From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@9fans.net
Subject: Re: [9fans] [frank@inua.be: Re: no frame buffer]
Date: Sun, 6 Jun 2010 17:26:59 -0400 [thread overview]
Message-ID: <b262e361ec718c88aa2f6d01d1cca606@kw.quanstro.net> (raw)
In-Reply-To: <201006062213.22841.0intro@gmail.com>
> I am the one who wrote that on the Plan 9 Wiki.
>
> I encountered this problem with my WYSE Winterm 9150SE
> two years ago.
>
> Russ Cox helped me to work on that problem.
>
> As far I remember, the problem is the function vbecall
> (/sys/src/cmd/aux/vga/vesa.c) never return.
>
> VESA call need to switch to real mode, but getting out
> from it only work on some machines.
>
> According to Russ Cox, the fix is to change the
> kernel's bios execution to use either VM86 mode
> or a software x86 emulator.
are you sure that that still applies now that
interrupts are really turned off for vbe calls?
one way to tell the difference between stuck
in vbe land and hosed video is if ^T^Tr works,
it's just bad mode setting.
- erik
prev parent reply other threads:[~2010-06-06 21:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-26 16:32 frank
2010-05-27 0:00 ` erik quanstrom
2010-05-27 21:02 ` frank
2010-06-06 20:13 ` David du Colombier
2010-06-06 21:26 ` erik quanstrom [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=b262e361ec718c88aa2f6d01d1cca606@kw.quanstro.net \
--to=quanstro@quanstro.net \
--cc=9fans@9fans.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).