display 2 screens, can't blank laptop screen

dav_Sap · August 16, 2017 at 7:20 PM

I'm using a laptop that only runs libreelec, it's always connected to the TV via a VGA to HDMI converter ( VGA in pc, HDMI in TV).

I used this tutorial

Custom EDID - LibreELEC

To make the resolution work for the TV, I created my own edid file fitting for to my TV, and followed all the steps.

It all works I can see the kodi on my TV with great resolution (1920x1080).

However I can't get the laptop screen to go blank, and I see everything on both screens.

In the display settings the Monitor option is on "Default" if I switch it to VGA all the screens go black,

The "Black other Displays" is on (after restart as well), but I still get both screens.

Any ideas?

**Klojum** · August 16, 2017 at 10:12 PM Official Post

I'm just brainfarting here, but the 'Blank other displays' is likely done via a digital command, and VGA is an analog signal. And hence it doesn't work.

Does the laptop have a keyboard key combo to disable the onboard display?

dav_Sap · August 17, 2017 at 6:37 AM

Not that I know of, I'll search google..

It's a dell inspiron

Maybe there is some linux script I can add to startup that will do it?

dav_Sap · August 18, 2017 at 12:36 PM

I can't find anything I tried xrandr command and a lot of stuff.. Any ideas?

Haroldjr · October 26, 2017 at 11:23 AM

Try this and see if this is what you needed Force output to specific monitor at boot