Description of problem:

With the update to F26, my synaptics touchpad  on my Dell XPS 13 9333 no longer works after resuming from a suspended state.

libinput-list-devices shows this:

<snip>

Device:           Synaptics s3203
Kernel:           /dev/input/event15
Group:            8
Seat:             seat0, default
Size:             97x59mm
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

<snip>

and evtest allows me to pick 15, which then spews out input as you interact with the touchpad before a suspend, but doesn't after a suspend.


Version-Release number of selected component (if applicable):

$ rpm -q libinput xorg-x11-drv-libinput
libinput-1.7.3-1.fc26.x86_64
xorg-x11-drv-libinput-0.25.1-2.fc26.x86_64


How reproducible:

Every time.

Steps to Reproduce:
1. Start the system and use the trackpad
2. Suspend and resume
3. Trackpad no longer works.


Additional info:

My synaptics based touchscreen works fine.