The G35/G45/SandyBridge chipsets expect vertical timings in frame units,
whereas the DRM subsystem uses field units internally for interlaced modes.
Signed-off-by: Peter Ross <pross at xvid.org>
---
drivers/gpu/drm/i915/intel_display.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2a3f707..ae62f5f 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5316,6 +5316,14 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
adjusted_mode->crtc_vblank_end -= 1;
adjusted_mode->crtc_vsync_end -= 1;
adjusted_mode->crtc_vsync_start -= 1;
+ if (INTEL_INFO(dev)->gen >= 4) {
+ adjusted_mode->crtc_vdisplay *= 2;
+ adjusted_mode->crtc_vtotal *= 2;
+ adjusted_mode->crtc_vblank_start *= 2;
+ adjusted_mode->crtc_vblank_end *= 2;
+ adjusted_mode->crtc_vsync_end *= 2;
+ adjusted_mode->crtc_vsync_start *= 2;
+ }
} else
pipeconf &= ~PIPECONF_INTERLACE_MASK; /* progressive */
--
1.7.5.4
-- Peter
(A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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