Touchpad not working on PowerBook G4 12"

[Jason Bacon]

Not sure if this situation even shares any code with x86, but if you're 
getting mouse function in a VT but not X11:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251149

Another possibility is software cursor, which I usually use to dodge 
regressions that occasionally come with xorg updates.

FreeBSD coral.acadix  bacon ~ 1003: more 
/etc/X11/xorg.conf.d/20-swcursor.conf
Section "Device"
     Identifier "Device0"
     Option "SWCursor" "on"
EndSection

I'd be interested in some feedback on sysutils/desktop-installer on the 
g4.  I've tested it on an iMac G5 and a PowerMac G5.

Regards,

     JB

On 11/23/20 2:03 PM, Nathan Whitehorn wrote:
> Try adding moused_enable="YES" and moused_port="/dev/ams0" to 
> /etc/rc.conf?
> -Nathan
>
> On 11/23/20 2:46 PM, Omar Willey wrote:
>> On Nov 21, 2020, at 4:00 AM, Brandon Bergren <bdragon at FreeBSD.org> 
>> wrote:
>>>
>>> On Thu, Nov 19, 2020, at 1:30 AM, Omar Willey wrote:
>>>> Hi,
>>>>
>>>> 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
>>> 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.
>>>>
>>>> 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.
>>> 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...
>>
>>>> dmesg says:
>>>>
>>>> ams0: <ADB Mouse> at device 3 on adb0
>>>> ams0: ADB Mouse = 0xd (Extended Mode)
>>>> ams0: 2-button 400-dpi Touchpad
>>> 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=“/dev/atp0” and 
>> reverting to default, I see the touchpad is at /dev/ams0 but not 
>> doing anything. I’ve 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="X.Org Foundation"
>> [    49.943]     compiled for 1.20.9, module version = 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”
>>>     Driver           "adb"
>>>     Option          "Protocol" "SysMouse"
>>>     Option          "Device" "/dev/sysmouse”
>>> EndSection
>> But still nothing.
>>
>> Where should I look for the next step? Something in sysctl.conf?
>>
>> —Omar
>>
>>>   Brandon Bergren
>>>   bdragon at FreeBSD.org
>>>
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