nvidia/engine/nv_brooktreetv.c

593 	// 3. Then tune h_blank_o for centered output on scope (look at front porch and back porch);
594 	// 4. Now shift the TV output using Hsync_offset for centered output while looking at TV (in method 'SetBT_Hphase' above);
613 	buffer[9] = 0xf2;		//v_active_o: = (active output lines + 2) / field (on TV)
693 	// 3. Then tune h_blank_o for centered output on scope (look at front porch and back porch);
694 	// 4. Now shift the TV output using Hsync_offset for centered output while looking at TV (in method 'SetBT_Hphase' above);
713 	buffer[9] = 0x2e;		//v_active_o: = (active output lines + 2) / field (on TV)
803 	// 3. Then tune h_blank_o for centered output on scope (look at front porch and back porch);
804 	// 4. Now shift the TV output using Hsync_offset for centered output while looking at TV (in method 'SetBT_Hphase' above);
817 	buffer[9] = 0xf2;		//v_active_o: = (active output lines + 2) / field (on TV)
905 static uint8 BT_setup_output(uint8 monstat, uint8 output, uint8 ffilter)
931 	switch (output)
943 	 * This cable connects the Y (DAC C) output to the TV CVBS input. */
978 							 	//CVBS only (but on CVBS output), or
1011 	/* select first TV output timing register to write */
1116 	LOG(4,("Brooktree: Autodetecting connected output devices\n"));
1184 	LOG(4,("Brooktree: TV output monitor status = %d\n", *monstat));
1213 	LOG(4,("Brooktree: Killing clock and/or blacking out (blocking output signals)\n"));
1248 		/* Disable CX video out (or wild output will be seen on TV..) */
1507 		target->timing.h_sync_start = 744;		//set for CH/BT compatible TV output
1521 			target->timing.h_sync_start = 856;		//set for centered TV output
1527 			target->timing.h_sync_start = 848;		//set for centered TV output
1658 	/* read current output devices connection status */
1720 	/* setup output signal routing and flickerfilter */