[ltp] How are hotkey and ACPI events handled on newer Thinkpads
(2010+) with 3.x kernels?
Jonas Camillus Jeppesen
linux-thinkpad@linux-thinkpad.org
Mon, 21 Jan 2013 10:09:52 +0100
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Thank you for your input Ethan.
I will look at your configurations this afternoon. To keep the
"discussion" going I will however add this right away:
> Right now only brightness up/down (fn+home/end) works if I choose
> not to launch gnome-settings-daemon (i.e. toggle touchpad, volume
> etc. does not work).
>
>
> Nothing reported by xev? there are lower level ways of defining
> hotkeys which can be tried. it may take some work but even in cases
> where there was absolutely no response I've been able to eventually
> assign proper behaviors to most hotkeys on this and other thinkpads.
> I'd be happy to detail the methodology as best I can that I used to
> sort this out in the past.
xev registers all fn+fx events and fn+end/home both with and without
gnome running. xev does not register the dedicated volume up/down and
mute keys.
A thing that puzzles me is that the brightness up/down keys
(fn+end/home) works both with and without gnome whereas other keys
(toggle tuochpad for example) does not (they are captured by xev but
nothing happens). What makes the brightness keys special and what
handles those keys compared to what handles all the other keys? Whatever
handles the brightness keys seem to be running independent of gnome
whereas what ever handles the other keys is somehow dependent on gnome.
Any ideas?
Best regards
Jonas C. J.
On 21-01-2013 02:38, Ethan Schoonover wrote:
> On Sun, Jan 20, 2013 at 5:01 PM, Jonas Camillus Jeppesen
> <wuhtzu@gmail.com <mailto:wuhtzu@gmail.com>> wrote:
>
> I am trying to understand how hotkeys (special keys, thinkpad
> extra keys, fn-combinations) and ACPI events are handled on newer
> Thinkpads (lets say from 2010 and onwards. I am hoping to cover my
> own T420) when they run Linux with a 3.x kernel. The reason being
> that I would like to use no established desktop environment, but
> just a window manager and status bar (xmonad+xmobar).
>
>
> I'm using xmonad and xmobar exclusively with my own
> power/display/system management, acpi and hotkey scripts. No desktop
> environment.
>
> My acpi handler is as minimal as possible as I currently prefer to
> deal with most keys via xmonad directly. Here it is:
> https://gist.github.com/4582988
>
> My xmonad config is here
> https://github.com/altercation/es-etc/blob/master/xorg/.xmonad/xmonad.hs -
> See the "keysMedia" and "keysSystem" and "keysSystemCodes" functions
> for how I handle them (including the battery key which, in this case,
> doesn't have a functioning symbol).
>
> This is all on Arch Linux, 3.6 kernel .
>
> If useful, you can see my "system" "displays" and "power" bash scripts
> in this repo: https://github.com/altercation/es-bin They are all from
> scratch, minimal bash scripts to handle almost everything a normal
> desktop environment does, specific for my thinkpad, but relatively
> adaptable to other makes/models.
>
>
> Right now only brightness up/down (fn+home/end) works if I choose
> not to launch gnome-settings-daemon (i.e. toggle touchpad, volume
> etc. does not work).
>
>
> Nothing reported by xev? there are lower level ways of defining
> hotkeys which can be tried. it may take some work but even in cases
> where there was absolutely no response I've been able to eventually
> assign proper behaviors to most hotkeys on this and other thinkpads.
> I'd be happy to detail the methodology as best I can that I used to
> sort this out in the past.
>
> Best,
> Ethan Schoonover
>
> http://ethanschoonover.com/solarized
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<div class="moz-cite-prefix">Thank you for your input Ethan.<br>
<br>
I will look at your configurations this afternoon. To keep the
"discussion" going I will however add this right away:<br>
<br>
<blockquote type="cite">
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Right
now only brightness up/down (fn+home/end) works if I choose
not to launch gnome-settings-daemon (i.e. toggle touchpad,
volume etc. does not work).<br>
</blockquote>
<div><br>
</div>
<div style="">Nothing reported by xev? there are lower level
ways of defining hotkeys which can be tried. it may take some
work but even in cases where there was absolutely no response
I've been able to eventually assign proper behaviors to most
hotkeys on this and other thinkpads. I'd be happy to detail
the methodology as best I can that I used to sort this out in
the past.<br>
</div>
</blockquote>
xev registers all fn+fx events and fn+end/home both with and
without gnome running. xev does not register the dedicated volume
up/down and mute keys.<br>
<br>
A thing that puzzles me is that the brightness up/down keys
(fn+end/home) works both with and without gnome whereas other keys
(toggle tuochpad for example) does not (they are captured by xev
but nothing happens). What makes the brightness keys special and
what handles those keys compared to what handles all the other
keys? Whatever handles the brightness keys seem to be running
independent of gnome whereas what ever handles the other keys is
somehow dependent on gnome. Any ideas?<br>
<br>
Best regards<br>
Jonas C. J.<br>
<br>
On 21-01-2013 02:38, Ethan Schoonover wrote:<br>
</div>
<blockquote
cite="mid:CAK3eu+RZy60WCHRggLexj-UfvPt4Yn3a7SuXywy27pZixNWPJA@mail.gmail.com"
type="cite">
<div dir="ltr">On Sun, Jan 20, 2013 at 5:01 PM, Jonas Camillus
Jeppesen <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:wuhtzu@gmail.com" target="_blank">wuhtzu@gmail.com</a>></span>
wrote:<br>
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">I
am trying to understand how hotkeys (special keys,
thinkpad extra keys, fn-combinations) and ACPI events are
handled on newer Thinkpads (lets say from 2010 and
onwards. I am hoping to cover my own T420) when they run
Linux with a 3.x kernel. The reason being that I would
like to use no established desktop environment, but just a
window manager and status bar (xmonad+xmobar).<br>
</blockquote>
<div><br>
</div>
<div style="">I'm using xmonad and xmobar exclusively with
my own power/display/system management, acpi and hotkey
scripts. No desktop environment.</div>
<div style=""><br>
</div>
<div style="">My acpi handler is as minimal as possible as I
currently prefer to deal with most keys via xmonad
directly. Here it is: <a moz-do-not-send="true"
href="https://gist.github.com/4582988">https://gist.github.com/4582988</a></div>
<div style=""><br>
</div>
<div style="">My xmonad config is here <a
moz-do-not-send="true"
href="https://github.com/altercation/es-etc/blob/master/xorg/.xmonad/xmonad.hs">https://github.com/altercation/es-etc/blob/master/xorg/.xmonad/xmonad.hs</a> -
See the "keysMedia" and "keysSystem" and "keysSystemCodes"
functions for how I handle them (including the battery key
which, in this case, doesn't have a functioning symbol).<br>
</div>
<div style=""><br>
</div>
<div style="">This is all on Arch Linux, 3.6 kernel .</div>
<div style=""><br>
</div>
<div style="">If useful, you can see my "system" "displays"
and "power" bash scripts in this repo: <a
moz-do-not-send="true"
href="https://github.com/altercation/es-bin">https://github.com/altercation/es-bin</a> They
are all from scratch, minimal bash scripts to handle
almost everything a normal desktop environment does,
specific for my thinkpad, but relatively adaptable to
other makes/models.</div>
<div style=""><br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><br>
Right now only brightness up/down (fn+home/end) works if I
choose not to launch gnome-settings-daemon (i.e. toggle
touchpad, volume etc. does not work).<br>
</blockquote>
<div><br>
</div>
<div style="">Nothing reported by xev? there are lower level
ways of defining hotkeys which can be tried. it may take
some work but even in cases where there was absolutely no
response I've been able to eventually assign proper
behaviors to most hotkeys on this and other thinkpads. I'd
be happy to detail the methodology as best I can that I
used to sort this out in the past.</div>
<div><br>
</div>
<div>Best,</div>
<div style="">Ethan Schoonover</div>
<div style=""><br>
</div>
<div style=""><a moz-do-not-send="true"
href="http://ethanschoonover.com/solarized">http://ethanschoonover.com/solarized</a></div>
</div>
</div>
</div>
</blockquote>
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