RE: + vgacon-fix-doublescan-mode.patch added to -mm tree

[Jason Dravet]

Can you please include this patch from the mm tree?  It would be nice to 
have a functioning CLI again (without having to patch and recompile every 
kernel).

Thanks,
Jason

> From: akpm@xxxxxxxx
> To: samuel.thibault@xxxxxxxxxxxx, dravet@xxxxxxxxxxx,   
> mm-commits@xxxxxxxxxxxxxxx
> Subject: + vgacon-fix-doublescan-mode.patch added to -mm tree
> Date: Wed, 16 Nov 2005 18:34:51 -0800
>
> The patch titled
>
>      vgacon: fix doublescan mode
>
> has been added to the -mm tree.  Its filename is
>
>      vgacon-fix-doublescan-mode.patch
>
>
> From: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
>
> When doublescan mode is in use, scanlines must be doubled.
>
> Thanks to Jason Dravet <dravet@xxxxxxxxxxx> for reporting and testing.
>
> Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
> Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
> ---
>
>  drivers/video/console/vgacon.c |    8 +++++++-
>  1 files changed, 7 insertions(+), 1 deletion(-)
>
> diff -puN drivers/video/console/vgacon.c~vgacon-fix-doublescan-mode 
> drivers/video/console/vgacon.c
> --- 
> devel/drivers/video/console/vgacon.c~vgacon-fix-doublescan-mode	2005-11-16 
> 18:34:47.000000000 -0800
> +++ devel-akpm/drivers/video/console/vgacon.c	2005-11-16 18:34:47.000000000 
> -0800
> @@ -503,10 +503,16 @@ static int vgacon_doresize(struct vc_dat
>  {
>  	unsigned long flags;
>  	unsigned int scanlines = height * c->vc_font.height;
> -	u8 scanlines_lo, r7, vsync_end, mode;
> +	u8 scanlines_lo, r7, vsync_end, mode, max_scan;
>
>  	spin_lock_irqsave(&vga_lock, flags);
>
> +	outb_p(VGA_CRTC_MAX_SCAN, vga_video_port_reg);
> +	max_scan = inb_p(vga_video_port_val);
> +
> +	if (max_scan & 0x80)
> +		scanlines <<= 1;
> +
>  	outb_p(VGA_CRTC_MODE, vga_video_port_reg);
>  	mode = inb_p(vga_video_port_val);
>
> _
>
> Patches currently in -mm which might be from samuel.thibault@xxxxxxxxxxxx 
> are
>
> vgacon-fix-doublescan-mode.patch


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