Blanking the laptop screen

I leave my workstations on 24×7, but I always turn off my monitors when I’m away from the desk for more than a few minutes so as to save energy and preserve the LCD backlights as long as possible.

Unfortunately, I’ve never had a laptop that allows you to just shut down the LCD while leaving the machine on and running. I’m not talking about suspending or hibernating the laptop — just turning off the display. I still want to be able to SSH into the laptop, so I don’t want it powered off or “sleeping.”

Did a bit of Googling this afternoon and came up with this to power off the LCD when I want to turn the laptop screen off for a bit:

xset -display :0 dpms force off

I set this up as a launcher button on my GNOME desktop, so all I have to do is click the icon and the display is turned off. When I’m ready to use the laptop again, all I need to do is hit the touchpad or space bar and it’s up and ready to go.

Comments (4) left to “Blanking the laptop screen”

  1. Kavros wrote:

    hi, how do you set that up as a launcher button? i pressume you mean a .exe thing right? but anyway i have a vaio laptop, so i could use something like that! any chance of you posting how to set it up as a launcher thingy?
    cheers

  2. Ethem ERSOZ wrote:

    this is useful but, it just blanks the screen. the backlight is still on. I am looking for a real power saving solution. example: when acpi is disabled, pressing on the lid shuts down the backlight of the screen.

  3. Joe "Zonker" Brockmeier wrote:

    Enthem,

    It turns the backlight off on my Thinkpad, but maybe it differs for other types of LCDs.

  4. vince wrote:

    This is really helpful because I’ve also been wondering how to shut off the lcd from time to time that I navigate away from my laptop. I hope that it also shuts off the backlight of the screen. Does it?

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