From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mathieu Othacehe <m.othacehe@gmail.com>
Subject: bug#40538: installer: Support uvesafb to install on machines without
 KMS.
Date: Sun, 12 Apr 2020 16:48:36 +0200
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To: "pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de>
Cc: 40538@debbugs.gnu.org


Hey!

> All is fine vga=793 does not break uvesafb on my Acer Aspire but does
> not help either.  Only on QEMU vga=793 broke everything.  Maybe leave
> the patch as is.

Thanks for your patch. I tried briefly 1.1.0-rc2 on some hardware of
mine. On three somehow recent laptops, everything still works fine but
v86d segfaults without giving much information.

The 'dmesg' output looks like:

--8<---------------cut here---------------start------------->8---
v86d[371]: segfault at xxxxx.
uvesafb: Getting VBE info block failed (eax=0x4f00, err=1)
uvesafb: vbe_init() failed with -22
uvesafb: probe of uvesafb.0 failed with error -22
--8<---------------cut here---------------end--------------->8---

On a really old Intel machine, I have a complete black screen on all TTY
but that was maybe the case on older Guix System revisions and I would
need to do more investigations.

Mathieu