I have a laptop with a touch screen and a new installation of 17.10.
For the most part the touch screen is supported ok. I can move around most windows ok, I can zoom in the pdf viewer with a two-finger-pinch gesture. However, firefox has a differently looking toolbar and I can neither move the window, nor does it react to tapping the minimise/maximise/close buttons.
I assume that I am running wayland by looking at these variables:
echo $WAYLAND_DISPLAY $XDG_SESSION_DESKTOP $XDG_SESSION_TYPE
wayland-0 ubuntu wayland
---
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0c: peter 10998 F...m pulseaudio
/dev/snd/controlC0: peter 10998 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 17.10
HibernationDevice: RESUME=UUID=f1546bcb-f4e8-4393-a32e-0f014e1e9bd3
InstallationDate: Installed on 2017-10-29 (0 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
MachineType: HP HP Pavilion x2 Detachable
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic.efi.signed root=UUID=e11fcd52-994f-4f5f-814f-f95ea37ccc46 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
RelatedPackageVersions:
linux-restricted-modules-4.13.0-16-generic N/A
linux-backports-modules-4.13.0-16-generic N/A
linux-firmware 1.169
Tags: artful wayland-session
Uname: Linux 4.13.0-16-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 03/14/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F.13
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 8181
dmi.board.vendor: HP
dmi.board.version: 42.25
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF.13:bd03/14/2016:svnHP:pnHPPavilionx2Detachable:pvr:rvnHP:rn8181:rvr42.25:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV G=N L=CON B=HP S=SPT
dmi.product.name: HP Pavilion x2 Detachable
dmi.sys.vendor: HP
steps to reproduce
start Gnome on Wayland session from GDM login manager
open any gtk2 (gimp), qt4 (vlc player) or qt5 (qupzilla or smplayer) app
use touchscreen to drag or close the app window
nothing happens, touchscreen does no effect on window title bar
This problem does not happen with gtk3 apps running under Wayland.
Tested on Antergos (Arch-based).