I have a Dell U2711 Flat Panel Monitor, which I have been using with my Mac, preIntel and Intel. Suddenly I cannot acces to any control, instead a padlock appears on my screen. Any help?

  • This is a display issue – Jash Jacob Sep 28 '14 at 11:18

Press and hold the two bottom buttons (4+5) for 15 seconds. The lock symbol will "unlock" after 15 seconds and you should be able to use the OSD menu again.

  • it worked. life is a lot easier thanks to people like you. – Francisco Bataller Alvarez Sep 28 '14 at 16:34
  • Thanks, @FranciscoBatallerAlvarez. Feel free to mark my answer as accepted. :) – Trane Francks Sep 28 '14 at 21:34

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