Le 29/12/2017 à 10:44, Didier Kryn a écrit :
Found a simple solution to suspend on lid close:
1) uninstall xfce4-power-manager (probably true with
power-managers from other DEs). It doesn't work and it prevents the
default acpi methods to be called.
2) edit /etc/default/acpi-support
uncomment line 36: #LID_SLEEP=true
uncomment line 40: #LID_SHUTDOWN=true
The second parameter tells the script to shutdown if suspend
fails. It isn't mandatory, but I would recommend it for a laptop.
Push the power button to resume. Openning the lid isn't enough.
If you have xscreen-saver installed, then the screen will be
locked on resume.
Actualy xscreensaver also prevents the suspend. I didn't notice the
first time because it seems to take a logout-login before the presence
of the daemon to be noticed.
There is a hackish workaround: comment the following 3 lines in
/etc/acpi/lid.sh:
if { CheckPolicy || HasLogindAndSystemd1Manager; }; then
exit
fi
Didier
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