Comment # 81 on bug 1112963 from Jean Delvare

(In reply to Edward Van Every from comment #80)
> "Screen Change":  when a major portion of the screen needs to be repainted
> or refreshed.  Generally under X11.  As specifically identified, easily seen
> when the initial login screen is "painted".

That one I can't see, not even with the Leap 15.0 kernel. May be specific to
the AST2500 chipset, or depend on the Leap 15.0 user-space.

> Also saw really slow text mode screen updates (as when listing a long file)
> outside of X11 (runlevel 3), but that is not what I've been using as my
> "benchmark".

That's the one I see. For completeness, could you please boot Takashi's test
kernel from comment #52 and confirm that it at least solves the console
(non-X11) slowness? This would confirm that we are chasing 2 different bugs.