SUPPORTED_LCD_REFRESHRATE_40Hz 3891 drivers/gpu/drm/amd/include/atombios.h #define SUPPORTED_LCD_REFRESHRATE_40Hz          0x0008
SUPPORTED_LCD_REFRESHRATE_40Hz 3412 drivers/gpu/drm/radeon/atombios.h #define SUPPORTED_LCD_REFRESHRATE_40Hz          0x0008