menu button for more than five seconds to
deactivate the OSD adjustment lock function.

Though the OSD adjustment lock function is activated, you can still
adjust the brightness and contrast, and adjust MagicBright ( )
using the Direct button.

Found at:

Hope this helps and please remeber to give me a rating, thanks!


Apr 06, 2009 | Samsung SyncMaster 713BM 17" LCD Monitor

1 Answer

My computer screen has a blue box that pops up and say "Controls locked". I am assuming that the buttons on the bottom right hand corner of my moniter is what it is talking about because when I hit the...

This is from the user manual for the monitor. You can download a copy from hp here:

Click on the "monitor user's guide" link to download.

There are four adjustable options on the OSD settings screen: Lock OSD settings, Timeout, H Position, and V Position.
To change OSD settings:
1 Open the OSD setting screen under the Advanced menu. See
“Using the On Screen Display” on page 25.
2 Press the Browse buttons to select the option you want to adjust.
3 Press the Select button to check the option.
To change OSD lock setting:
1 Press the Browse button to select yes (lock) or no (unlock). The
setting is automatically saved when you change the value.
2 Choose Exit sub-menu and press the Select button to return to
the OSD Main Menu or press the Menu button to exit OSD.
NOTE: Once OSD is locked, all OSD functions including the
shortcut buttons are disabled. If OSD is locked, pressing
any button on the monitor directly opens the Lock OSD
settings window so that you can unlock OSD.

Dec 02, 2008 | HP Pavilion F1503 15" LCD Flat Panel...

1 Answer

Monitor is control locked

you did not given details of model, company complet discreption of problem ok no problem you press the four keys on the monitor for five seconds simultaneusly or till it will show the massage "keys unlocked" then release

Nov 23, 2008 | Compaq P 70 Monitor

1 Answer

Auto adjastment locked

Samsung implements protection into their monitors, which allows to block all settings except brightness and contrast. This "Locked" mode turns on by pressing and holding 'Menu' button for 5 seconds, and turns off by pressing and holding 'Enter' button for 5 sec.

Mar 02, 2008 | Samsung SyncMaster 193V 19" Flat Panel LCD...

3 Answers

Monitor displays "Controls Locked"

This is a "feature" they include to prevent accidental changes to the screen setup. You should be able to unlock the OSD by pushing the Menu button and the right arrow button together for about three seconds. The message "controls unlocked" should appear. Let us know if you have any other questions and please don't forget to rate the posting.

Jan 31, 2007 | LG Flatron L1715S 17" LCD Monitor

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