dd_crt
displays |= dd_crt;
if ((displays & dd_crt) == 0 && (controlled_displays & dd_crt) != 0
displays |= dd_crt;
displays = dd_crt;
if( (total_devices & dd_crt) != 0 ) {
int crtc_idx = (display_devices[1] & dd_crt) != 0;
} else if( (controlled_devices & dd_crt) != 0 ) {
if( (display_devices & dd_crt) != 0 ) {
crtc1_displays |= dd_crt;
crtc2_displays |= dd_crt;
crtc1_displays |= dd_crt;
crtc2_displays |= dd_crt;
dd_tv_crt | dd_crt | dd_lvds | dd_dvi | dd_dvi_ext | dd_ctv | dd_stv;