Arch Linux

stonecrest

Member

From: Boulder

Registered: 2005-01-22

Posts: 1,190

turning off display with xset

This is driving me nuts. Currently, my Dell C400's display doesn't shut off when the lid is closed. I put "xset dpms force off" in acpi's handler.sh in the area under button/lid. If I run this command from a terminal, it works fine. But when I close my lid, the display flickers but doesn't turn off.

In the log, it says:

xset:  unable to open display ""

I modified the command to be "xset -display :0 dpms force off", and now the log says:

button/lid
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

xset:  unable to open display ":0"

What on earth am I doing wrong? Both commands work from a terminal..  :?

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pelle.k

Member

From: Åre, Sweden (EU)

Registered: 2006-04-30

Posts: 667

Re: turning off display with xset

I just noticed it myself really...
xset can't be run with super user privilegies, but as a normal user. Suggestions anyone? I know super user has no connection to the X server, but in the circumstances where this script is run, this is a bug.

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brain0

Developer

From: Aachen - Germany

Registered: 2005-01-03

Posts: 1,382

Re: turning off display with xset

acpid runs as superuser, so it is quite easy, try:

XAUTHORITY=/home/$YOURUSER/.Xauthority DISPLAY=:0.0 xset dpms force off

stonecrest

Member

From: Boulder

Registered: 2005-01-22

Posts: 1,190

Re: turning off display with xset

Wow, talk about an old thread..

And thanks it works perfectly heh. I ended up putting this in my handler.sh:

if grep -q open /proc/acpi/button/lid/LID/state
then
   XAUTHORITY=/home/stonecrest/.Xauthority xset -display :0.0 dpms force on
else
   XAUTHORITY=/home/stonecrest/.Xauthority xset -display :0.0 dpms force off
fi

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cdhotfire

Member

From: Ocala, Florida

Registered: 2006-02-13

Posts: 151

Re: turning off display with xset

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stonecrest

Member

From: Boulder

Registered: 2005-01-22

Posts: 1,190

Re: turning off display with xset

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I am a gated community.