Getting special keys to work

Wed Apr 30 17:09:30 UTC 2014

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 
>>> <andre.rodovalho at gmail.com <mailto:andre.rodovalho at gmail.com>>:
>>>
>>>     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 <israeldahl at gmail.com
>>>     <mailto:israeldahl at gmail.com>>:
>>>
>>>         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.
>>>
>>>         --
>>>         Regards
>>>
>>>
>>>         --
>>>         Lubuntu-users mailing list
>>>         Lubuntu-users at lists.ubuntu.com
>>>         <mailto:Lubuntu-users at lists.ubuntu.com>
>>>         Modify settings or unsubscribe at:
>>>         https://lists.ubuntu.com/mailman/listinfo/lubuntu-users
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>
>
>

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