From: Egbert Eich <eich at suse.de> To disable previously enabled HPD IRQs we need to reset them and set the enabled ones individually. Signed-off-by: Egbert Eich <eich at suse.de> --- drivers/gpu/drm/i915/i915_irq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 5408a3a..a3f1ac4 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2117,9 +2117,11 @@ static void ibx_hpd_irq_setup(struct drm_device *dev) u32 hotplug; if (HAS_PCH_IBX(dev)) { + mask &= ~SDE_HOTPLUG_MASK; list_for_each_entry(intel_encoder, &mode_config->encoder_list, base.head) mask |= hpd_ibx[intel_encoder->hpd_pin]; } else { + mask &= ~SDE_HOTPLUG_MASK_CPT; list_for_each_entry(intel_encoder, &mode_config->encoder_list, base.head) mask |= hpd_cpt[intel_encoder->hpd_pin]; } -- 1.8.1.4