#20287 was wrong.
Y Axis was only reversed on Arch Linux because of a problem with iio-sensor-proxy
This restores before the patch.
sensor:modalias:acpi:KIOX000A*:dmi:*:svnTREKSTOR*:pnPrimetabS11B:*
sensor:modalias:acpi:KIOX000A*:dmi:*:svnTREKSTOR:pnPrimetabT13B:*
sensor:modalias:acpi:BOSC0200*:dmi:*:svnTrekStor*:pnSurfTabtwin11.6:*
-sensor:modalias:acpi:BOSC0200*:dmi:*:svnTrekStor*:pnSurfTabduoW110.1(VT4):*
ACCEL_MOUNT_MATRIX=1, 0, 0; 0, -1, 0; 0, 0, 1
# alternative version of Trekstor's SurfTab Twin 11.6