Hi,
So, it occurs that the balanced slots assignment introduced in v4.0 had some
troubles and the Synaptics part was reverted.
I tried to spend some time today to figure out a solution, and the only way
I can get something from it is to add a band aid in input_mt_set_slots().
It should not be very costly, but I think it is required: I can guarantee that
the path is hit if the band aid is not here (pr_err was my friend).
So the series is:
- band aid
- revert the revert
- small fix in synaptics.c to keep the slots stable when landing a third finger.
Cheers,
Benjamin