Acer Aspire XC-895 Problem with i915drmkms

[Dmitrii Postolov <dpostolov%yandex.ru@localhost>]

Hi! Sorry for my bad English...

NetBSD 9.99.106 (GENERIC) Tue Nov 8 2022

Hardware: PC Acer Aspire XC-895 CPU Intel Core i5 10400 UHD Graphics 630

Video 1: Bad screen with i915drmkms: https://disk.yandex.ru/i/3ScrUuWivWwqwQ
Video 2: OK screen with disable i915drmkms: 
https://disk.yandex.ru/i/urNWb8gkKhWOcQ

How can I fix the problem with enabled (by default) i915drmkms?

P.S. Also I have a PC nettop Acer Revo Box RN86 CPU Intel Core i5 9400T 
[also] UHD Graphics 630 [but maybe another revision] and with this PC 
all OK with startx by default and enabled i915drmkms.

P.S. of P.S. On FreeBSD all OK with drm module on both PCs (was 5.4 and 
now 5.10)