[Bug 2161223] Re: Touchpad (ELAN0718) not working on HP Pavilion Gaming Laptop 15 with kernel 7.0.0 (Ubuntu 26.04)

Thank you for taking the time to report this issue and help improve Ubuntu. The information you provided is useful. To continue investigating the problem, we need a few additional details. Could you please provide the following? - Attach a complete `dmesg` log from a boot where the problem occurred, preferably after a fresh power cycle. - While running an affected Ubuntu kernel, run `apport-collect 2161223` in a terminal. This will add the diagnostic information directly to this report. I did a little digging and found out a potential workaround: https://bbs.archlinux.org/viewtopic.php?pid=1979370#p1979370, so maybe you could give it a try as another diagnostic step after getting the logs. Thanks! -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2161223 Title: Touchpad (ELAN0718) not working on HP Pavilion Gaming Laptop 15 with kernel 7.0.0 (Ubuntu 26.04) Status in linux package in Ubuntu: Incomplete Bug description: HP Pavilion Gaming Laptop 15 (Ryzen 5 4600H, AMD Raven/Picasso platform) Touchpad ACPI ID: ELAN0718 (I2C HID device), also enumerated as legacy PS/2 (ETPS/2 Elantech) via psmouse psmouse/elantech driver loads without errors and creates input device, but produces zero events (confirmed via evtest and raw /dev/input/eventX read) ACPI device ELAN0718:01 exists on i2c bus (i2c-ELAN0718:01) but has no driver bound, i2c_hid_acpi shows 0 usage No physical I2C controller PCI device found matching this bus (only i2c_piix4 SMBus for RAM SPD) Touchpad works fine under Windows on same hardware Tested: i8042 params, psmouse.elantech_smbus=0, manual driver bind attempts — none resolved it Kernel: 7.0.0-28-generic, Ubuntu 26.04 "resolute" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161223/+subscriptions