Hello,
I bought a new labtop dell 5481 installed netrunner 2019.04 rolling release. After initial install I activated tapping from setting -> input devices -> touchpad. After upgrade of all system via octopi, tapping is no longer working. Some of the debugging command output are below. As far as I understood, there are more buses or touchpad devices. Synaptic vs. dell. Help much appreciated.
xinput --list command output is below
| ⎡ Virtual core pointer | id=2 | [master pointer (3)] |
|---|---|---|
| ⎜ ↳ Virtual core XTEST pointer | id=4 | [slave pointer (2)] |
| ⎜ ↳ DELL08A7:00 06CB:CCA6 Touchpad | id=10 | [slave pointer (2)] |
| ⎜ ↳ SynPS/2 Synaptics TouchPad | id=15 | [slave pointer (2)] |
| ⎣ Virtual core keyboard | id=3 | [master keyboard (2)] |
| ↳ Virtual core XTEST keyboard | id=5 | [slave keyboard (3)] |
| ↳ Video Bus | id=6 | [slave keyboard (3)] |
| ↳ Power Button | id=7 | [slave keyboard (3)] |
| ↳ Sleep Button | id=8 | [slave keyboard (3)] |
| ↳ Integrated_Webcam_HD: Integrate | id=9 | [slave keyboard (3)] |
| ↳ Intel HID events | id=11 | [slave keyboard (3)] |
| ↳ Intel HID 5 button array | id=12 | [slave keyboard (3)] |
| ↳ Dell WMI hotkeys | id=13 | [slave keyboard (3)] |
| ↳ AT Translated Set 2 keyboard | id=14 | [slave keyboard (3)] |
The output of the "grep -e /input/ -e i2c is below
[ 0.894641] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input0
[ 0.894674] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1
[ 0.894716] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input2
[ 1.592820] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input3
[ 2.869049] input: Intel HID events as /devices/platform/INT33D5:00/input/input5
[ 2.869223] input: Intel HID 5 button array as /devices/platform/INT33D5:00/input/input6
[ 2.950467] input: PC Speaker as /devices/platform/pcspkr/input/input7
[ 3.101597] input: Dell WMI hotkeys as /devices/platform/PNP0C14:02/wmi_bus/wmi_bus-PNP0C14:02/9DBB5994-A997-11DA-B012-B622A1EF5492/input/input9
[ 3.741807] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input10
[ 3.852940] psmouse serio1: synaptics: Your touchpad (PNP: DLL08a7 PNP0f13) says it can support a different bus. If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to linux-input@vger.kernel.org.
[ 3.912413] input: Integrated_Webcam_HD: Integrate as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input12
[ 3.953165] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input8
[ 3.972551] i2c_hid i2c-DELL08A7:00: i2c-DELL08A7:00 supply vdd not found, using dummy regulator
[ 3.972567] i2c_hid i2c-DELL08A7:00: Linked as a consumer to regulator.0
[ 3.972568] i2c_hid i2c-DELL08A7:00: i2c-DELL08A7:00 supply vddl not found, using dummy regulator
[ 4.003272] input: DELL08A7:00 06CB:CCA6 Mouse as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-7/i2c-DELL08A7:00/0018:06CB:CCA6.0007/input/input13
[ 4.003485] input: DELL08A7:00 06CB:CCA6 Touchpad as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-7/i2c-DELL08A7:00/0018:06CB:CCA6.0007/input/input14
[ 4.004113] hid-generic 0018:06CB:CCA6.0007: input,hidraw1: I2C HID v1.00 Mouse [DELL08A7:00 06CB:CCA6] on i2c-DELL08A7:00
[ 4.590259] input: DELL08A7:00 06CB:CCA6 Touchpad as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-7/i2c-DELL08A7:00/0018:06CB:CCA6.0007/input/input23
[ 4.590453] hid-multitouch 0018:06CB:CCA6.0007: input,hidraw1: I2C HID v1.00 Mouse [DELL08A7:00 06CB:CCA6] on i2c-DELL08A7:00