Nice find.
Recent travels brought me to
http://askubuntu.com/questions/339842/xubuntu-hotkey-for-immediate-shutdown,
because I was looking for xfce commands to do the job, but it also has
this dbus-send command, which I just used to shut down a machine without
root privileges:
dbus-send --system --print-reply --dest=org.freedesktop.ConsoleKit
/org/freedesktop/ConsoleKit/Manager org.freedesktop.ConsoleKit.Manager.Stop
That page has also has desirable-looking xfce4-session-logout commands
(everything we would want), but they rely on a package not installed on
Lubuntu, and lxsession-logout does not yet support any parallel options.
Needless to say, on account of the success with the dbus-send shutdown
command, I am now looking hard at dbus-send:
http://manpages.ubuntu.com/manpages/trusty/man1/dbus-send.1.html
On 4/30/2014 5:14 PM, Andre Rodovalho wrote:
http://sourcecodebrowser.com/lxsession/0.4.3/lxsession-logout_8c.html
*dbus* seems to have control... I have no idea on how can you control
dbus, but my guess it you will need root...
2014-04-30 17:55 GMT-03:00 Andre Rodovalho <[email protected]
<mailto:[email protected]>>:
I know *lxsession-logout* gives us that logout window which
hibernate, suspend and others are available... I tried to insert
some commands but I had no luck. Maybe you can search this
lxssession-logout documentation or it's source code...
*lxsession-default quit* triggers to lxsession-logout...
2014-04-30 17:11 GMT-03:00 John Hupp <[email protected]
<mailto:[email protected]>>:
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
And then:
chown root:root toggle-wifi.sh
chmod 4755 toggle-wifi.sh
I also tried inserting 'sudo command' in front of the rfkill
commands in toggle-wifi.sh, and I tried 'sudo command
toggle-wifi.sh' in the lubuntu-rc.xml command statement.
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).
Is there more current documentation for this task? Is
ibus-setup supposed to handle this job somehow under
Lubuntu 14.04? Or is there another place preferred for
auto-starting setkeycodes commands?
On 4/29/2014 3:54 PM, John Hupp wrote:
Thanks, Andre, for all of those great tips.
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:
I tested here, and it works:
http://askubuntu.com/questions/181390/what-is-the-command-for-sleep-hibernate
|*pm-suspend* and**||*pm-hibernate*|
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.
I'm not sure what commands you can execute to sleep
and hibernate, but you can control radio with
*rfkill*. I'm not sure if those commands really
require root access, but on that case you can do a:
*gksu command*
*
*
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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