I have an HP 15m-ed0023dx running EndeavourOS, although the same problem also occurred in Windows 11. The built-in keyboard, touchscreen, and touchpad are completely unusable once the operating system starts: the touchscreen does not respond, the touchpad will not move the pointer, and the keyboard produces no input. However, the keyboard works normally in the BIOS and in the systemd/GRUB boot menus. Only USB keyboards and mice continue working after the OS loads. The issue therefore seems to occur during OS initialization rather than being a physical hardware failure. Has anyone encountered this model-specific problem, and are there useful logs or kernel parameters to investigate?
1 Answer
First make sure the BIOS is fully updated; firmware revisions can affect the internal input devices. For this model, F.30 Rev.A was reported as the latest available version. If the BIOS is already current, the next step is checking whether the kernel's ACPI or i8042 handling is causing the devices to disappear.
I updated the BIOS, but the built-in devices still stop responding once the operating system loads.