On Rhino Linux with GNOME 46.2 this was set to true when I found it, I toggled it, etc., but it still allows touchpad input regardless of true/false setting.
I’m not sure I can continue to use this install if I can’t figure out how to enforce a true setting.
$ gsettings get org.gnome.desktop.peripherals.touchpad disable-while-typing
true
$ xinput list; hr; xinput list-props 13; hr; xinput list-props 14
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Wacom HID 4840 Pen stylus id=10 [slave pointer (2)]
⎜ ↳ Wacom HID 4840 Finger touch id=11 [slave pointer (2)]
⎜ ↳ DELL0823:00 044E:120A Mouse id=12 [slave pointer (2)]
⎜ ↳ DELL0823:00 044E:120A Touchpad id=13 [slave pointer (2)]
⎜ ↳ Wacom HID 4840 Pen eraser id=20 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Sleep Button id=9 [slave keyboard (3)]
↳ DELL0823:00 044E:120A UNKNOWN id=14 [slave keyboard (3)]
↳ Intel Virtual Buttons id=15 [slave keyboard (3)]
↳ Intel HID events id=16 [slave keyboard (3)]
↳ Intel HID 5 button array id=17 [slave keyboard (3)]
↳ Dell WMI hotkeys id=18 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=19 [slave keyboard (3)]
↳ JBL Xtreme 2 (AVRCP) id=21 [slave keyboard (3)]
################################################################################################
Device 'DELL0823:00 044E:120A Touchpad':
Device Enabled (188): 1
Coordinate Transformation Matrix (190): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (308): 1
Device Accel Constant Deceleration (309): 2.500000
Device Accel Adaptive Deceleration (310): 1.000000
Device Accel Velocity Scaling (311): 12.500000
Synaptics Edges (376): 43, 1036, 31, 556
Synaptics Finger (377): 25, 30, 0
Synaptics Tap Time (378): 180
Synaptics Tap Move (379): 54
Synaptics Tap Durations (380): 180, 180, 100
Synaptics ClickPad (381): 0
Synaptics Middle Button Timeout (382): 75
Synaptics Two-Finger Pressure (383): 282
Synaptics Two-Finger Width (384): 7
Synaptics Scrolling Distance (385): 24, 24
Synaptics Edge Scrolling (386): 1, 0, 0
Synaptics Two-Finger Scrolling (387): 1, 0
Synaptics Move Speed (388): 1.000000, 1.750000, 0.162866, 0.000000
Synaptics Off (389): 0
Synaptics Locked Drags (390): 0
Synaptics Locked Drags Timeout (391): 5000
Synaptics Tap Action (392): 2, 3, 0, 0, 1, 3, 0
Synaptics Click Action (393): 1, 1, 0
Synaptics Circular Scrolling (394): 0
Synaptics Circular Scrolling Distance (395): 0.100000
Synaptics Circular Scrolling Trigger (396): 0
Synaptics Circular Pad (397): 0
Synaptics Palm Detection (398): 0
Synaptics Palm Dimensions (399): 10, 200
Synaptics Coasting Speed (400): 20.000000, 50.000000
Synaptics Pressure Motion (401): 30, 160
Synaptics Pressure Motion Factor (402): 1.000000, 1.000000
Synaptics Resolution Detect (403): 1
Synaptics Grab Event Device (404): 0
Synaptics Gestures (405): 1
Synaptics Capabilities (406): 1, 0, 1, 1, 1, 0, 0
Synaptics Pad Resolution (407): 12, 12
Synaptics Area (408): 0, 0, 0, 0
Synaptics Noise Cancellation (409): 6, 6
Device Product ID (306): 1102, 4618
Device Node (305): "/dev/input/event6"
################################################################################################
Device 'DELL0823:00 044E:120A UNKNOWN':
Device Enabled (188): 1
Coordinate Transformation Matrix (190): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
libinput Rotation Angle (300): 0.000000
libinput Rotation Angle Default (301): 0.000000
libinput Send Events Modes Available (302): 1, 0
libinput Send Events Mode Enabled (303): 0, 0
libinput Send Events Mode Enabled Default (304): 0, 0
Device Node (305): "/dev/input/event7"
Device Product ID (306): 1102, 4618
I’ve tried removing xserver-xorg-input-synaptics and after a reboot the touchpad works on the login screen, but once I log in, the touchpad is not recognized.
I think at this point, maybe what I’m looking for is how to replace the synaptics (which was not installed on ubuntu 22.04) with libinput.
$ dpkg --list |grep xserver-xorg-input
ii xserver-xorg-input-all 1:7.7+23ubuntu3 amd64 X.Org X server -- input driver metapackage
ii xserver-xorg-input-libinput 1.4.0-1build1 amd64 X.Org X server -- libinput input driver
ii xserver-xorg-input-multitouch 1.0~rc3-2.1 amd64 Multitouch X input driver
ii xserver-xorg-input-synaptics 1.9.2-1ubuntu3 amd64 Synaptics TouchPad driver for X.Org server
ii xserver-xorg-input-wacom 1:1.2.0-1ubuntu2 amd64 X.Org X server -- Wacom input driver