Re: Bug#561711: udev: Samsung R70/R71 keymap

[Martin Pitt <martin.pitt@ubuntu.com>]

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Hello Clemens,

Clemens Buchacher [2010-01-04 17:18 +0100]:
> /lib/udev/keymap correctly reported the keypress events, but xev did not.
> echo 166-245 > /sys/devices/platform/i8042/serio0/force_release finally
> fixed the problem. Is there any way to diagnose this issue without trial and
> error? 

I'm not aware of one. However, on the Samsung NC10 where I tried this
once it helped to switch back and forth to a VT to unbreak X.org and
the stuck key.

> Maybe we should include a hint in README.keymap.txt.

Indeed, I added a note about force-release there now.

> It was a real pain to debug this, especially since I didn't even know where
> to look, and google returns tons of misleading bug reports concering hal.
> I'm afraid README.keymap.txt is the last place that people find. I have no
> idea what to do about it though.

In Ubuntu bug reports we point people to exercise
https://wiki.ubuntu.com/Hotkeys/Troubleshooting, which also points to
that README (if the problem is a missing keymap or force-release
quirk). I guess other distros need to do/are doing something similar.

> I suppose something like the following patch should fix the problem
> permanently.

> -ENV{DMI_VENDOR}=="[sS][aA][mM][sS][uU][nN][gG]*", ATTR{[dmi/id]product_name}=="*N130*", RUN+="keyboard-force-release.sh $devpath samsung-other"
> +ENV{DMI_VENDOR}=="[sS][aA][mM][sS][uU][nN][gG]*", ATTR{[dmi/id]product_name}=="*N130*|*SR70S/SR71S*", RUN+="keyboard-force-release.sh $devpath samsung-other"

This would be equivalent to doing

  echo 130,131,132,134,136,137,179,247,249 > /sys/devices/platform/i8042/serio0/force_release

(which is different to what you wrote originally). Does that work for
you for all keys? If not, we need a new force-release map for your
model.

Thanks,

Martin
-- 
Martin Pitt                        | http://www.piware.de
Ubuntu Developer (www.ubuntu.com)  | Debian Developer  (www.debian.org)

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