External Monitor display is reversed

[Mohankumar SV]

Hello,
i have HP 2540 Laptop for this i connected External monitor. Till the day display was correct. Suddenly my mistakely i pressed some keys after this display in External monitor is reversed but in laptop LCD is coming Correclty. Onr more thing is that when i open my laptop lid, both the display's are coming perfectly. when i closed my laptop lid again display in external monitor is turned revers. Pls advice me what to do.

 

[hang-the-9]

Look in the graphic options, usually an icon in the system tray, you can rotate the screen again. Using the keyboard it's usually something like CTR-ALT-UP ARROW or some combination similar to that.