OnBoard: detecting tablet mode

rnalrd

Hi,

Recently installed Solus 4 on a DELL XPS 13 2in1 (9365). OnBoard has been set to Auto-show when editing text and Auto-show only in tablet mode. I've installed also acpid2. intel_vbtn module which adds support for detecting tablet mode [1] is loaded:

lab@xps13 ~ $ lsmod | grep vbtn
intel_vbtn             16384  0
sparse_keymap          16384  3 intel_hid,dell_wmi,intel_vbtn

acpid is running:

lab@xps13 ~ $ ps ax | grep acpi
  603 ?        Ss     0:00 /usr/sbin/acpid --foreground --netlink
  611 ?        I<     0:00 [acpi_thermal_pm]
 1394 pts/0    S+     0:00 grep acpi

dmesg does not print anything when switching to tablet mode and OnBoard does not show up. In Windows everything works as it should.

What am I missing here?

Thanks!

[1]
https://marc.info/?l=linux-kernel&m=150973584514025&w=2

rnalrd

So look like ACPI events and actions were not defined.

Debugging acpid allowed me to find the events:

xps13 ~ $ sudo acpid -f -d -l

After that it was trivial to define them and write an action.

xps13 ~ $ cat /etc/acpi/events/tabletmode 
event=video/tabletmode
action=/etc/acpi/actions/tabletmode.sh %e

xps13 ~ $ cat /etc/acpi/actions/tabletmode.sh
#/bin/sh

# 4th params gives tablet status
# 00000001 entering tablet mode
# 00000000 exiting tablet mode

if [ "$4" = "00000001" ]; then
	sudo -iu lab /usr/bin/onboard &
elif [ "$4" = "00000000" ]; then
	pid=$(ps ax | awk '/usr\/bin\/onboard/ { print $1 }') && kill $pid
fi

Now I just need to find out to dynamically pass the $USER to the script.

rnalrd

Here you go the full script:

#!/bin/sh

# 4th params gives tablet status
# 00000001 entering tablet mode
# 00000000 exiting tablet mode

display=$(ls /tmp/.X11-unix/* | sed 's#/tmp/.X11-unix/X##' | head -n 1)
user=$(who | awk "/$display/"'{ print $1}')

if [ "$4" = "00000001" ]; then
	sudo -iu $user /usr/bin/onboard &
elif [ "$4" = "00000000" ]; then
	pid=$(ps ax | awk '/usr\/bin\/onboard/ { print $1 }') && kill $pid
fi