of the laptop and monitor external both go to a black screen

OK, I have a laptop Toshiba Satellite L675D and monitor external lg I've used for more than a year. the problem I knew it is that when I turn on my external monitor both the monitor to the laptop and external monitor goes to a black screen and to get the office page I have to turn off the monitor external and in a few seconds, the computer desktop computer laptop monitor will reappear. Fault could be the problem?

Hello

1. What is the model of the LG external screen?

2. have you made changes on the computer recently?

3. have you installed all the updates on the computer?

Method 1.

Connect the external monitor to a different computer and check if it works.

Method 2.

I suggest to update the graphics drive and check if that helps.

Update a hardware driver that is not working properly: http://windows.microsoft.com/en-us/windows7/Update-a-driver-for-hardware-that-isn ' t-work properly

Refer.

Move windows between multiple monitors: http://windows.microsoft.com/en-US/windows7/Move-windows-between-multiple-monitors

Setting up dual monitor: two screens are better than one:
http://www.Microsoft.com/athome/organization/twomonitors.aspx

Guided Help: Setup dual monitor is easy in Windows 7:
http://support.Microsoft.com/kb/976064

I hope this helps.

Tags: Windows

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