Public bug reported:
Hardware: HP Laptop 15-ef1013dx
CPU: AMD Ryzen 7 4700U
Kernel: 7.0.0-27-generic
Ubuntu: 26.04 LTS
Touchpad ELAN071A detected in I2C bus but fails to initialize.
dmesg shows:
i2c_hid i2c-ELAN071A:00: supply vdd not found, using dummy regulator
i2c_hid i2c-ELAN071A:00: hid_descr_cmd failed
i2c_hid i2c-ELAN071A:00: Failed to fetch the HID Descriptor
Device visible at /sys/bus/i2c/devices/i2c-ELAN071A:00
uevent shows: waiting_for_supplier
Touchpad works in Windows 11.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2158549
Title:
HP 15-ef1013dx ELAN071A touchpad not working - hid_descr_cmd failed
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