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DateTue, 3 Oct 2006 00:20:14 -0700
FromAndrew Morton <>
SubjectRe: [PATCH 5/6] From: Andrew Morton <>
On Tue, 3 Oct 2006 16:55:52 +1000
Paul Mackerras <paulus@samba.org> wrote:

> That is because the nvidia console driver has changed the line pitch
> from what the firmware set it to.  This should fix it by making the
> nvidia driver inform the btext engine (which xmon uses if the screen
> is its output device) about changes to display resolution.
> 
> Signed-off-by: Paul Mackerras <paulus@samba.org>
> ---
> diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
> index d4f8501..18b9101 100644
> --- a/drivers/video/nvidia/nvidia.c
> +++ b/drivers/video/nvidia/nvidia.c
> @@ -28,6 +28,9 @@ #ifdef CONFIG_PPC_OF
>  #include <asm/prom.h>
>  #include <asm/pci-bridge.h>
>  #endif
> +#ifdef CONFIG_BOOTX_TEXT
> +#include <asm/btext.h>
> +#endif
> 
>  #include "nv_local.h"
>  #include "nv_type.h"
> @@ -681,6 +684,13 @@ #endif
> 
>  	nvidia_vga_protect(par, 0);
> 
> +#ifdef CONFIG_BOOTX_TEXT
> +	/* Update debug text engine */
> +	btext_update_display(info->fix.smem_start,
> +			     info->var.xres, info->var.yres,
> +			     info->var.bits_per_pixel, info->fix.line_length);
> +#endif

yup, that fixed it.  xmon apparently doesn't know where fbcon's output
cursor is, but the characters are now readable.

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