From: Tom Rini <trini@kernel.crashing.org>
To: alebas@televes.com
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: CONFIG_DUMMY_CONSOLE question
Date: Mon, 13 Dec 2004 15:38:41 -0700 [thread overview]
Message-ID: <20041213223841.GW18825@smtp.west.cox.net> (raw)
In-Reply-To: <1102586055.41b820c776f7f@webmail.televes.com:443>
On Thu, Dec 09, 2004 at 10:54:15AM +0100, alebas@televes.com wrote:
> Hi all,
>
> Checking console initialization on mpc8272ads board,
> I have seen that the CONFIG_DUMMY_CONSOLE config
> parameter is allways set in root .config file, regardless
> of its value on my arch/ppc/configs/ads8272_defconfig file.
>
> This parameter drives to the VGA dummy console being
> compiled and included in the vmlinux binary, and started
> as default console for the board (which must be changed
> with console boot arg).
>
> Does anyone knows if this parameter is a must in any kernel
> 2.6 configuration? And why? Can it be removed, as my board
> doesn't use VGA at all? How? (I have tried several options)
It's not a "dummy" VGA console, it's a "dummy" console. IIRC, this is
selected with CONFIG_VT (or is it CONFIG_VT_CONSOLE?). IIRC, the real
problem is that when you have dummy console, it steals the console even
if you would have had console on some sort of serial port.
The bottom line is that if you don't have some sort of video device,
just disable CONFIG_VT.
--
Tom Rini
http://gate.crashing.org/~trini/
next prev parent reply other threads:[~2004-12-13 22:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-09 9:54 CONFIG_DUMMY_CONSOLE question alebas
2004-12-13 22:38 ` Tom Rini [this message]
2004-12-14 13:04 ` alebas
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=20041213223841.GW18825@smtp.west.cox.net \
--to=trini@kernel.crashing.org \
--cc=alebas@televes.com \
--cc=linuxppc-embedded@ozlabs.org \
/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).