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List:       freedesktop-xorg
Subject:    lcd not going backlight off
From:       "lists.x.org () bertrand ! hudzia ! net" <lists ! x ! org () bertrand ! hudzia ! net>
Date:       2021-09-30 21:05:06
Message-ID: 797bae3a-54f0-561c-416f-f8b0308047e6 () bertrand ! hudzia ! net
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Hello,

I got a laptop Asus Zephyrus Duo with two integrated lcd.

Under Xorg the main one is called eDP-1-1 and the second is DP-1-1.

When reaching idle timeout, Xorg turn off all monitor except the DP-1-1.

I've found this for the working one :

echo 1 > 
/sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-eDP-1/intel_backlight/bl_power


But it doesn't exist for the DP-1-1. It may be the reason why it stay on :/

As far as I know, the two lcd are connected to the same intel integrated 
graphic.

What logs can I give you to help me ?

Have a nice day,

     Bert.

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