Touchscreen multitouch works in XWayland but not Xorg












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I have a Thinkpad X1 Tablet running Ubuntu 18.10. Using two fingers to scroll, zoom around, etc works great (in e.g. Chromium) when running under XWayland, but only a single touch point seems to be recognized under Xorg.



Running xinput test-xi2 <device-id> shows TouchEvent's on Wayland, but ButtonEvent's on Xorg, so it appears that my touchscreen is configured wrong and Xorg is interpreting the touchscreen as a mouse.



Any idea how to configure Xorg to view the touchscreen as, well, a touchscreen?










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    0














    I have a Thinkpad X1 Tablet running Ubuntu 18.10. Using two fingers to scroll, zoom around, etc works great (in e.g. Chromium) when running under XWayland, but only a single touch point seems to be recognized under Xorg.



    Running xinput test-xi2 <device-id> shows TouchEvent's on Wayland, but ButtonEvent's on Xorg, so it appears that my touchscreen is configured wrong and Xorg is interpreting the touchscreen as a mouse.



    Any idea how to configure Xorg to view the touchscreen as, well, a touchscreen?










    share|improve this question



























      0












      0








      0







      I have a Thinkpad X1 Tablet running Ubuntu 18.10. Using two fingers to scroll, zoom around, etc works great (in e.g. Chromium) when running under XWayland, but only a single touch point seems to be recognized under Xorg.



      Running xinput test-xi2 <device-id> shows TouchEvent's on Wayland, but ButtonEvent's on Xorg, so it appears that my touchscreen is configured wrong and Xorg is interpreting the touchscreen as a mouse.



      Any idea how to configure Xorg to view the touchscreen as, well, a touchscreen?










      share|improve this question















      I have a Thinkpad X1 Tablet running Ubuntu 18.10. Using two fingers to scroll, zoom around, etc works great (in e.g. Chromium) when running under XWayland, but only a single touch point seems to be recognized under Xorg.



      Running xinput test-xi2 <device-id> shows TouchEvent's on Wayland, but ButtonEvent's on Xorg, so it appears that my touchscreen is configured wrong and Xorg is interpreting the touchscreen as a mouse.



      Any idea how to configure Xorg to view the touchscreen as, well, a touchscreen?







      touchscreen 18.10 multi-touch






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      share|improve this question













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      share|improve this question








      edited Dec 17 '18 at 19:17







      G. Meyer

















      asked Dec 17 '18 at 19:08









      G. MeyerG. Meyer

      1013




      1013






















          1 Answer
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          Figured it out! It is just this bug, reported here:



          https://bugs.launchpad.net/ubuntu/+source/xf86-input-wacom/+bug/1774242



          I summarize here:



          /usr/share/X11/xorg.conf.d/70-wacom.conf as shipped, has this:



          Section "InputClass"
          Identifier "Wacom touchscreen class"
          MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
          MatchDevicePath "/dev/input/event*"
          MatchIsTouchscreen "true"
          Driver "wacom"
          EndSection


          and also perhaps an entry for Wacom USB touchscreen class. This causes the touchscreen to use the Wacom driver instead of the much better libinput driver. Simply removing that whole section, as well as the USB one, got my touchscreen working wonderfully!






          share|improve this answer





















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            1 Answer
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            0














            Figured it out! It is just this bug, reported here:



            https://bugs.launchpad.net/ubuntu/+source/xf86-input-wacom/+bug/1774242



            I summarize here:



            /usr/share/X11/xorg.conf.d/70-wacom.conf as shipped, has this:



            Section "InputClass"
            Identifier "Wacom touchscreen class"
            MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
            MatchDevicePath "/dev/input/event*"
            MatchIsTouchscreen "true"
            Driver "wacom"
            EndSection


            and also perhaps an entry for Wacom USB touchscreen class. This causes the touchscreen to use the Wacom driver instead of the much better libinput driver. Simply removing that whole section, as well as the USB one, got my touchscreen working wonderfully!






            share|improve this answer


























              0














              Figured it out! It is just this bug, reported here:



              https://bugs.launchpad.net/ubuntu/+source/xf86-input-wacom/+bug/1774242



              I summarize here:



              /usr/share/X11/xorg.conf.d/70-wacom.conf as shipped, has this:



              Section "InputClass"
              Identifier "Wacom touchscreen class"
              MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
              MatchDevicePath "/dev/input/event*"
              MatchIsTouchscreen "true"
              Driver "wacom"
              EndSection


              and also perhaps an entry for Wacom USB touchscreen class. This causes the touchscreen to use the Wacom driver instead of the much better libinput driver. Simply removing that whole section, as well as the USB one, got my touchscreen working wonderfully!






              share|improve this answer
























                0












                0








                0






                Figured it out! It is just this bug, reported here:



                https://bugs.launchpad.net/ubuntu/+source/xf86-input-wacom/+bug/1774242



                I summarize here:



                /usr/share/X11/xorg.conf.d/70-wacom.conf as shipped, has this:



                Section "InputClass"
                Identifier "Wacom touchscreen class"
                MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
                MatchDevicePath "/dev/input/event*"
                MatchIsTouchscreen "true"
                Driver "wacom"
                EndSection


                and also perhaps an entry for Wacom USB touchscreen class. This causes the touchscreen to use the Wacom driver instead of the much better libinput driver. Simply removing that whole section, as well as the USB one, got my touchscreen working wonderfully!






                share|improve this answer












                Figured it out! It is just this bug, reported here:



                https://bugs.launchpad.net/ubuntu/+source/xf86-input-wacom/+bug/1774242



                I summarize here:



                /usr/share/X11/xorg.conf.d/70-wacom.conf as shipped, has this:



                Section "InputClass"
                Identifier "Wacom touchscreen class"
                MatchProduct "Wacom|WACOM|PTK-540WL|ISD-V4"
                MatchDevicePath "/dev/input/event*"
                MatchIsTouchscreen "true"
                Driver "wacom"
                EndSection


                and also perhaps an entry for Wacom USB touchscreen class. This causes the touchscreen to use the Wacom driver instead of the much better libinput driver. Simply removing that whole section, as well as the USB one, got my touchscreen working wonderfully!







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Dec 17 '18 at 19:45









                G. MeyerG. Meyer

                1013




                1013






























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