Distribution is a heavily modified Ubuntu that I use for my friends & family, based on Ubuntu 17.10. A friend of the family recently presented me with another laptop to "fix", and I promptly nuked Windows and friends from it and got it booting on Ubuntu, however the Elantech touchpad does not work as expected. Laptop is a Acer ES1-512. I've tried xserver-xorg-input-synaptics, evdev, and libinput, on both Xorg 1.19.5 and under the GNOME Wayland session provided by Ubuntu. The touchpad does not even show up unless I boot with i8042.nopnp. I've tried a whole host of combinations of the various i8042 kernel parameters, but so far have been unsuccessful at getting any event output from any listener, like evemu-record, libinput debug-events, or `input-events 6`. They all print something akin to "Waiting for events", and then no matter where I touch or click on the touchpad, nothing happens. I've also tried setting modprobe parameters for psmouse like `proto=exps` and `proto=imps`, and =exps seems to make the touchpad appear as a generic PS/2 Mouse, but still it produced no events. $ journalctl -b --no-pager | grep -i elan nov. 02 17:56:15 elaptop kernel: psmouse serio1: elantech: assuming hardware version 4 (with firmware version 0x4a5f08) nov. 02 17:56:15 elaptop kernel: psmouse serio1: elantech: Synaptics capabilities query result 0x00, 0x15, 0x0f. nov. 02 17:56:15 elaptop kernel: psmouse serio1: elantech: Elan sample query result 09, 38, 95 nov. 02 17:56:15 elaptop kernel: input: ETPS/2 Elantech Touchpas as /devices/platform/i8042/serio1/input/input6 $ cat /var/log/Xorg.0.log | grep -i touch [ 33.016] (II) config/udev: Adding input device ETPS/2 Elantech Touchpad (/dev/input/event6) [ 33.016] (**) ETPS/2 Elantech Touchpad: Applying InputClass "libinput touchpad catchall" [ 33.016] (**) ETPS/2 Elantech Touchpad: Applying InputClass "touchpad catchall" [ 33.016] (**) ETPS/2 Elantech Touchpad: Applying InputClass "Default clickpad buttons" [ 33.017] (II) Using input driver 'libinput' for 'ETPS/2 Elantech Touchpad' [ 33.017] (**) ETPS/2 Elantech Touchpad: always reports core events [ 33.019] (II) event6 - (II) ETPS/2 Elantech Touchpad: (II) is tagged by udev as: Touchpad [ 33.019] (II) event6 - (II) ETPS/2 Elantech Touchpad: (II) device is a touchpad [ 33.019] (II) event6 - (II) ETPS/2 Elantech Touchpad: (II) device removed [ 33.057] (II) XINPUT: Adding extended input device "ETPS/2 Elantech Touchpad" (type: TOUCHPAD, id 15) [ 33.060] (**) ETPS/2 Elantech Touchpad: (accel) selected scheme none/0 [ 33.060] (**) ETPS/2 Elantech Touchpad: (accel) acceleration factor: 2.000 [ 33.060] (**) ETPS/2 Elantech Touchpad: (accel) acceleration threshold: 4 [ 33.063] (II) event6 - (II) ETPS/2 Elantech Touchpad: (II) is tagged by udev as: Touchpad [ 33.063] (II) event6 - (II) ETPS/2 Elantech Touchpad: (II) device is a touchpad [ 33.066] (II) config/udev: Adding input device ETPS/2 Elantech Touchpad (/dev/input/mouse0) [ 33.066] (**) ETPS/2 Elantech Touchpad: Ignoring device from InputClass "touchpad ignore duplicates" $ apt-cache show libinput-bin | grep -i version Version: 1.8.2-1ubuntu2 $ apt-cache show xserver-xorg-input-libinput | grep -i version Version: 0.25.0-0ubuntu1 $ evemu-describe /dev/input/event6 # EVEMU 1.3 # Kernel: 4.14.0-041400rc7-generic # DMI: dmi:bvnInsydeCorp.:bvrV1.09:bd10/24/2014:svnAcer:pnAspireES1-512:pvrV1.09:rvnAcer:rnAspireES1-512:rvrV1.09:cvnAcer:ct10:cvrV1.09: # Input device name: "ETPS/2 Elantech Touchpad" # Input device ID: bus 0x11 vendor 0x02 product 0x0e version 0000 # Size in mm: 101x73 # Supported events: # Event type 0 (EV_SYN) # Event code 0 (SYN_REPORT) # Event code 1 (SYN_CONFIG) # Event code 2 (SYN_MT_REPORT) # Event code 3 (SYN_DROPPED) # Event code 4 ((null)) # Event code 5 ((null)) # Event code 6 ((null)) # Event code 7 ((null)) # Event code 8 ((null)) # Event code 9 ((null)) # Event code 10 ((null)) # Event code 11 ((null)) # Event code 12 ((null)) # Event code 13 ((null)) # Event code 14 ((null)) # Event code 15 (SYN_MAX) # Event type 1 (EV_KEY) # Event code 272 (BTN_LEFT) # Event code 325 (BTN_TOOL_FINGER) # Event code 330 (BTN_TOUCH) # Event code 333 (BTN_TOOL_DOUBLETAP) # Event code 334 (BTN_TOOL_TRIPLETAP) # Event code 335 (BTN_TOOL_QUADTAP) # Event type 3 (EV_ABS) # Event code 0 (ABS_X) # Value 0 # Min 0 # Max 3240 # Fuzz 0 # Flat 0 # Resolution 32 # Event code 1 (ABS_Y) # Value 0 # Min 0 # Max 2348 # Fuzz 0 # Flat 0 # Resolution 32 # Event code 24 (ABS_PRESSURE) # Value 0 # Min 0 # Max 255 # Fuzz 0 # Flat 0 # Resolution 0 # Event code 28 (ABS_TOOL_WIDTH) # Value 0 # Min 0 # Max 15 # Fuzz 0 # Flat 0 # Resolution 0 # Event code 47 (ABS_MT_SLOT) # Value 0 # Min 0 # Max 4 # Fuzz 0 # Flat 0 # Resolution 0 # Event code 48 (ABS_MT_TOUCH_MAJOR) # Value 0 # Min 0 # Max 2430 # Fuzz 0 # Flat 0 # Resolution 0 # Event code 53 (ABS_MT_POSITION_X) # Value 0 # Min 0 # Max 3240 # Fuzz 0 # Flat 0 # Resolution 32 # Event code 54 (ABS_MT_POSITION_Y) # Value 0 # Min 0 # Max 2348 # Fuzz 0 # Flat 0 # Resolution 32 # Event code 57 (ABS_MT_TRACKING_ID) # Value 0 # Min 0 # Max 65535 # Fuzz 0 # Flat 0 # Resolution 0 # Event code 58 (ABS_MT_PRESSURE) # Value 0 # Min 0 # Max 255 # Fuzz 0 # Flat 0 # Resolution 0 # Properties: # Property type 0 (INPUT_PROP_POINTER) # Property type 2 (INPUT_PROP_BUTTONPAD) N: ETPS/2 Elantech Touchpad I: 0011 0002 000e 0000 P: 05 00 00 00 00 00 00 00 B: 00 0b 00 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 01 00 00 01 00 00 00 00 00 B: 01 20 e4 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 01 00 00 00 00 00 00 00 00 B: 02 00 00 00 00 00 00 00 00 B: 03 03 00 00 11 00 80 61 06 B: 04 00 00 00 00 00 00 00 00 B: 05 00 00 00 00 00 00 00 00 B: 11 00 00 00 00 00 00 00 00 B: 12 00 00 00 00 00 00 00 00 B: 14 00 00 00 00 00 00 00 00 B: 15 00 00 00 00 00 00 00 00 B: 15 00 00 00 00 00 00 00 00 A: 00 0 3240 0 0 32 A: 01 0 2348 0 0 32 A: 18 0 255 0 0 0 A: 1c 0 15 0 0 0 A: 2f 0 4 0 0 0 A: 30 0 2430 0 0 0 A: 35 0 3240 0 0 32 A: 36 0 2348 0 0 32 A: 39 0 65535 0 0 0 A: 3a 0 255 0 0 0 $ udevadm info /sys/class/input/event6 P: /devices/platform/i8042/serio1/input/input6/event6 N: input/event6 E: DEVNAME=/dev/input/event6 E: DEVPATH=/devices/platform/i8042/serio1/input/input6/event6 E: ID_BUS=i8042 E: ID_INPUT=1 E: ID_INPUT_HEIGHT_MM=73 E: ID_INPUT_TOUCHPAD=1 E: ID_INPUT_TOUCHPAD_INTEGRATION=internal E: ID_INPUT_WIDTH_MM=101 E: LIBINPUT_ATTR_PRESSURE_RANGE=10:8 E: LIBINPUT_ATTR_RESOLUTION_HINT=31x31 E: LIBINPUT_DEVICE_GROUP=11/2/e/0:isa0060/serio1 E: MAJOR=13 E: MINOR=70 E: SUBSYSTEM=input E: USEC_INITIALIZED=14196959 $ cat /sys/class/dmi/id/modalias dmi:bvnInsydeCorp.:bvrV1.09:bd10/24/2014:svnAcer:pnAspireES1-512:pvrV1.09:rvnAcer:rnAspireES1-512:rvrV1.09:cvnAcer:ct10:cvrV1.09:
Created attachment 135215 [details] dmesg output
I am experiencing the same issue. My outputs are virtually identical to Vidar.
I didn't mention it here because I figured Hutterer would close this bug; he advised me on IRC that this was most likely a kernel bug, so I've attached myself to https://bugzilla.kernel.org/show_bug.cgi?id=54951 for the reasons I outlined in my comment there. Hopefully someone with knowledge of the kernel module codebase will read it :-)
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