diff --git a/drivers/char/drm/radeon_irq.c b/drivers/char/drm/radeon_irq.c
index 3ff0baa..a990bb6 100644
--- a/drivers/char/drm/radeon_irq.c
+++ b/drivers/char/drm/radeon_irq.c
@@ -227,9 +227,8 @@ void radeon_driver_irq_postinstall(drm_device_t * dev)
 	atomic_set(&dev_priv->swi_emitted, 0);
 	DRM_INIT_WAITQUEUE(&dev_priv->swi_queue);
 
-	/* Turn on SW and VBL ints */
-	RADEON_WRITE(RADEON_GEN_INT_CNTL,
-		     RADEON_CRTC_VBLANK_MASK | RADEON_SW_INT_ENABLE);
+	/* Turn on the SW interrupt */
+	RADEON_WRITE(RADEON_GEN_INT_CNTL, RADEON_SW_INT_ENABLE);
 }
 
 void radeon_driver_irq_uninstall(drm_device_t * dev)