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--- linux:howtos-tips [2011/12/27 04:08]
cyril [Keep screen off when lid shut]
+++ linux:howtos-tips [2014/03/28 16:18] (current)
cyril
@@ Line 427: / Line 427: @@
 Ensure that the file misc.start is executable.
+===== Fix laptop wakes up immediately after suspend =====
+May be due to some USB devices, even if not plugged. Look if some USB* or EHC* or XHC* are enabled in ''/proc/acpi/wakeup'', and disable them:<code>
+echo EHC1 > /proc/acpi/wakeup
+</code>
+You can run it in a script at boot time right before suspending:<code>
+for usb in "EHC1" "EHC2" "XHC"; do
+        state=`cat /proc/acpi/wakeup | grep $usb | cut -f3 | cut -d' ' -f1 | tr -d '*'`
+        echo "device = $usb, state = $state"
+        if [ "$state" == "enabled" ]; then echo $usb > /proc/acpi/wakeup; fi
+done
+</code>
 ===== Keep screen off when lid shut =====
@@ Line 483: / Line 496: @@
 resume_nm()
 {
-    su cyril -c "(gnome-screensaver-command --lock)"
+    DISPLAY=:0.0 XAUTHORITY="/home/cyril/.Xauthority" su cyril -c "(gnome-screensaver-command --lock)"
 }
@@ Line 500: / Line 513: @@
 A more complete one to automatically detect the user name is available here:
 [[https://wiki.archlinux.org/index.php/Pm-utils#Locking_the_screen_saver_on_hibernate_or_suspend]]
+== With systemd ==
+Create service ''/usr/lib/systemd/system/slimlock.service'':<code>
+[Unit]
+Description=Lock X session using slimlock
+[Service]
+User=cyril
+ExecStart=/usr/bin/slimlock
+[Install]
+WantedBy=sleep.target
+</code>
+Ensure right permissions and enable it:<code>
+chmod a+r /usr/lib/systemd/system/slimlock.service
+systemctl enable slimlock
+</code>
+Now when you suspend the system with ''systemctl suspend'' the screen will be locked.
 ===== Hard Drive power management =====
@@ Line 528: / Line 564: @@
 +gvalue = gclient.get('/desktop/gnome/session/idle_delay')
 </code>
+===== Automatically enable/disable second screen =====
+disper -s
+disper -e
+autodisper
+for completely automatic with dock:
+http://askubuntu.com/questions/42741/how-to-automatically-switch-monitors-with-my-laptop-dock/48627#48627