ExtendedDesktopSupport 2913 drivers/gpu/drm/amd/include/atombios.h   USHORT ExtendedDesktopSupport:1;
ExtendedDesktopSupport 2919 drivers/gpu/drm/amd/include/atombios.h   USHORT ExtendedDesktopSupport:1;
ExtendedDesktopSupport 2471 drivers/gpu/drm/radeon/atombios.h   USHORT ExtendedDesktopSupport:1;
ExtendedDesktopSupport 2477 drivers/gpu/drm/radeon/atombios.h   USHORT ExtendedDesktopSupport:1;