> Date: Wed, 27 May 2020 19:39:07 +1000
> From: Jonathan Gray <j...@jsg.id.au>
> 
> When testing the row and column increase for efifb on a 1920x1080
> display I noticed the top part of the screen continues to contain part
> of a white on blue line from earlier in the dmesg even after the machine
> has finished booting.
> 
> RI_CENTER changes the ri_bits offset, doing RI_CLEARMARGINS in cnremap
> clears the fragment of a line caused by using RI_CENTER.

ok kettenis@

> Index: efifb.c
> ===================================================================
> RCS file: /cvs/src/sys/arch/amd64/amd64/efifb.c,v
> retrieving revision 1.31
> diff -u -p -r1.31 efifb.c
> --- efifb.c   27 May 2020 07:48:02 -0000      1.31
> +++ efifb.c   27 May 2020 09:27:50 -0000
> @@ -219,7 +219,7 @@ efifb_attach(struct device *parent, stru
>               crow = ri->ri_crow;
>  
>               efifb_rasops_preinit(fb);
> -             ri->ri_flg &= ~RI_CLEAR;
> +             ri->ri_flg &= ~(RI_CLEAR | RI_CLEARMARGINS);
>               ri->ri_flg |= RI_VCONS | RI_WRONLY;
>  
>               rasops_init(ri, efifb_std_descr.nrows, efifb_std_descr.ncols);
> @@ -478,7 +478,7 @@ efifb_cnremap(void)
>  
>       efifb_rasops_preinit(fb);
>       ri->ri_flg &= ~RI_CLEAR;
> -     ri->ri_flg |= RI_CENTER | RI_WRONLY;
> +     ri->ri_flg |= RI_CENTER | RI_WRONLY | RI_CLEARMARGINS;
>  
>       rasops_init(ri, efifb_std_descr.nrows, efifb_std_descr.ncols);
>  
> 
> 

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