Mathieu Chouquet-Stringer wrote:
> It's pretty explicit, acpid runs as root and cannot access your display.
Indeed, this is true, but more importantly:
a) Why is it doing this?
b) What changed to make it not work in FC4 where it did work in FC3?
c) How do I get it to work? :)
>>+ /usr/X11R6/bin/xset -display :0 dpms force standby
>>Xlib: connection to ":0.0" refused by server
>>Xlib: No protocol specified
>>
>>/usr/X11R6/bin/xset: unable to open display ":0"
>
> The same thing would happen if you try to run your script, as root, at the
> console (not X) while logged in under X.
You are correct. This is exactly what happens.
Here's the script (ignore the wrapped "AUTH=" lines):
#!/bin/bash -x
PID=`pidof /usr/X11R6/bin/X`
if [ "$?" == "1" ]; then
# not using X
/usr/local/bin/radeontool light | grep "looks on" > /dev/null
if [ "$?" == "0" ]; then
/usr/local/bin/radeontool light off
else
/usr/local/bin/radeontool light on
fi
else
# using X
AUTH=`perl -ne'/\x00-auth\x00(.*?)\x00.*/&&print$1' /proc/$PID/cmdline`
if [ x"$AUTH" = x ]; then
AUTH=`perl -ne'/(^|\x00)XAUTHORITY=(.*?)\x00/&&print$2'
/proc/$PID/environ`
fi
export XAUTHORITY=$AUTH
/usr/X11R6/bin/xset -display :0 dpms force standby
fi
