See http://ubuntuforums.org/showthread.php?t=813387&page=6 #57 for
dbus-send commands that accomplish most of what I wanted.
Restart:
dbus-send --system --print-reply --dest=org.freedesktop.ConsoleKit
/org/freedesktop/ConsoleKit/Manager
org.freedesktop.ConsoleKit.Manager.Restart
Shutdown:
dbus-send --system --print-reply --dest=org.freedesktop.ConsoleKit
/org/freedesktop/ConsoleKit/Manager org.freedesktop.ConsoleKit.Manager.Stop
Suspend:
dbus-send --print-reply --system --dest=org.freedesktop.UPower
/org/freedesktop/UPower org.freedesktop.UPower.Suspend
Hibernate does not work, but it turns out that it does not work in the
Lubuntu logout menu either. See bug
https://bugs.launchpad.net/ubuntu/+source/lxsession/+bug/1300798. But if
"sudo pm-hibernate" works, then you can also make Hibernate work from
the logout menu in accord with the given workaround:
Create the file
/etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla
The file must have the following content:
[Re-enable hibernate by default]
Identity=unix-user:*
Action=org.freedesktop.login1.hibernate
ResultActive=yes
There is also a dbus-send command which would be nice for a keyboard
shortcut, but even after creating the above file it yields a "not
authorized" error for reasons I don't understand. The dbus-send command:
dbus-send --print-reply --system --dest=org.freedesktop.UPower
/org/freedesktop/UPower org.freedesktop.UPower.Hibernate
On 4/30/2014 4:11 PM, John Hupp wrote:
One problem solved: If I use "nmcli nm wifi on" and "nmcli nm wifi
off" instead of the rfkill commands, this toggles the wifi radio
without root permissions.
Now if I could find some suspend/standby and hibernate commands that
don't require root permission, this job would be done!
On 4/30/2014 3:30 PM, John Hupp wrote:
I spoke too soon. All the programs (rfkill, pm-suspend,
pm-hibernate) must run as root, and nothing I have tried so far has
allowed these keys to work as I intend.
I created /home/<user>/.config/openbox/toggle-wifi.sh with this content:
#!/bin/bash
if [ $(rfkill list wifi | grep "Soft blocked: yes" | wc -l) -eq 1 ] ;
then
rfkill unblock wifi
zenity --info --text "Enabled wireless"
else
rfkill block wifi
zenity --info --text "Disabled wireless"
fi
On 4/30/2014 1:09 PM, John Hupp wrote:
After thinking about it, I used an Upstart job to do what the
MultiMediaKeys article instructed to be done with bootmisc.sh or
rc.local.
Though I'm no better than an Upstart hacker, especially with regard
to choice of a 'start on' event, I created
/etc/init/kb-keys-customize.conf with this content:
# kb-keys-customize
# Map key codes to the scan codes emitted by Fn-F4, Fn-F5, Fn-F12
description "Map Fn-F4, Fn-F5 and Fn-F12 kernel scancodes to kernel
keycodes"
author "John Hupp"
start on local-filesystems
script
setkeycodes e017 128 e016 129 e018 130
end script
After rebooting, I found that 'xev -event keyboard' now reports that
Fn-F4, Fn-F5 and Fn-F12 are mapped to X keysyms Cancel, Redo and
SunProps, so I expect that I should be able to bind those keys in
lubuntu-rc.xml to Andre's suggested commands.
On 4/29/2014 6:08 PM, John Hupp wrote:
The next problem is that Fn-F4 and Fn-F5 don't generate any
keysyms, so they can't be bound to the commands suggested by Andre.
To deal with that, I've been following the In-Depth Instructions in
https://help.ubuntu.com/community/MultimediaKeys, and I have
identified the scancodes and picked a couple unassigned kernel
keycodes, but that article is old, and writing setkeycodes commands
into /etc/init.d/bootmisc.sh or /etc/rc.local seems deprecated
(those files don't exist).
On 4/29/2014 3:54 PM, John Hupp wrote:
I've been looking at the Exec lines in several versions of
~/.config/autostart/LXRandR-autostart.desktop (created when one
clicks Save in LXRandR) and thinking about how I could create
something that would cause Fn-F7 to toggle through the LVDS, VGA
and S-Video outputs, but your approach -- simply binding to
LXRandR -- is a MUCH better idea!
And if I wanted to add the ability to extend the desktop instead
of mirroring it, I could install arandr and just bind to that instead.
On 4/29/2014 3:18 PM, Andre Rodovalho wrote:
2014-04-29 16:13 GMT-03:00 Andre Rodovalho
<[email protected] <mailto:[email protected]>>:
On lubuntu-rc.xml I do:
<keybind key="XF86Display">
<action name="Execute">
<command>lxrandr</command>
</action>
</keybind>
*lxrandr* deals with additional monitors, you just enable
them an apply.
Hope that helps! To test the shortcuts without restarting all
the system you can restart only openbox: *openbox --restart*
2014-04-28 22:03 GMT-03:00 Israel <[email protected]
<mailto:[email protected]>>:
On 04/28/2014 07:48 PM, John Hupp wrote:
> I was trying to watch Netflix on a laptop (with
Lubuntu) connected to
> a TV by S-Video connection. I found out that Fn-F7 was
not working to
> select the external VGA or S-Video displays.
>
> Subsequently I found that Fn-F4 does not put the laptop
to sleep, and
> Fn-F5 does not toggle the WiFi radio on/off. (The
other common
> special keys work OK.)
>
> So I'm trying to get those keys working that way via
entries in
> lubuntu-rc.xml.
>
> With 'xev -event keyboard' I found out that Fn-F7
produces the keysym
> 'XF86Display' but I still need to know what command to
bind that to.
> So that's my first question.
>
> Fn-F4 and Fn-F5 does not produce any keysym's, so I'm
currently at a
> loss for how to proceed next with those.
>
>
Hi,
you can use arandr to make a shell script to switch the
display to a
certain mode. Plug in the monitor and use arandr to make
a setup you
want, and save that. Then open your config file for
openbox and set
the keyboard shortcut for your display key (i.e. XF86Display)
to execute the
<command>
/bin/bash /path/to/scriptname.sh
</command>
while scriptname.sh is whatever you saved the setup as
with the correct
path.
arandr is a front-end for xrandr. So the script is
actually using
xrandr to modify your display settings.
I hope this helps.
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