On some GEN9 platforms, slowly unplugging (wiggling) the HDMI cable makes the kernel to believe the HDMI display is still connected. This is because the HDMI DDC lines are disconnected a little bit later after the hot-plug interrupt triggered thus an immediate edid fetch can be made. Use digital port live states to authorize the edid read. v2: Fix the formatting issue v3: Use digital port states to authorize the edid read Cc: Jani Nikula <jani.nikula@xxxxxxxxx> Cc: Chris Chiu <chiu@xxxxxxxxxxxx> Signed-off-by: Guang Bai <guang.bai@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_hdmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index e2c6a2b3e8f2..8cf7c78b8cdd 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1929,7 +1929,7 @@ intel_hdmi_detect(struct drm_connector *connector, bool force) intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS); - if (IS_ICELAKE(dev_priv) && + if ((IS_ICELAKE(dev_priv) || IS_GEN9_BC(dev_priv)) && !intel_digital_port_connected(encoder)) goto out; -- 2.17.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
