Hi,

I run Chimaera Devuan on Thinkpad T580. Periodically, about once a day, the
touchpad stops responding to all actions. It doesn't scroll or move the
pointer. During these blackouts dmesg doesn't display any messages and I
still can use the trackpoint. After a short period of time, around 1
minute, the touchpad becomes active again.

I would be grateful for any ideas that might help solve the issue.

'xinput list-props 12' produces the following output:

---------------------------------------------------------------------------
Device 'Synaptics TM3276-031':
       Device Enabled (184):   1
       Coordinate Transformation Matrix (186): 1.000000, 0.000000,
0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
       libinput Tapping Enabled (320): 0
       libinput Tapping Enabled Default (321): 0
       libinput Tapping Drag Enabled (322):    1
       libinput Tapping Drag Enabled Default (323):    1
       libinput Tapping Drag Lock Enabled (324):       0
       libinput Tapping Drag Lock Enabled Default (325):       0
       libinput Tapping Button Mapping Enabled (326):  1, 0
       libinput Tapping Button Mapping Default (327):  1, 0
       libinput Natural Scrolling Enabled (328):       0
       libinput Natural Scrolling Enabled Default (329):       0
       libinput Disable While Typing Enabled (330):    1
       libinput Disable While Typing Enabled Default (331):    1
       libinput Scroll Methods Available (332):        1, 1, 0
       libinput Scroll Method Enabled (333):   1, 0, 0
       libinput Scroll Method Enabled Default (334):   1, 0, 0
       libinput Click Methods Available (335): 1, 1
       libinput Click Method Enabled (336):    1, 0
       libinput Click Method Enabled Default (337):    1, 0
       libinput Middle Emulation Enabled (338):        0
       libinput Middle Emulation Enabled Default (339):        0
       libinput Accel Speed (340):     0.000000
       libinput Accel Speed Default (341):     0.000000
       libinput Accel Profiles Available (342):        1, 1
       libinput Accel Profile Enabled (343):   1, 0
       libinput Accel Profile Enabled Default (344):   1, 0
       libinput Left Handed Enabled (345):     0
       libinput Left Handed Enabled Default (346):     0
       libinput Send Events Modes Available (305):     1, 1
       libinput Send Events Mode Enabled (306):        0, 0
       libinput Send Events Mode Enabled Default (307):        0, 0
       Device Node (308):      "/dev/input/event8"
       Device Product ID (309):        1739, 0
       libinput Drag Lock Buttons (347):       <no items>
       libinput Horizontal Scroll Enabled (348):       1
---------------------------------------------------------------------------

--
With best regards,
Dimitri Minaev