[Bug 249987] Lenovo X120e touchpad failing

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249987

--- Comment #18 from commit-hook at FreeBSD.org ---
A commit references this bug:

Author: wulf
Date: Wed Dec 16 07:59:48 UTC 2020
New revision: 368689
URL: https://svnweb.freebsd.org/changeset/base/368689

Log:
  MFC: r367349, r367854, r368365, r368374(by cem)

  r367349:

  atkbdc(4): Add quirk for "System76 lemur Pro" laptops.

  Currently atkbdc(4) assumes all coreboot BIOSes belonging to Chromebooks
  and unconditionally sets a number of quirks to workaround known issues.

  Exclude "System76" laptops from this set as they appeared to be a
  traditional hardware ("lemur Pro" is a rebranded Clevo chassis) with
  coreboot firmware on board. KBDC_QUIRK_KEEP_ACTIVATED quirk activated for
  Chromebook platform makes keyboard on this devices inoperable.

  "Purism Librem" laptops may require the same exclusion too.

  PR:           250711
  Reported by:  nick.lott at gmail.com

  r367854:

  psm(4): Disable AUX multiplexer probing on all Lenovo laptops.

  Rudimentary AUX multiplexing support was added to kernel to make possible
  touchpad initialization on some HP EliteBook laptops with trackpoint.

  Disable multiplexer probing on all Lenovo laptops now as they use touchpad
  pass-through port rather than AUX multiplexer to connect trackpoint and
  at least two model (X120e and X121e) is known for getting PS/2 AUX port
  dysfunctional after switching back to hidden multiplexing mode.

  AUX MUX probing can be reenabled with setting of hw.psm.mux_disabled loader
  tunable to 0.

  PR:           249987
  Reported by:  jwb

  r368365:

  atkbd(4): Change quirk table end-of-list marker to NULL vendor/maker/product

  This fixes regression introduced in r367349 which effectively resulted in
  truncation of quirk table.

  PR:           250711
  Submitted by: grembo
  Reported by:  Matthias Apitz <guru at unixarea.de>

  r368374 (by cem):

  atkbd(4): Just use nitems() for quirk enumeration

  Reviewed by:    imp, wulf
  Differential Revision:  https://reviews.freebsd.org/D27489

Changes:
_U  stable/12/
  stable/12/sys/dev/atkbdc/atkbdc.c
  stable/12/sys/dev/atkbdc/atkbdcreg.h
  stable/12/sys/dev/atkbdc/psm.c

-- 
You are receiving this mail because:
You are the assignee for the bug.