Arch Linux

Gregoire

Member

Registered: 2013-03-23

Posts: 23

Howto set monitor resolution when I start with the monitor turned of ?

Hello,

I use the onboard Intel HD 4000 to display on my Dell monitor which works out of the box with native 2560x1600 resolution as long as I boot with the monitor turned on (both console and X11).

The problem is that sometimes I don't boot with the monitor being powered on and  just need the monitor later.

I found in aur the program read-edid which gives me the needed info in case my monitor isn't powered at boot.

How could I use that information, for the console (I guess it's relared to grub2) and for X11 ?

Thank you very much !!!

ctxfi-user

Member

Registered: 2010-10-31

Posts: 56

Re: Howto set monitor resolution when I start with the monitor turned of ?

This is related to KMS.

Take a look in the wiki: Kernel Mode Setting: Forcing modes and EDID and Intel Graphics: KMS (Kernel Mode Setting)

Gregoire

Member

Registered: 2013-03-23

Posts: 23

Re: Howto set monitor resolution when I start with the monitor turned of ?

Wouah, some time ago (well two years maybe) I checked those doc (for my gentoo at that time) and it wasn't clear enough for me but now it's really straightforard !!!

Thank you very much (I haven't rebooted to test but I will).

Have a great day !!!