[Bug 242542] [psm] trackpoint not working, touchpad only sometimes after upgrade to 12.1-RELEASE

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242542

Vladimir Kondratyev <wulf at freebsd.org> changed:

           What    |Removed                     |Added
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--- Comment #7 from Vladimir Kondratyev <wulf at freebsd.org> ---
Created attachment 215024
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=215024&action=edit
psm.patch

> Applied it to releng/12.1 and the observable behavior is *almost* the same: touchpad and trackpoint dead on cold start, but this time, both worked fine on reboot.

Is it always broken on cold start and restores after reboot?

> Please let me know if you also need the log from cold start case when nothing worked.

I need about 30-40 lines starting from:
psm0: current command byte:0067

Try:

1. Attached patch.
2. enable_synaptics_mux() body replaced with return(FALSE);

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