CRTC2_DISPLAY_DIS  282 include/video/aty128.h #define CRTC2_DISPLAY_DIS			0x00800000
CRTC2_DISPLAY_DIS 1250 include/video/mach64.h #define CRTC2_DISPLAY_DIS	0x00000400
CRTC2_DISPLAY_DIS  554 include/video/radeon.h #define CRTC2_DISPLAY_DIS                          (1 << 23)