Re: patch: jump scrolling text consoles

[Ignatios Souvatzis <is%netbsd.org@localhost>]

On Sun, Mar 01, 2026 at 06:54:03AM +0000, RVP wrote:
> On Sat, 7 Feb 2026, Ignatios Souvatzis wrote:
> 
> > as nouveau doesn't work on my Thinkpad W701 with its NVIDIA G92
> > (see port-amd64/58305), I'm running it for non-test uses with
> > 
> > menu=Boot 10 nonouveautest:vesa 0x165;rndseed /etc/entropy-file;userconf disable nouveau*;boot netbsd10.test
> > 
> > where netbsd10.test has the patch below to make the console scroll
> > half the screen (instead of one line) when reaching bottom.
> > 
> > The reason is that until a certain point in the boot process, scrolling
> > is very slow (about 1-2 seconds per line).
> > 
> 
> Can you, instead, try changing this test:
> 
> https://github.com/NetBSD/src/blob/trunk/sys/arch/x86/x86/genfb_machdep.c#L156
> 
> to just:
> 
> ```
> 	if (x86_genfb_use_shadowfb) {
> ```
> 
> I see no reason why a shadow FB should be restricted to only EFI framebuffers.

Works for me (and even faster than my jumpscrolling patch). Who's going to
commit?

	-is