touchscreen doesn't work properly after stylus detection

[Favio D'Ercole]

I have a HP Pavilion x360 convertible 15 br0xx. This laptop has a multitouch touchscreen and an active pen/stylus.

On ubuntu 16.04, the touchscreen used with fingers and the pen/stylus work properly. The touchscreen was identified as «ELAN0732:00 04F3:24B8» as slave pointer and the pen as «ELAN0732:00 04F3:24B8 Pen» as slave pointer too.

But, on ubuntu 18.04 bionic with gnome shell, the pen/stylus is identified «ELAN0732:00 04F3:24B8 Pen» as slave keyboard instead as slave pointer. Touchscreen work well until pen/stylus is used. At this point, a new device «ELAN0732:00 04F3:24B8 Pen Pen (0)» is enabled. The touchscreen stops working and the pen/styles works but with some issues.

    ~$ xinput --list
    ⎡ Virtual core pointer id=2 [master pointer (3)]
    ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
    ⎜ ↳ ETPS/2 Elantech Touchpad id=15 [slave pointer (2)]
    ⎜ ↳ ELAN0732:00 04F3:24B8 id=10 [slave pointer (2)]
    ⎜ ↳ ELAN0732:00 04F3:24B8 Pen Pen (0) id=18 [slave pointer (2)]
    ⎣ Virtual core keyboard id=3 [master keyboard (2)]
        ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
        ↳ Power Button id=6 [slave keyboard (3)]
        ↳ Video Bus id=7 [slave keyboard (3)]
        ↳ Power Button id=8 [slave keyboard (3)]
        ↳ HP Wide Vision HD Camera: HP Wi id=9 [slave keyboard (3)]
        ↳ Intel Virtual Button driver id=12 [slave keyboard (3)]
        ↳ Intel Virtual Button driver id=13 [slave keyboard (3)]
        ↳ AT Translated Set 2 keyboard id=14 [slave keyboard (3)]
        ↳ HP WMI hotkeys id=16 [slave keyboard (3)]
        ↳ HP Wireless hotkeys id=17 [slave keyboard (3)]
        ↳ ELAN0732:00 04F3:24B8 Pen id=11 [slave keyboard (3)]

After disable devices id=11 and id=18, touchscreen recovers its multitouch feature.
There is no combination enabling/disabling ids 10, 11 and 18, to get multitouch and pen working together.

On Wayland session, I get the same behavior.

Note: Ubuntu 18.04 LTS clean installation with «minimal install option» and no other customization.

[Pitrack (pitrackster)]

By disabling the Gesture parameter for my touchscreen multitouch is working. But no more pinch to zoom or to finger to scroll ... no more Gestures !

Both should be able to work together.

Should I open an issue ?

[Pitrack (pitrackster)]

oups sorry wrong place...

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ian Douglas Scott (ids1024)]

I had a similar issue with my HP Spectre laptop, and submitted a bug to libinput: https://gitlab.freedesktop.org/libinput/libinput/issues/261

So with libinput, it seems this can be addressed with the "ModelTabletNoProximityOut" quirk; though libinput needs a more general solution to not require explicit per-device patching.

[Vigas Deep (vigasdeep)]

I have HP Spectre X360 13" 2019 Model, and have the same problem.

After the touch pen/stylus is detected, finger touch stops working. Is there any workaround or command to get it working again?

[Ian Douglas Scott (ids1024)]

The problem should be fixed in git, and available in the 1.14.0.

I don't think there's a workaround other than building from source; but it should be possible to address it that way.