https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228668
Bug ID: 228668
Summary: [psm] Alps GlidePoint on HP EliteBook 1040 G3: No two
finger scroll
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: n...@neelc.org
Created attachment 193905
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=193905&action=edit
HP EliteBook 1040 G3 psm snippets
I just got a HP EliteBook 1040 G3 to replace an older 1040 G1, and am not able
to do two finger scroll. I tried this with enabling Synaptics and Elantech
support in /boot/loader.conf, and tried both with and without moused. If I put
two fingers on the touchpad, the cursor does not move, but the page does not
scroll.
Unlike the 1040 G1 or G2 which used a Synaptics "ForcePad" (pressure sensitive
touchpad like Apple's "Force Touch"), the 1040 G3 uses a ClickPad, but one
backed by an Alps GlidePoint instead of Synaptics or Elantech. Looking at
psm.c, I did not see any code for two finger scrolling on Alps touchpads (It
seems Dell Latitudes and E-series ThinkPads also use GlidePoints, and both
**probably** have this issue).
There is an Hackintosh touchpad driver which seems interesting:
https://github.com/RehabMan/OS-X-Voodoo-PS2-Controller
They even have a driver for multiple trackpads, including Alps units:
https://github.com/RehabMan/OS-X-Voodoo-PS2-Controller/tree/master/VoodooPS2Trackpad
(maybe at the files VoodooPS2ALPSGlidePoint.cpp and VoodooPS2ALPSGlidePoint.h?)
I have attached psm snippets, and will attach my full dmesg log.
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