--- Begin Message ---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 with a patch suggested by RVP on tech-kern, as 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. I've tested this on the machine in question, netbsd10.1 userland, with netbsd10, netbsd11 and netbsd-11.99.5 kernels (with this patch), and on a machine with intel graphics. Should I proceed to commit? The change is appended as a patch; revisions mentioned should be from my netbsd-10 source tree, but works unchanged on 11 and current. -is Index: x86/genfb_machdep.c =================================================================== RCS file: /cvsroot/src/sys/arch/x86/x86/genfb_machdep.c,v retrieving revision 1.19.4.4 diff -u -r1.19.4.4 genfb_machdep.c --- x86/genfb_machdep.c 21 Oct 2023 12:59:25 -0000 1.19.4.4 +++ x86/genfb_machdep.c 5 Apr 2026 17:29:17 -0000 @@ -153,7 +153,7 @@ ri->ri_rpos = fbinfo->rpos; ri->ri_gpos = fbinfo->gpos; ri->ri_bpos = fbinfo->bpos; - if (x86_genfb_use_shadowfb && lookup_bootinfo(BTINFO_EFI) != NULL) { + if (x86_genfb_use_shadowfb) { /* XXX The allocated memory is never released... */ ri->ri_bits = kmem_alloc(ri->ri_stride * ri->ri_height, KM_SLEEP);
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