i7-1260p laptop external HDMI issue

Continuation of issue #6342 (closed) and related to #5531 (closed)

With drm-tip kernel as of 2022-12-19, suspend issues were fixed by this patch set: https://patchwork.freedesktop.org/series/110693/

However, HDMI issues were not addressed. Comment from the patch: "The one thing that doesn't work is HDMI port B that aliases with the second bogus eDP in the VBT, but fixing that mess is going to take a lot more work."

Following diff is a workaround:

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 55544d484318..d6f257f8fd14 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -2708,7 +2708,7 @@ static void parse_ddi_port(struct intel_bios_encoder_data *devdata)
                drm_dbg_kms(&i915->drm,
                            "More than one child device for port %c in VBT, using the first.\n",
                            port_name(port));
-               return;
+               //return;
        }
 
        sanitize_device_type(devdata, port);