Touchpad input is shaking/wobbling
Hey !
I'm encountering an issue that does not seem to be a hardware bug with my touchpad : Whenever I use the touchpad, the cursor jumps around at what seems to be entirely random, usually just a small distance in any direction in a wobbling/shaking manner. This behavior is not observed on Windows.
It seems that the wobbling is triggered when my finger is in the center of the touchpad: I can freely move the mouse on the edges, but when my finger crosses the center it starts wobbling.
I've tested several versions of libinput, the latest tests and records are from master.
You can find the libinput record here : touchpad.yml
Udev info output :
P: /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-1A586757:00/0018:06CB:8323.0001/input/input12/event5
N: input/event5
S: input/by-path/pci-0000:00:15.1-platform-i2c_designware.1-event-mouse
E: DEVLINKS=/dev/input/by-path/pci-0000:00:15.1-platform-i2c_designware.1-event-mouse
E: DEVNAME=/dev/input/event5
E: DEVPATH=/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-1A586757:00/0018:06CB:8323.0001/input/input12/event5
E: ID_INPUT=1
E: ID_INPUT_HEIGHT_MM=60
E: ID_INPUT_TOUCHPAD=1
E: ID_INPUT_WIDTH_MM=101
E: ID_PATH=pci-0000:00:15.1-platform-i2c_designware.1
E: ID_PATH_TAG=pci-0000_00_15_1-platform-i2c_designware_1
E: ID_SERIAL=noserial
E: LIBINPUT_DEVICE_GROUP=18/6cb/8323:i2c-1A586757:00
E: MAJOR=13
E: MINOR=69
E: SUBSYSTEM=input
E: USEC_INITIALIZED=2322827
Vendor model : Razer Blade Stealth (2017)
The output of cat /sys/class/dmi/id/modalias
:
dmi:bvnRazer:bvr3.02:bd02/22/2018:svnRazer:pnBladeStealth:pvr4.06:rvnRazer:rnBladeStealth:rvr:cvnRazer:ct9:cvr:
Another user has reproduced the issue here : https://unix.stackexchange.com/questions/464987/razer-blade-stealth-touchpad-jumps-with-linux
I would be glad to give you more debugging information if needed !
Thanks a lot for your work and dedication on libinput,
Nayef