diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 83d4dbd..25ece43 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -589,6 +589,7 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
 		/* if TV DAC is enabled for another crtc and keep it enabled */
 		crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL) & 0x00718080;
 		crtc2_gen_cntl |= ((format << 8)
+				   | RADEON_CRTC2_EN
 				   | RADEON_CRTC2_VSYNC_DIS
 				   | RADEON_CRTC2_HSYNC_DIS
 				   | RADEON_CRTC2_DISP_DIS
@@ -618,6 +619,7 @@ static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mod
 
 		crtc_gen_cntl = RREG32(RADEON_CRTC_GEN_CNTL) & 0x00718000;
 		crtc_gen_cntl |= (RADEON_CRTC_EXT_DISP_EN
+				 | RADEON_CRTC_EN
 				 | (format << 8)
 				 | RADEON_CRTC_DISP_REQ_EN_B
 				 | ((mode->flags & DRM_MODE_FLAG_DBLSCAN)