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  • libinput
  • libinput
  • Issues
  • #306

Fake proximity out event on Dell BLE pen

The Dell Active Pen (I think that's what it's called) has its own timeout before it sends proximity out events. This causes a fake proximity in/out event since 9bba1499. The last event is:

  - evdev:
    - [  0, 296539,   3,   0,      0] # EV_ABS / ABS_X                     0
    - [  0, 296539,   3,   1,      0] # EV_ABS / ABS_Y                     0
    - [  0, 296539,   1, 320,      0] # EV_KEY / BTN_TOOL_PEN              0
    - [  0, 296539,   4,   0, -368834328] # EV_MSC / MSC_SERIAL           -368834328
    - [  0, 296539,   3,  40,      0] # EV_ABS / ABS_MISC                  0
    - [  0, 296539,   0,   0,      0] # ------------ SYN_REPORT (0) ---------- +209ms

libinput debug-events output:

event9  - tablet: forcing proximity after timeout
 event9   TABLET_TOOL_PROXIMITY  +4.64s		97.91/108.57	pressure: 0.00	pen (0xea0408e8, id 0x431) proximity-out 
 event9   TABLET_TOOL_PROXIMITY  +4.80s		0.00*/0.00*	pressure: 0.00*	pen (0xea0408e8, id 0x431) proximity-in 	axes:p	btn:SS2
event9  - tablet: forcing proximity after timeout
 event9   TABLET_TOOL_PROXIMITY  +4.85s		0.00/0.00	pressure: 0.00	pen (0xea0408e8, id 0x431) proximity-out 

This is a bug, libinput shouldn't treat a proximity out event as proximity in, just to trigger another proximity out event.

  • libinput recording: pen.yml

Somewhat related to #304 (closed)

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information
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