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Date:      Mon, 23 Nov 2020 11:46:36 -0800
From:      Omar Willey <owilley@gmail.com>
To:        freebsd-ppc@freebsd.org
Subject:   Re: Touchpad not working on PowerBook G4 12"
Message-ID:  <72EE0C64-301B-4B59-BB84-1B55B1D6B0E3@gmail.com>
In-Reply-To: <mailman.79.1605960001.90586.freebsd-ppc@freebsd.org>
References:  <mailman.79.1605960001.90586.freebsd-ppc@freebsd.org>

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On Nov 21, 2020, at 4:00 AM, Brandon Bergren <bdragon@FreeBSD.org> =
wrote:
>=20
>=20
> On Thu, Nov 19, 2020, at 1:30 AM, Omar Willey wrote:
>> Hi,
>>=20
>> I'm coming back to FreeBSD after a long, long absence and I've made =
it a
>> project to revive this PowerBook g4 aluminum 12" 640MB/867gHz with =
FreeBSD
>> 12.2
>=20
> Do you have the specific model number handy?

Yes, this is a PowerBook 6,1 Model A1010/1931, or M8760LL/A if you =
prefer. PowerPC 7455 processor with the NVIDIA GeForce4 420 Go video =
card. I already had to struggle with the rubbish Nvidia graphics, and =
created a /usr/local/etc/X11/xorg.conf.d/driver-nvidia.conf just to get =
X11 visible.

>> I've managed to get X working with a window manager and file manager =
for a
>> minimal desktop but I cannot get the touchpad to work in X at all.
>>=20
>> I first tried loading the wsp(4) driver as a module in =
/boot/loader.conf,
>> then tried the older atp(4) separately, but the device isn't binding =
to
>> /dev/atp0.
>=20
> These are for trackpads connected over internal USB, which were only =
on later PowerBook G4s and newer machines. Given the specs you listed I =
think it's likely that yours is one of the older ones that predate this =
type of touchpad

Ah, yes. It is certainly an ADB touchpad. Leading to the next =
question...=20

>> dmesg says:
>>=20
>> ams0: <ADB Mouse> at device 3 on adb0
>> ams0: ADB Mouse =3D 0xd (Extended Mode)
>> ams0: 2-button 400-dpi Touchpad
>=20
> This is an ADB attachment, not a USB attachment. This implies that =
that your touchpad is at /dev/ams0.

I thought so, too. After removing moused_port=3D=E2=80=9C/dev/atp0=E2=80=9D=
 and reverting to default, I see the touchpad is at /dev/ams0 but not =
doing anything. I=E2=80=99ve rebuilt the kernel to ensure the old adb =
driver is present. Xorg.0.log tells me:

[    48.939] (II) config/udev: Adding input device System mouse =
(/dev/input/event0)
[    48.940] (**) System mouse: Applying InputClass "libinput pointer =
catchall"
[    48.940] (II) LoadModule: "libinput"
[    48.943] (II) Loading =
/usr/local/lib/xorg/modules/input/libinput_drv.so
[    49.943] (II) Module libinput: vendor=3D"X.Org Foundation"
[    49.943] 	compiled for 1.20.9, module version =3D 0.30.0
[    49.943] 	Module class: X.Org XInput Driver
[    49.943] 	ABI class: X.Org XInput driver, version 24.1
[    49.944] (II) Using input driver 'libinput' for 'System mouse'
[    49.944] (**) System mouse: always reports core events
[    49.944] (**) Option "Device" "/dev/input/event0"
[    49.946] (**) Option "_source" "server/udev"
[    50.105] (II) event0  - System mouse: is tagged by udev as: Mouse
[    50.109] (II) event0  - System mouse: device is a pointer
[    50.113] (II) event0  - System mouse: device removed
[    50.117] (**) Option "config_info" "udev:/dev/input/event0"
[    50.118] (II) XINPUT: Adding extended input device "System mouse" =
(type: MOUSE, id 6)
[    50.122] (**) Option "AccelerationScheme" "none"
[    50.122] (**) System mouse: (accel) selected scheme none/0
[    50.122] (**) System mouse: (accel) acceleration factor: 2.000
[    50.122] (**) System mouse: (accel) acceleration threshold: 4
[    50.136] (II) event0  - System mouse: is tagged by udev as: Mouse
[    50.139] (II) event0  - System mouse: device is a pointer

But still no mouse activity.

Then I added a simple mouse.conf to /usr/local/etc/X11/xorg.conf.d using =
libinput as the driver, but that simply gave me a black screen. I tried =
it again with the advice from Ch 11 of the FreeBSD FAQ.

> Section "InputDevice"
>    Identifier	"Mouse0=E2=80=9D
>    Driver           "adb"
>    Option          "Protocol" "SysMouse"
>    Option          "Device" "/dev/sysmouse=E2=80=9D
> EndSection

But still nothing.

Where should I look for the next step? Something in sysctl.conf?

=E2=80=94Omar

>  Brandon Bergren
>  bdragon@FreeBSD.org
>=20




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