diff --git a/src/main.cpp b/src/main.cpp
index 4cd8682..7a268d6 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -375,10 +375,10 @@ static AVCodecContext *create_video_codec_context(AVPixelFormat pix_fmt,
     }
     codec_context->max_b_frames = 0;
     codec_context->pix_fmt = pix_fmt;
-    codec_context->color_range = AVCOL_RANGE_JPEG;
-    codec_context->color_primaries = AVCOL_PRI_BT709;
-    codec_context->color_trc = AVCOL_TRC_BT709;
-    codec_context->colorspace = AVCOL_SPC_BT709;
+    //codec_context->color_range = AVCOL_RANGE_MPEG;
+    //codec_context->color_primaries = AVCOL_PRI_BT709;
+    //codec_context->color_trc = AVCOL_TRC_BT709;
+    //codec_context->colorspace = AVCOL_SPC_BT709;
     //codec_context->chroma_sample_location = AVCHROMA_LOC_CENTER;
     if(codec->id == AV_CODEC_ID_HEVC)
         codec_context->codec_tag = MKTAG('h', 'v', 'c', '1');
diff --git a/src/overclock.c b/src/overclock.c
index 7c0faad..9160a04 100644
--- a/src/overclock.c
+++ b/src/overclock.c
@@ -262,10 +262,12 @@ bool gsr_overclock_start(gsr_overclock *self) {
     }
     */
 
+    XSync(self->xnvctrl.display, False);
     return true;
 }
 
 void gsr_overclock_stop(gsr_overclock *self) {
     xnvctrl_set_attribute_offset(&self->xnvctrl, self->num_performance_levels, 0, NVCTRL_ATTRIB_GPU_MEM_TRANSFER_RATE);
     //xnvctrl_set_attribute_offset(&self->xnvctrl, self->num_performance_levels, 0, NVCTRL_GPU_NVCLOCK);
+    XSync(self->xnvctrl.display, False);
 }