On 20/03/25 08:13, Antheas Kapenekakis wrote:
> The folio keyboard of the Z13 can get stuck in its BIOS mode, where the
> touchpad behaves like a mouse and the keyboard start button is not
> reliable if we perform the initialization too quickly. This mostly
> happens during boot, and can be verified to be caused by hid-asus
> through simple blacklisting. A small delay fixes it.
>
> Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
> ---
> drivers/hid/hid-asus.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
> index 85ae75478b796..5b75ee83ae290 100644
> --- a/drivers/hid/hid-asus.c
> +++ b/drivers/hid/hid-asus.c
> @@ -571,6 +571,10 @@ static int asus_kbd_register_leds(struct hid_device *hdev)
> unsigned char kbd_func;
> int ret;
>
> + /* Wait a bit before init to prevent locking the keyboard */
> + if (dmi_match(DMI_PRODUCT_FAMILY, "ROG Flow Z13"))
> + msleep(500);
> +
> ret = asus_kbd_init(hdev);
> if (ret < 0)
> return ret;
See my comment on patch 1 about trying a loop with the init
request/response as a hopeful way to test readiness.
Cheers,
Luke.