| Summary: | click-drag and 2 finger scroll does not work on Thinkpad T440 | ||
|---|---|---|---|
| Product: | Wayland | Reporter: | Tomasz Torcz <zdzichu> |
| Component: | libinput | Assignee: | Wayland bug list <wayland-bugs> |
| Status: | RESOLVED NOTOURBUG | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | CC: | peter.hutterer, zdzichu |
| Version: | unspecified | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: |
recording when clicking+dragging
recording while two-finger scrolling |
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Created attachment 139690 [details]
recording while two-finger scrolling
fwiw, I have a t440s so I know the touchpad, should be the exact same hardware too. - two finger scroll ON - edge scroll ON These two are mutually exclusive, libinput will enable either but not both. Which one are you setting last? trackpoints != touchpads, are you trying to measure the wrong device? The two-finger scroll attachment 139690 [details] has two fingers down but one finger isn't moving at all. And by that I don't just mean it's not moving much, it literally isn't sending any events. That's unusual and points at a kernel/firmware issue. For attachment 139689 [details], libinput debug-events --verbose says: event20 POINTER_BUTTON +35.32s BTN_LEFT (272) pressed, seat count: 1 event20 - palm: touch 0, palm detected (pressure) event20 POINTER_BUTTON +38.74s BTN_LEFT (272) released, seat count: 0 event20 - button state: touch 0 from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE i.e. as you press down your finger exceeds the pressure threshold and is now interpreted as palm, hence it stops moving. I guess what we need here is a extra toggle that labels the clicking finger as not eligible for palm detection. I'd appreciate any help with that, I'm a bit short on time atm. FTR, I've upgraded firmware of this laptop to Version: GJET98WW (2.48). Now two-finger scrolling works. So this was indeed hardware issue. thanks! do you know what version you had before? So I can add this to my records in case this pops up again |
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Created attachment 139689 [details] recording when clicking+dragging libinput-1.10.7-1.fc28.x86_64; it's Fedora 28 I'm using Gnome with following settings: - touchpad ON - natural scrolling ON - tap to click ON - two finger scroll ON - edge scroll ON The hardware is Lenovo Thinkpad T440 with button-less touchpad (this was the one year Lenovo fscked up and virtualized trackpoint buttons; they reverted this change next year). The touchpad has markings for three virtual buttons at the top. The touchpad moves down (towards inside of the computer; don't know how to describe it precisely) during clicking. THE PROBLEM: 1) click-and-drag doesn't work. When I push down, the click is registered. But when I keep the finger down and start moving the finger over touchpad, the mouse cursor doesn't move. 2) Two finger scrolling doesn't work at all. Hopefully there's a trackpoint, so I can work around the problem using trackpoint + virtual left button and trackpoint + virtual middle button (for scrolling) P: /devices/platform/i8042/serio1/input/input10/event16 N: input/event16 S: input/by-path/platform-i8042-serio-1-event-mouse E: DEVLINKS=/dev/input/by-path/platform-i8042-serio-1-event-mouse E: DEVNAME=/dev/input/event16 E: DEVPATH=/devices/platform/i8042/serio1/input/input10/event16 E: EVDEV_ABS_00=::41 E: EVDEV_ABS_01=::37 E: EVDEV_ABS_35=::41 E: EVDEV_ABS_36=::37 E: ID_BUS=i8042 E: ID_INPUT=1 E: ID_INPUT_HEIGHT_MM=66 E: ID_INPUT_TOUCHPAD=1 E: ID_INPUT_TOUCHPAD_INTEGRATION=internal E: ID_INPUT_WIDTH_MM=97 E: ID_PATH=platform-i8042-serio-1 E: ID_PATH_TAG=platform-i8042-serio-1 E: ID_SERIAL=noserial E: LIBINPUT_DEVICE_GROUP=11/2/7:isa0060/serio1 E: LIBINPUT_MODEL_SYNAPTICS_SERIAL_TOUCHPAD=1 E: MAJOR=13 E: MINOR=80 E: SUBSYSTEM=input E: USEC_INITIALIZED=23392770 libinput measure trackpoint-range produces no output (apart from initial banner) There's no 'sensitivity' file anywhere in /sys/class/input