Hi,
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).
The same applies to a netbsd 11 kernel; the patch applies, too.
I wonder if there's interest to wrap this in an option (as in options(4))
and commit it?
Regards,
-is
Index: dev/wscons/wsemul_dumb.c
===================================================================
RCS file: /cvsroot/src/sys/dev/wscons/wsemul_dumb.c,v
retrieving revision 1.18
diff -u -r1.18 wsemul_dumb.c
--- dev/wscons/wsemul_dumb.c 3 Sep 2018 16:29:34 -0000 1.18
+++ dev/wscons/wsemul_dumb.c 7 Feb 2026 16:35:10 -0000
@@ -188,7 +188,7 @@
edp->crow++;
break;
}
- n = 1; /* number of lines to scroll */
+ n = edp->nrows/2; /* number of lines to scroll */
(*edp->emulops->copyrows)(edp->emulcookie, n, 0,
edp->nrows - n);
(*edp->emulops->eraserows)(edp->emulcookie,
Index: dev/wscons/wsemul_vt100.c
===================================================================
RCS file: /cvsroot/src/sys/dev/wscons/wsemul_vt100.c,v
retrieving revision 1.49.4.1
diff -u -r1.49.4.1 wsemul_vt100.c
--- dev/wscons/wsemul_vt100.c 30 Jul 2023 11:47:08 -0000 1.49.4.1
+++ dev/wscons/wsemul_vt100.c 7 Feb 2026 16:35:10 -0000
@@ -375,7 +375,8 @@
if (ROWS_BELOW(vd) == 0) {
/* Bottom of the scroll region. */
- wsemul_vt100_scrollup(vd, 1);
+ wsemul_vt100_scrollup(vd, vd->nrows/2);
+ vd->crow=vd->nrows/2;
} else {
if ((vd->crow+1) < vd->nrows)
/* Cursor not at the bottom of the screen. */
