Arch Linux

Description:

The hardware click on my touchpad (Dell XPS 13 9333 developer edition) no longer works on this kernel (4.11.3-1). Tap to click still works but physically clicking the touchpad no longer works.
If I downgrade to the linux-lts kernel (4.9.30-1-lts) the touchpad click starts working again.

I tried switching from libinput to the older synaptics X org driver and the problem is the same. The libinput-debug-events (or xev) program shows that physically clicking the touchpad does not register at all.

I am using gdm and GNOME shell for my desktop. The problem is the same under GNOME Wayland or GNOME Xorg.

Between the kernels something I noticed is that touchpad names appear different

In 4.9.30-1-lts the device name is "DLL060A:00 06CB:2734"
In 4.11.3-1 the device name is "Synaptics s3203"

Here is what libinput-list-devices shows.

In kernel 4.9.30-1-lts

```
Device: DLL060A:00 06CB:2734
Kernel: /dev/input/event14
Group: 8
Seat: seat0, default
Size: 99x60mm
Capabilities: pointer
Tap-to-click: disabled
Tap-and-drag: enabled
Tap drag lock: disabled
Left-handed: disabled
Nat.scrolling: disabled
Middle emulation: disabled
Calibration: n/a
Scroll methods: *two-finger edge
Click methods: *button-areas clickfinger
Disable-w-typing: enabled
Accel profiles: none
Rotation: n/a
```

In kernel 4.11.3-1

```
Device: Synaptics s3203
Kernel: /dev/input/event14
Group: 8
Seat: seat0, default
Size: 97x59mm
Capabilities: pointer
Tap-to-click: enabled
Tap-and-drag: enabled
Tap drag lock: disabled
Left-handed: disabled
Nat.scrolling: disabled
Middle emulation: n/a
Calibration: n/a
Scroll methods: *two-finger edge
Click methods: none
Disable-w-typing: enabled
Accel profiles: none
Rotation: n/a
```

Note that under "Click methods" nothing is listed under 4.11.3-1 which is wrong.

Additional info:
* linux 4.11.3-1
* xf86-input-libinput 0.25.1-1
* libinput 1.7.2-1
* gnome-shell 3.24.2-1