[ltp] x201t hotkey_tablet_mode palm rejection broken

Henrique de Moraes Holschuh linux-thinkpad@linux-thinkpad.org
Sat, 6 Feb 2016 13:00:15 -0200

On Wed, 03 Feb 2016, Matthias Schlaipfer wrote:
> I noticed that when I convert my x201t into a tablet, the palm rejection
> fails. If I leave it in normal mode, the touch screen, and especially pen
> input, works perfectly.
> I tracked it down to hotkey_tablet_mode in
> /sys/devices/platform/thinkpad_acpi going from 0 to 1, when I convert into
> a tablet.
> Does anyone know how to fix this, or at least ignore the hotkey_tablet_mode
> event?

Can you please explain the full chain of events that leads from
hotkey_tablet_mode changing to 1 (which is correct) to the malfunction of
the plalm rejection feature?

Also, what distro?  What userspace utilities are involved (and their

  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh