Re: Wacom tablets and absolute poiting

[RVP <rvp%SDF.ORG@localhost>]

On Wed, 2 Oct 2024, Michael van Elst wrote:

> One problem with wscons is that, by default, it merges all mouse
> devices into one mouse input. If you have multiple input devices
> (like mouse + tablet), you may need to configure the X server
> separately for e.g. /dev/wsmouse0, /dev/wsmouse1. I've done this
> a long time ago, but modern X is different.

Something like this can still be done:

```sh
$ cat /etc/X11/xorg.conf.d/ws.conf
# Force creation of 2 separate input devices on NetBSD
#
Section "ServerLayout"
    Identifier  "X.org Configured"
    InputDevice "Mouse0" "CorePointer"
    InputDevice "Tablet0" "CorePointer"
EndSection

# Don't add the default `/dev/wsmouse` device. On NetBSD, this
# device is added _after_  our `Mouse0' and `Tablet0' devices,
# and so any customizations to those get overridden :(.
#
# (Note: hotplugging may not work with this setting.)
#
Section "ServerFlags"
    Option      "AutoAddDevices" "off"
EndSection

# This is the USB mouse.
#
Section "InputDevice"
    Identifier  "Mouse0"
    Driver      "ws"
    Option      "Device" "/dev/wsmouse0"
    Option      "ZAxisMapping" "4 5"
    # Option      "WAxisMapping" "6 7"
EndSection

# This is the tablet.
#
# (Use: fgrep wsmouse /var/run/dmesg.boot
# or wsconsctl(8) to find out which is which.)
#
Section "InputDevice"
    Identifier  "Tablet0"
    Driver      "ws"
    Option      "Device" "/dev/wsmouse1"
EndSection
$ 
```

but, hot-plugging is lost, and X will behave badly when USB-devices disconnect.
The keyboard gets stuck on some key and just keep repeating, for example. And,
unplugging a USB mouse when it's in use can freeze the kernel.

-RVP