We need to get the current hw state so we can compare against the expected state. References: https://bugs.freedesktop.org/show_bug.cgi?id=66444 Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org> --- drivers/gpu/drm/i915/intel_display.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f1eaf8e..6b0013c 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8377,8 +8377,12 @@ check_crtc_state(struct drm_device *dev) base.head) { if (encoder->base.crtc != &crtc->base) continue; - if (encoder->get_config) + if (encoder->get_config && + dev_priv->display.get_clock) { encoder->get_config(encoder, &pipe_config); + dev_priv->display.get_clock(crtc, + &pipe_config); + } } WARN(crtc->active != active, -- 1.7.9.5
