They aren't compatible.
Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
---
drivers/gpu/drm/radeon/radeon_display.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_display.c
b/drivers/gpu/drm/radeon/radeon_display.c
index 8c987c9..127a395 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -1151,6 +1151,7 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
/* fix up for overscan on hdmi */
if (ASIC_IS_AVIVO(rdev) &&
+ (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) &&
((radeon_encoder->underscan_type == UNDERSCAN_ON) ||
((radeon_encoder->underscan_type ==
UNDERSCAN_AUTO) &&
drm_detect_hdmi_monitor(radeon_connector->edid) &&
--
1.7.1.1
