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igfx: aaand vga support for x200s :-)

--- a/sys/src/cmd/aux/vga/igfx.c

+++ b/sys/src/cmd/aux/vga/igfx.c

@@ -779,6 +779,19 @@

 		else

 			x = (igfx->adpa.v >> 30) & 1;

 		igfx->adpa.v |= (1<<31);

+		if(igfx->type == TypeG45){

+			igfx->adpa.v &= ~(3<<10);	/* Monitor DPMS */

+

+			igfx->adpa.v &= ~(1<<15);	/* ADPA Polarity Select */

+			if(m->vsync == '+')

+				igfx->adpa.v |= 1<<4;

+			else if(m->vsync == '-')

+				igfx->adpa.v &= ~(1<<14);

+			if(m->hsync == '+')

+				igfx->adpa.v |= 1<<3;

+			else if(m->hsync == '-')

+				igfx->adpa.v &= ~(1<<3);

+		}

 	}

 	p = &igfx->pipe[x];