Xorg not using Mtrack

[jrussell88]

I installed the xserver-xorg-input-mtrack_0.4.1_amd64.deb package on my Ubuntu 16.10 x64 Macbook Retina Pro (MacBookPro11,2) and added a section to /usr/share/X11/xorg.conf.d/50-synaptics.conf.

This didn't change the behaviour of the touchpad.

As Xorg is running in rootless mode I added myself to the Input group.

/var/log/Xorg.0.log refers to InputClass evdev rather than Mtrack:

[    12.080] (II) config/udev: Adding input device bcm5974 (/dev/input/event11)
[    12.080] (**) bcm5974: Applying InputClass "evdev touchpad catchall"
[    12.080] (**) bcm5974: Applying InputClass "touchpad catchall"
[    12.080] (**) bcm5974: Applying InputClass "Default clickpad buttons"
[    12.080] (**) bcm5974: Applying InputClass "Disable clickpad buttons on Apple touchpads"
[    12.080] (**) bcm5974: Applying InputClass "Touchpads"
[    12.080] (**) bcm5974: Applying InputClass "libinput touchpad catchall"
[    12.080] (II) Using input driver 'libinput' for 'bcm5974'
[    12.080] (**) bcm5974: always reports core events
[    12.080] (**) Option "Device" "/dev/input/event11"
[    12.080] (**) Option "_source" "server/udev"
[    12.081] (II) input device 'bcm5974', /dev/input/event11 is tagged by udev as: Touchpad
[    12.081] (II) input device 'bcm5974', /dev/input/event11 is a touchpad
[    12.128] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb1/1-12/1-12:1.2/input/input14/event11"
[    12.128] (II) XINPUT: Adding extended input device "bcm5974" (type: TOUCHPAD, id 14)
[    12.128] (**) Option "AccelerationScheme" "none"
[    12.128] (**) bcm5974: (accel) selected scheme none/0
[    12.128] (**) bcm5974: (accel) acceleration factor: 2.000
[    12.128] (**) bcm5974: (accel) acceleration threshold: 4
[    12.129] (II) input device 'bcm5974', /dev/input/event11 is tagged by udev as: Touchpad
[    12.129] (II) input device 'bcm5974', /dev/input/event11 is a touchpad
[    12.129] (II) config/udev: Adding input device bcm5974 (/dev/input/mouse2)
[    12.129] (**) bcm5974: Ignoring device from InputClass "touchpad ignore duplicates"

/usr/share/X11/xorg.conf.d/11-evdev-trackpoint.conf reads:

# trackpoint users want wheel emulation

Section "InputClass"
	Identifier	"trackpoint catchall"
	MatchIsPointer	"true"
	MatchProduct	"TrackPoint|DualPoint Stick"
	MatchDevicePath	"/dev/input/event*"
	Option	"Emulate3Buttons"	"true"
	Option	"EmulateWheel"	"true"
	Option	"EmulateWheelButton"	"2"
	Option	"XAxisMapping"	"6 7"
	Option	"YAxisMapping"	"4 5"
EndSection

What should I do to ensure that Mtrack settings are used rather than the generic evdev settings?

[jrussell88]

10-evdev.conf contains the section which Xorg appears to be using:

Section "InputClass"
        Identifier "evdev touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
EndSection

As Xorg processes config files in ascending alphabetical order, I moved the Mtrack section from 50-synaptics.conf to a 55-mtrack.conf file:

# Match Apple bcm5974 touchpad

Section "InputClass"
	MatchIsTouchpad "on"
	Identifier "Apple touchpad"
	MatchVendor "05ac"
 	MatchProduct "Apple|bcm5974"
 	Driver "mtrack"
 
# 30-12-2016 Mtrack settings from http://yarenty.blogspot.com/2014/08/how-to-fix-macbook-pro-touchpad-on.html
 	Option "Sensitivity" "0.65"
 	Option "FingerHigh" "12"
 	Option "FingerLow" "4"
 	Option "IgnoreThumb" "true"
 	Option "IgnorePalm" "true"
 	Option "TapButton1" "0"
 	Option "TapButton2" "0"
 	Option "TapButton3" "0"
 	Option "TapButton4" "0"
 	Option "ClickFinger1" "3"
 	Option "ClickFinger2" "2"
 	Option "ClickFinger3" "3"
 	Option "ButtonMoveEmulate" "true"
 	Option "ButtonIntegrated" "true"
 	Option "ClickTime" "25"
 	Option "BottomEdge" "40"
 	Option "SwipeLeftButton" "8"
 	Option "SwipeRightButton" "9"
 	Option "SwipeUpButton" "0"
 	Option "SwipeDownButton" "0"
 	Option "ScrollDistance" "75"
 	Option "ScrollUpButton" "4"
 	Option "ScrollDownButton" "5"
 	Option "ThumbSize" "35"
 	Option "PalmSize" "55"
 	Option "DisableOnThumb" "false"
 	Option "DisableOnPalm" "true"
 	Option "SwipeDistance" "1000"
 	Option "ScrollLeftButton" "7"
 	Option "ScrollRightButton" "6"
 	Option "AccelerationProfile" "2"
 	Option "ConstantDeceleration" "2.0" # Decelerate endspeed
 	Option "AdaptiveDeceleration" "2.0" # Decelerate slow movements
 
EndSection

I took the vendor id from lsusb:

Bus 001 Device 006: ID 05ac:0263 Apple, Inc. Apple Internal Keyboard / Trackpad (MacBook Retina)

However Xorg.0.log still refers to the libinput driver for the touchpad rather than Mtrack.

[vviikk]

I had an error in my mtrack.conf and it was falling back to libinput. I copied pasted from a blog and the line endings were messed up.

Try grepping the log with | grep ouchpad.