Comment 15 for bug 1629613

With a little spare time I've been checking what happens in logs while I run `evtest` as per above instruction: `/var/log/dmesg` and `/var/log/Xorg.0.log` - as grepping showed they both reference "SynPS/2 Synaptics TouchPad".

dmesg log was not updating after boot, but I noticed something in Xorg.0.log, which I attach below. Here's the breakdown of the final few lines, that happened while I was checking `less /proc/bus/input/devices` and `evtest`. So here it is:

First of ALT+CTRL+F2, as I switch to virtual terminal, I get this:

[ 47.820] (II) AIGLX: Suspending AIGLX clients for VT switch

I assume nothing unusual and proceed to run `less /proc/bus/input/devices` - observe the device `event5` in the list, that is the TouchPad (as per above comment).

I run `sudo evtest /dev/input/event5` and start swiping and clicking the touchpad - nothing yet happens. After a little bit - curiosity kills and ALT+CTRL+F7 - I go check the terminal app that's tailing log files. I notice this:

[ 86.672] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 86.672] (II) intel(0): switch to mode 1920x1080@60.0 on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[ 86.744] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 92.560] (II) AIGLX: Suspending AIGLX clients for VT switch

Switch back to virtual terminal where `evtest` is still running - I continue swiping and clicking touchpad. No events come through. One more come back to X:

[ 106.959] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 106.959] (II) intel(0): switch to mode 1920x1080@60.0 on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[ 107.028] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 113.552] (II) AIGLX: Suspending AIGLX clients for VT switch

And back - still no events. I continue the procedure of clicking, touching and swiping. Eventually - the events start coming in. I CTRL+C `evtest`, log out from VT and come back to X:

[ 174.700] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 174.700] (II) intel(0): switch to mode 1920x1080@60.0 on eDP1 using pipe 0, position (0, 0), rotation normal, reflection none
[ 174.760] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found

The touchpad sure works and I can move the pointer.

Any advice/ideas where to look next - welcome & could look at it next time I have spare time.