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Feature #815

Disable Laptop Screen From Going Blank When Lid Closes on FreeBSD

Added by Daniel Curtis over 8 years ago. Updated over 8 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Daniel Curtis
Category:
Workstation
Target version:
FreeBSD 10
Start date:
05/24/2016
Due date:
% Done:

100%

Estimated time:
0.50 h
Spent time:
0.50 h

Description

This is a guide on how I disabled my laptop screen from going blank when closing the screen lid.

  • Enable the acpi video driver at boot:
    echo 'acpi_video_load="YES"' >> /boot/loader.conf
  • Edit the devd config file:
    vi /etc/devd.conf
    • Then add the following to the end of the file:
      #Added to fix issue with LCD staying blank after close/re-open.
#Lid switch
notify 0 {
        match "system"         "ACPI";
        match "subsystem"      "Lid";
        match "notify"         "0x00";
        action "sysctl hw.acpi.video.lcd0.active=0";
};

notify 0 {
        match "system"         "ACPI";
        match "subsystem"      "Lid";
        match "notify"         "0x01";
        action "sysctl hw.acpi.video.lcd0.active=1";
};
  • Reboot the system to apply the changes:
    reboot

Resources

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