1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 7e9c835f9ae..a4d382c8bf5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1031,6 +1031,8 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
 
         /* enable it... */
         fbc_ctl = FBC_CTL_EN | FBC_CTL_PERIODIC;
+        if (IS_I945GM(dev))
+                fbc_ctl |= FBC_C3_IDLE; /* 945 needs special SR handling */
         fbc_ctl |= (dev_priv->cfb_pitch & 0xff) << FBC_CTL_STRIDE_SHIFT;
         fbc_ctl |= (interval & 0x2fff) << FBC_CTL_INTERVAL_SHIFT;
         if (obj_priv->tiling_mode != I915_TILING_NONE)