Small artifacts in intel video driver and uxa mode

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

Hi to all NetBSD users! Sorry for my bad English...

Hardware: Intel NUC5PPYH CPU Intel N3700 Braswell Intel HD Graphics 

NetBSD 9.0 (RELEASE) amd64 uefi image.

I use the "wsfb" driver in /etc/X11/xorg.conf, all OK, but it performance is not the highest. Very large artifacts are observed with the "intel" video driver by default. With the "intel" driver and Option "AccelMethod" "uxa" the situation is better, but small artifacts are still present (with parts of horizontal lines on mouse moving).

Photo of the artifacts: https://yadi.sk/i/l6t58jcQe6nEJQ

Is there any hope of fixing this problem in NetBSD 9.0-STABLE or CURRENT?

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best regards,
Dmitrii Postolov
dpostolov%yandex.ru@localhost