Dell Precision 7520 laptop: built-in mouse "fail"; USB mouse OK

[Vladimir Kondratyev]

On 2018-03-18 02:20, David Wolfskill wrote:
> On Sun, Mar 18, 2018 at 02:02:39AM +0300, Vladimir Kondratyev wrote:
>> It's probably that your laptop has an ALPS touchpad:
>> https://www.driveridentifier.com/scan/dell-inc-precision-7520-precision-sku07b0/desktop/F70B463F27B0466AA190E50F67469F64
> 
> Hmm...  interesting page -- but I see some entries that are
> definitely different from the machine I have, including:
> 
> * NVIDIA graphics in my machine is a "Quadro M1200" (vs. "Quadro 
> M2200")
> * Wireless NIC is a Qualcomm Atheros part (vs. Intel(R) Dual Band
>   Wireless-AC 8265")

Try to boot any modern Linux live cd and than grep boot log for "PS/2" 
string. It should give a clue to your trackpad model name.

>> Unfortunately it is not supported by FreeBSD.
>> 
>> I think the best you can do is to remove outdated "ALPS GlidePoint" 
>> from
>> psm's driver probe list and play around hint.psm.0.flags in
>> /boot/device.hints
> 
> I'm confused: why would you refer to "ALPS GlidePoint" as "outdated"?

Something that called "ALPS GlidePoint" support in current FreeBSD 
really does a button remap for 20 years old particular model rather then 
absolute mode activation and packet parsing as it should do.
Moreover, there is a report that it just hurts: 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=218347


-- 
WBR
Vladimir Kondratyev