Ytdyklly

I would like to suspend my xubuntu (14.04) system from a keyboard shortcut without entering my superuser password (sudo). I'm looking a command line which I can convert to a shortcut.

So far, I tried two solutions:

Xfce command:

xfce4-session-logout --suspend

Problem: The system doesn't lock the session. I don't need to enter my password for the wake-up and I want to do it.

Dbus:

dbus-send --print-reply --system --dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.Suspend

Problem: After wake-up, the Internet connection is down and I have to reboot the system to get it back.

Is there a third solution which 1. ask the password during the wake-up process, and 2. doesn't mess up with Internet connection?

In fact, the graphical default shortcut (from the menu) works fine. I just don't know which command line is called.

I wrote a script. It seems to do what you ask for:

#!/usr/bin/env zsh

# Custom suspend

#

# (That 'zsh' up there can be switched to 'bash', or 

# pretty much any shell - this doesn't do anything too fancy.)

#

# Dependencies are mostly xfce stuff:

#

#   xbacklight

#   xflock4

#   xfce4-session-logout



# Set how dim we want the screen to go (percentage, out of 100)

dim=5



# Pack up your toys

previous_dimness=$(xbacklight -get)



# Turn down the lights

xbacklight -set $dim



# Lock the door (this requires a password to get back in)

xflock4



# And go to sleep

xfce4-session-logout --suspend



# When we wake up, turn the lights back on

xbacklight -set $previous_dimness

You can very simply send the command for it to lock screen first, and then have it suspend:

xscreensaver-command -lock ; xfce4-session-logout --suspend

For usage of xscreensaver-command, run xscreensaver-command --help

Oddly enough xfce4-session-logout --suspend works just fine, and my system is xubuntu 14.04.
It also does lock the session, although I have switched on the option "lock screen before sleep", go to Settings->Session and Startup-> Advanced, and check if it switched on there.

This command works for me:
I just make a launcher for desktop and set the Shutdown Icon for that. put this command in command filed:

dbus-send --print-reply --system --dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.Suspend

fist time ask me to make Executable and after that working very well.

I'm using wicd for Internet connection and It's working well too after waking up!

If you're on a laptop and just want a key to press. You can use the power button.
The behavior can be set from the Power settings:

1. Open Settings Manager (or by command : xfce4-settings-manager )


2. Open Power Manager settings


3. In General : set When power button is pressed to Ask


4. Close Power Manager settings

If you have ACPI scripts installed, deactivate or update the
power-button script from

/etc/acpi/events/, and change the action field to /bin/true:

# EXAMPLE

event=button/power.*

#action=/usr/lib/acpid/power_button

action=/bin/true

Ref: https://wiki.xfce.org/tips#solution_2