> I've started using XalphaNetBSD on my DEC 3000/300 recently.  I love it,
> and applaud those who got it working.  I was wondering if anyone could
> tell me how to do the following:
>    ...
> 2) Enable the built-in screenblank (and turn off keyclick).  The xset
> command does not appear to do this for me.  (It reports screenblanking
> is enabled, but the screenblank never activates.)

Here is the void-filling piece of code to make sfb SVIDEO ioctl working.

Tohru Nishimura

Index: sfb.c
===================================================================
RCS file: /cvsroot/syssrc/sys/dev/tc/sfb.c,v
retrieving revision 1.43
diff -c -r1.43 sfb.c
*** sfb.c	2001/01/19 05:43:43	1.43
--- sfb.c	2001/02/13 05:39:30
***************
*** 427,437 ****
  
  	case WSDISPLAYIO_SVIDEO:
  		turnoff = *(int *)data == WSDISPLAYIO_VIDEO_OFF;
! 		if ((dc->dc_blanked == 0) ^ turnoff) {
  			dc->dc_blanked = turnoff;
- #if 0 /* XXX later XXX */
- 		To turn off, assign value 0 in ASIC_VIDEO_VALID register.
- #endif	/* XXX XXX XXX */
  		}
  		return (0);
  
--- 427,439 ----
  
  	case WSDISPLAYIO_SVIDEO:
  		turnoff = *(int *)data == WSDISPLAYIO_VIDEO_OFF;
! 		if (dc->dc_blanked ^ turnoff) {
! 			caddr_t sfbasic;
! 			sfbasic = (caddr_t)dc->dc_vaddr + SFB_ASIC_OFFSET;
! 			*(u_int32_t *)(sfbasic + SFB_ASIC_VIDEO_VALID)
! 				= !turnoff;
! 			tc_wmb();
  			dc->dc_blanked = turnoff;
  		}
  		return (0);
  
--