Re: [PATCH] fbdev: workaround for broken X servers

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

On Fri, 2004-11-05 at 20:55 +0800, Antonino A. Daplas wrote:

> And make it black is usually done in software (by memsetting the screen with
> the black color).  
> 
> So why not this:  In fbcon_blank(), if the blank parameter is:
> 
> 0 - unblank the screen, and call info->fbops->fb_blank(VESA_NO_BLANKING), 
>      then return a nonzero value to force a redraw.
> 1,2,3,4 - clear the screen with all black
> 2,3,4 - call info->fbops->fb_blank(blank - 1);
> 
> Similarly, we can do the same thing in fbmem.c:fb_blank(), but without the software
> blanking.
> 
> Drivers will just need to follow the VESA_* defines in fb.h (which happens to be also
> defined in console.h)

Ah... so radeonfb is correct then, and fb_blank() is not ? X is
definitely passing +1 values it seems.

Ben.




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