[Asus ZenBook Flip 15] No tablet mode, when rotates screen

https://bugzilla.kernel.org/show_bug.cgi?id=215962

I have problem, which I reported to kernel developers, but without any response. Maybe here someone will help me with gathering info. I am beginner C developer and wrote only small kernel (Text mode + keyboard support, without userspace yet), so I think I would not fix this bug by myself.

Any suggestions?