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ecosta
Guru
Joined: 09 May 2003
Posts: 477
Location: Brussels,BE
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 Posted: Sun Jun 24, 2007 9:24 am Post subject: what is so obvious that I just can't see it? |
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I am trying to get my display to switch off when I close the lid of my laptop.
I have installed acpid and read the Gentoo Power Management Guide.
So I made the following file and restarted acpid
/etc/acpi/actions/lm_lid.sh
| Code: |
#!/bin/bash
# lid button pressed/released event handler
#test -x /usr/sbin/laptop_mode && /usr/sbin/laptop_mode auto
if grep -q open /proc/acpi/button/lid/LID/state
then
logger "acpid: received an open lid action request"
/usr/bin/xset -display :0.0 dpms force on
else
logger "acpid: received a close lid action request"
/usr/bin/xset -display :0.0 dpms force off
fi
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The shell script works because the acpid events show up in /var/log/messages and I can also get it working manualy.
So my question is easy. If I can run the script manually, see that it is run by acpid and be able to run the xset command as a user... why oh why won't it run the command in bash?
Many thanks for pointing out the obvious 
-Ed
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A8N-SLI Delux / AMD64 X2 3800+ / 1024 MB RAM / 5 x 250 GB SATA RAID 1/5 / ATI Radeon X700 256MB. |
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embobo
Guru
Joined: 19 May 2003
Posts: 311
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| Posted: Sun Jun 24, 2007 10:58 am Post subject: Re: what is so obvious that I just can't see it? |
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| ecosta wrote: | I am trying to get my display to switch off when I close the lid of my laptop.
I have installed acpid and read the Gentoo Power Management Guide.
So I made the following file and restarted acpid
/etc/acpi/actions/lm_lid.sh
| Code: |
#!/bin/bash
# lid button pressed/released event handler
#test -x /usr/sbin/laptop_mode && /usr/sbin/laptop_mode auto
if grep -q open /proc/acpi/button/lid/LID/state
then
logger "acpid: received an open lid action request"
/usr/bin/xset -display :0.0 dpms force on
else
logger "acpid: received a close lid action request"
/usr/bin/xset -display :0.0 dpms force off
fi
|
The shell script works because the acpid events show up in /var/log/messages and I can also get it working manualy.
So my question is easy. If I can run the script manually, see that it is run by acpid and be able to run the xset command as a user... why oh why won't it run the command in bash?
Many thanks for pointing out the obvious
-Ed |
acpid runs as root and does not have permission to access your display. You would need to set the XAUTHORITY environment variable to the correct file <foo>/.Xauthority where <foo> is the user logged in. |
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mark_alec
Bodhisattva
Joined: 11 Sep 2004
Posts: 6066
Location: Melbourne, Australia
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| Posted: Sun Jun 24, 2007 11:53 am Post subject: |
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Moved from Portage & Programming to Kernel & Hardware.
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www.gentoo.org.au || #gentoo-au |
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embobo
Guru
Joined: 19 May 2003
Posts: 311
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| Posted: Mon Jun 25, 2007 10:35 pm Post subject: |
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| Quote: |
I had myself a nice google search and read what I could about xauth but I just can't figure out how to give root the rights to my 'screen'
Could you please show me how you would solve my problem.
I'd just like root (acpid) to be able to turn off the LCD whenever the lid is shut... so close yet so far
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On my laptop I use "radeontool":
| Code: |
#!/bin/sh
STATE=`cat /proc/acpi/button/lid/LID/state | awk '{ print $2 }'`
case $STATE in
"open")
radeontool light on
chvt `cat /tmp/fgconsole.out`
;;
"closed")
fgconsole > /tmp/fgconsole.out
chvt 1
radeontool light off
;;
esac
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If your graphics chip is a radeon try that (emerging app-laptop/radeontool if need be).
If you have a thinkpad there are tools that do the same thing. What sort of laptop do you have?
To solve it with xset I'm guessing you need to add this to the top of your /etc/acpi/actions/lm_lid.sh (after the #! line):
| Code: |
XAUTHORITY=/home/foo/.Xauthority
export XAUTHORITY
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where "foo" is the name of the user logged in and "/home/foo/" is their home directory. |
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Hypnos
Advocate
Joined: 18 Jul 2002
Posts: 2889
Location: Omnipresent
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| Posted: Mon Jun 25, 2007 10:46 pm Post subject: |
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With my Radeon, vbetool works just as well as radeontool for turning off the display.
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