Re: 1) Lid Buttons 2) Stylus Input 3) Fingerprint Scanner

[Tobias Geerinckx-Rice]

Raghav,

Mark H Weaver wrote:

Raghav Gururajan <r...@disroot.org> writes:

What and how should I do to enable the following in my Thinkpad X200T (X200 Tablet)?

I just got an X230T so I'm very interested in getting the same things working.

1) Buttons on the lid like screen rotation, lock screen etc.

up so that the buttons behave as expected:

  https://www.thinkwiki.org/wiki/Tablet_Hardware_Buttons


run when you press a key.

Those buttons act like special keys on your keyboard. The following web page lists their scancodes, and gives some advice on how to set things The page recommends using xbindkeys, which is provided by the Guix "xbindkeys" package, but depending on which desktop environment you use, there might be a more straightforward way to arrange for a script to be

 xrandr --output LVDS-foo --rotate normal|left|right|...





Haha no.

Exactly. I used ‘xev’ (available in Guix) to get the keycode for what I presume is the screen rotation button(? there are two, the pictograms are pretty vague, but only one generates classic key codes) and added bindsym XF86TaskPane exec --no-startup-id /home/nckx/.config/i3/rotate-screen.sh to my ~/.config/i3/config. rotate-screen.sh is a simple (well…) shell script that uses xrandr to query the current screen orientation and cycle to the next one (I use left/right/normal, never inverted): The only problem is that pressing the button once produces a deluge of press events. Luckily the number is usually constant (so it's not just a ‘repeat’ without a ‘delay’) making the end result predictable. In practice it means I'm cycling backwards through the orientations. Good enough for now. It's not like I can actually use i3 properly in tablet mode anyway. Will this finally push me to GNOME?

2) Input using stylus pen.

don't know about other desktop environments off-hand.

The touch screen is apparently a Wacom device. From GNOME, you might be able to easily set it up from the "Wacom" section of GNOME settings. I I will note, however, that the "xsetwacom" program, which apparently can be used to enable the Wacom device within an Xorg session, should be provided by our "xf86-input-wacom" package. You might find other useful information on <https://wiki.archlinux.org/index.php/Wacom_tablet>, although note that "permanent configuration" will be much different on a

Guix system than on Arch.


'services' field if needed:

    (services (append (list ;; other services go here
                            (set-xorg-configuration
                             (xorg-configuration
                              (modules (cons xf86-input-wacom
                                             %default-xorg-modules)))))
                      %desktop-services))

To set it up permanently, it *might* be sufficient to add something like the following to your OS configuration, merging it with your existing

 Section \"InputClass\"
  Identifier \"Touchscreens\"
  MatchIsTouchscreen \"on\"
  MatchDevicePath \"/dev/input/event*\"
  Driver \"libinput\"
 EndSection

I'm sure this works fine, but at least the X230T's (multi-)touch screen is fully supported by libinput as well: So I don't think the Wacom driver (which I don't much like anyway) is mandatory.

3) Fringerprint scanner for authentication.

Kind regards,

T G-R

I'm still stuck on ‘no value specified for service of type 'fprintd'’ (see elsewhere in this thread) but admittedly I gave it all of 5 seconds before moving on to more important stuff. It's a fun gimmick though :-)

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