[Bug 2142384] Re: ELAN2514:00 (04F3:4428) stylus report rate extremely low (~10–25 Hz) on Ubuntu 24.04 kernel 6.17

@mrmoe12 I let the people in the thread (https://bugzilla.kernel.org/show_bug.cgi?id=220854) know. One of them -- username is BitSlice -- tried your fix. He only needed to had his pen model to the source code and per his reply, it seems to be working fine. He has forked your Github project: https://github.com/BitSlice32/hp-elan2514-pen-fix-cachy-k7.2 Thanks for solving this one. My HP Omnibook works perfectly fine, only the pen is causing issues. Haven't tried your fix yet but I am 100% positive that it will resolve the issue on my end, too. I believe it only needs standardisation (so that other MPP 2 pens are supported without having to add the pen model to the source code). -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2142384 Title: ELAN2514:00 (04F3:4428) stylus report rate extremely low (~10–25 Hz) on Ubuntu 24.04 kernel 6.17 Status in linux package in Ubuntu: Fix Released Bug description: The active stylus on my HP OmniBook x Flip Ultra 14 reports at extremely low frequency (~10–25 Hz) under Ubuntu 24.04.4 LTS with kernel 6.17.0-14-generic. The pen input is choppy and unusable, while touch input works normally. The pen is a HP MPP tilt pen 2.0 Steps to Reproduce: Boot Ubuntu 24.04.4 LTS on HP OmniBook x Flip Ultra 14. Ensure kernel 6.17.0-14-generic is in use. Run: sudo libinput debug-events And then i move the pen and compare the input events with touch on my screen. The timestamps of the pen are 40-100 ms apart, which makes it unusable. I think this is the stylus in libinput: Device: ELAN2514:00 04F3:4428 Stylus Kernel: /dev/input/event7 Group: 5 Seat: seat0, default Size: 300x188mm Capabilities: tablet Accel profiles: none Other relevant info: lsmod | grep hid hid_sensor_prox 20480 0 hid_sensor_trigger 20480 3 hid_sensor_prox hid_sensor_iio_common 24576 2 hid_sensor_trigger,hid_sensor_prox industrialio 139264 4 industrialio_triggered_buffer,hid_sensor_trigger,hid_sensor_prox,kfifo_buf intel_hid 32768 0 sparse_keymap 12288 2 hp_wmi,intel_hid mac_hid 12288 0 hid_sensor_hub 28672 3 hid_sensor_trigger,hid_sensor_iio_common,hid_sensor_prox usbhid 77824 0 hid_multitouch 36864 0 hid_generic 12288 0 i2c_hid_acpi 12288 0 i2c_hid 40960 1 i2c_hid_acpi hid 262144 6 i2c_hid,usbhid,hid_multitouch,hid_sensor_hub,snd_soc_sdca,hid_generic cat /sys/bus/i2c/devices/i2c-ELAN2514:00/power/control on Ubuntu 24.04.4 LTS Kernel: 6.17.0-14-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2142384/+subscriptions