From: "Vesa Jääskeläinen" <chaac@nic.fi>
To: The development of GRUB 2 <grub-devel@gnu.org>
Subject: Re: Can we get video card information in EFI environment ?
Date: Sun, 08 Jun 2008 20:51:01 +0300 [thread overview]
Message-ID: <484C1C05.3030005@nic.fi> (raw)
In-Reply-To: <ca0f59980806081035t66eeffa7tbd6c55fb933712ca@mail.gmail.com>
Bean wrote:
> I think the vbe driver need to call bios, is there a way to do it directly ?
Yes, it uses BIOS to determine frame buffer address and setup video mode.
> EFI have uga draw protocol that can do bitblt, but they don't have a
> method to query low level information like frame buffer address and
> line length easily.
In EFI you should use this protocol to do drawing to screen. And you do
not basicly need that low level information (in GRUB 2).
next prev parent reply other threads:[~2008-06-08 17:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-07 18:38 Can we get video card information in EFI environment ? Bean
2008-06-08 17:08 ` Bean
2008-06-08 17:17 ` Vesa Jääskeläinen
2008-06-08 17:35 ` Bean
2008-06-08 17:51 ` Vesa Jääskeläinen [this message]
2008-06-08 18:00 ` Bean
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