linux-kernel - Re: 2.6.29-git12 breaks vga=0x0f07 on MSI/Intel GPU

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Message-ID: <49D9417D.8060309@zytor.com>
Date:	Sun, 05 Apr 2009 16:40:45 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.29-git12 breaks vga=0x0f07 on MSI/Intel GPU

Andi Kleen wrote:
> Hi,
> 
> Something between 2.6.29 and 2.6.29-git12 broke vga=0x0f07 text mode
> on one of my test boxes. The text mode display is still (barely)visible, 
> but the display contents continuous move over the screen horizontally while
> flickering. Without the option in 80x25 mode it still works. 2.6.29
> also works fine.
> 
> This is a MSI system with integrated Intel GPU.
> 
> 00:02.1 Display controller: Intel Corporation: Unknown device 29c3 (rev 02)
> 
> Please tell me if you need more information, i'm not sure
> what I should collect.
> 

vga=0xf07 (80x60) was broken until recently; it actually implemented the
equivalent of "vga=0xf01" (80x50).

Can you boot 2.6.22 with "vga=0xf07" on this box, and if so, how does it
behave?

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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