commit d5fec4ca7af9241d0c2ae17df40d0fb1c18c74a0
Author: Sjoerd Simons <sjoerd@luon.net>
Date:   Sun Nov 16 23:15:50 2014 +0100

    Alsa: Correct port availability with multiple jacks
    
    In case there are two independent jacks for one port (e.g. Dock
    Headphone Jack and Headphone Jack), the availability ends up being
    incorrect if the first one was _NO (not plugged) and the second gets
    _YES (plugged). Also pulse complains about the state being inconsistent
    which isn't true.
    
    Fix this by preferring more precise states (yes/no) over unknown and yes
    over others. However in case a plugged jack makes the port unavailable
    let that overrule everything else.

diff --git a/src/modules/alsa/module-alsa-card.c b/src/modules/alsa/module-alsa-card.c
index ed332e0..fc9a772 100644
--- a/src/modules/alsa/module-alsa-card.c
+++ b/src/modules/alsa/module-alsa-card.c
@@ -335,15 +335,26 @@ static void report_port_state(pa_device_port *p, struct userdata *u) {
 
         cpa = jack->plugged_in ? jack->state_plugged : jack->state_unplugged;
 
-        /* "Yes" and "no" trumphs "unknown" if we have more than one jack */
-        if (cpa == PA_AVAILABLE_UNKNOWN)
-            continue;
+        if (cpa == PA_AVAILABLE_NO) {
+          /* If a plugged-in jack causes the availability to go to NO, it
+           * should override all other availability information (like a
+           * blacklist) so set and bail */
+          if (jack->plugged_in) {
+            pa = cpa;
+            break;
+          }
 
-        if ((cpa == PA_AVAILABLE_NO && pa == PA_AVAILABLE_YES) ||
-            (pa == PA_AVAILABLE_NO && cpa == PA_AVAILABLE_YES))
-            pa_log_warn("Availability of port '%s' is inconsistent!", p->name);
-        else
+          /* If the current availablility is unknown go the more precise no,
+           * but otherwise don't change state */
+          if (pa == PA_AVAILABLE_UNKNOWN)
             pa = cpa;
+        } else if (cpa == PA_AVAILABLE_YES) {
+          /* Output is available through at least one jack, so go to that
+           * level of availability. We still need to continue iterating through
+           * the jacks in case a jack is plugged in that forces the state to no
+           */
+          pa = cpa;
+        }
     }
 
     pa_device_port_set_available(p, pa);