From: Matthew Garrett <mgarrett@chiark.greenend.org.uk>
To: gl@dsa-ac.de
Cc: linux-kernel@vger.kernel.org
Subject: Re: who sets boot_params[].screen_info.orig_video_isVGA?
Date: Mon, 5 Sep 2005 16:58:21 +0100 [thread overview]
Message-ID: <E1ECJMT-0004Zp-00@chiark.greenend.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.63.0509051736420.11341@pcgl.dsa-ac.de>
gl@dsa-ac.de <gl@dsa-ac.de> wrote:
> Do I get it right, that, say, if I tell grub to load a kernel and specify
> "vga=xxx" on the kernel command line, grub will interpret it, issue some
> VESA BIOS calls and fill in the screen_info struct? If so, the card often
> supports several modes (VGA, SVGA, VESA, different resolutions, colour
> depths, etc.), right? So, which one will be chosen? Does it depend on the
> specific value I give to "vga="? How do I force VIDEO_TYPE_VLFB (VESA VGA
> in graphic mode) mopde then?
Yup. You probably want to take a look at Documentation/fb/vesafb.txt -
the modes are the same.
--
Matthew Garrett | mjg59-chiark.mail.linux-rutgers.kernel@srcf.ucam.org
next prev parent reply other threads:[~2005-09-05 15:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-05 15:01 gl
2005-09-05 15:29 ` Matthew Garrett
2005-09-05 15:45 ` gl
2005-09-05 15:58 ` Matthew Garrett [this message]
2005-09-06 1:19 ` Antonino A. Daplas
2005-09-06 7:32 ` gl
2005-09-06 8:33 ` Antonino A. Daplas
2005-09-06 9:20 ` input/touchscreen (was Re: who sets boot_params[].screen_info.orig_video_isVGA?) gl
2005-09-06 9:33 ` gl
2005-09-06 10:41 ` gl
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