Comment # 2 on bug 1226451 from Stefan Dirsch

(In reply to Felix Miata from comment #1)
> Did your upgrade reinstall xf86-video-intel, asked to be removed in your
> prior bug report?

There I asked to remove this package as workaround, because it loaded the wrong
Mesa driver. This had been fixed as an update for Leap 15.5. This fix is also
on Leap 15.6 of course.

But yeah. Maybe it helps to remove this package and switch to modesetting X
driver, if this driver package is installed.