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-rw-r--r--src/i830_hdmi.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/i830_hdmi.c b/src/i830_hdmi.c
index 77a51c6c..931a55c3 100644
--- a/src/i830_hdmi.c
+++ b/src/i830_hdmi.c
@@ -88,7 +88,9 @@ i830_hdmi_mode_set(xf86OutputPtr output, DisplayModePtr mode,
sdvox = SDVO_ENCODING_HDMI |
SDVO_BORDER_ENABLE |
- SDVO_NULL_PACKETS_DURING_VSYNC;
+ SDVO_NULL_PACKETS_DURING_VSYNC |
+ SDVO_VSYNC_ACTIVE_HIGH |
+ SDVO_HSYNC_ACTIVE_HIGH;
if (intel_crtc->pipe == 1)
sdvox |= SDVO_PIPE_B_SELECT;