GNU bug report logs - #35574
bcm5974 touchpad is not recognized as touchpad

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: "pelzflorian (Florian Pelz)" <pelzflorian <at> pelzflorian.de>
Subject: bug#35574: closed (Re: bug#35574: bcm5974 touchpad is not
 recognized as touchpad)
Date: Fri, 01 May 2020 09:16:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#35574: bcm5974 touchpad is not recognized as touchpad

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 35574 <at> debbugs.gnu.org.

-- 
35574: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=35574
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: "pelzflorian (Florian Pelz)" <pelzflorian <at> pelzflorian.de>
To: 35574-done <at> debbugs.gnu.org
Subject: Re: bug#35574: bcm5974 touchpad is not recognized as touchpad
Date: Fri, 1 May 2020 11:15:47 +0200

Pushed as e06664da02a829c7fa8fd084aac47c837451d57a.  Closing.

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From: "pelzflorian (Florian Pelz)" <pelzflorian <at> pelzflorian.de>
To: bug-guix <at> gnu.org
Subject: bcm5974 touchpad is not recognized as touchpad
Date: Sun, 5 May 2019 08:54:11 +0200

On *some* reboots my Macbook’s touchpad does not work properly; it
behaves like mouse wheel, I can only scroll.  Only when I press it
down, I can move the pointer to the right, but never to the left.

This happens both with synaptics and libinput driver.

Restarting xorg-server does not help; this appears to be an issue with
the order in which udev rules are applied.

Apparently my bcm5974 touchpad is recognized by udev as a mouse
sometimes (?), because when diffing /var/log/gdm/greeter.log I see a
mouse being recognized (it is never called bcm5974) instead of a
bcm5974 touchpad.

$ sudo diff /var/log/gdm/greeter.log.1 /var/log/gdm/greeter.log.2
[…]
381,387c381,387
< (II) config/udev: Adding input device Apple Inc. Apple Internal Keyboard / Trackpad (/dev/input/event14)
< (**) Apple Inc. Apple Internal Keyboard / Trackpad: Applying InputClass "evdev pointer catchall"
< (**) Apple Inc. Apple Internal Keyboard / Trackpad: Applying InputClass "libinput pointer catchall"
< (II) Using input driver 'libinput' for 'Apple Inc. Apple Internal Keyboard / Trackpad'
< (II) systemd-logind: got fd for /dev/input/event14 13:78 fd 32 paused 0
< (**) Apple Inc. Apple Internal Keyboard / Trackpad: always reports core events
< (**) Option "Device" "/dev/input/event14"
---
> (II) config/udev: Adding input device bcm5974 (/dev/input/event12)
> (**) bcm5974: Applying InputClass "evdev touchpad catchall"
> (**) bcm5974: Applying InputClass "libinput touchpad catchall"
> (II) Using input driver 'libinput' for 'bcm5974'
> (II) systemd-logind: got fd for /dev/input/event12 13:76 fd 32 paused 0
> (**) bcm5974: always reports core events
> (**) Option "Device" "/dev/input/event12"
389,393c389,393
< (II) event14 - Apple Inc. Apple Internal Keyboard / Trackpad: is tagged by udev as: Mouse
< (II) event14 - Apple Inc. Apple Internal Keyboard / Trackpad: device is a pointer
< (II) event14 - Apple Inc. Apple Internal Keyboard / Trackpad: device removed
< (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:06.0/usb4/4-3/4-3:1.2/input/input14/event14"
< (II) XINPUT: Adding extended input device "Apple Inc. Apple Internal Keyboard / Trackpad" (type: MOUSE, id 12)
---
> (II) event12 - bcm5974: is tagged by udev as: Touchpad
> (II) event12 - bcm5974: device is a touchpad
> (II) event12 - bcm5974: device removed
> (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:06.0/usb4/4-3/4-3:1.2/input/input12/event12"
> (II) XINPUT: Adding extended input device "bcm5974" (type: TOUCHPAD, id 12)
395,400c395,400
< (**) Apple Inc. Apple Internal Keyboard / Trackpad: (accel) selected scheme none/0
< (**) Apple Inc. Apple Internal Keyboard / Trackpad: (accel) acceleration factor: 2.000
< (**) Apple Inc. Apple Internal Keyboard / Trackpad: (accel) acceleration threshold: 4
< (II) event14 - Apple Inc. Apple Internal Keyboard / Trackpad: is tagged by udev as: Mouse
< (II) event14 - Apple Inc. Apple Internal Keyboard / Trackpad: device is a pointer
< (II) config/udev: Adding input device Apple Inc. Apple Internal Keyboard / Trackpad (/dev/input/mouse1)
---
> (**) bcm5974: (accel) selected scheme none/0
> (**) bcm5974: (accel) acceleration factor: 2.000
> (**) bcm5974: (accel) acceleration threshold: 4
> (II) event12 - bcm5974: is tagged by udev as: Touchpad
> (II) event12 - bcm5974: device is a touchpad
> (II) config/udev: Adding input device bcm5974 (/dev/input/mouse0)
[…]

Regards,
Florian

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