diff --git a/kvmd/apps/kvmd/switch/proto.py b/kvmd/apps/kvmd/switch/proto.py
index d4f43f84..43da118f 100644
--- a/kvmd/apps/kvmd/switch/proto.py
+++ b/kvmd/apps/kvmd/switch/proto.py
@@ -94,6 +94,7 @@ class UnitFlags:
     changing_busy: bool
     flashing_busy: bool
     has_downlink:  bool
+    has_hpd:       bool
 
 
 @dataclasses.dataclass(frozen=True)
@@ -137,6 +138,7 @@ class UnitState(Unpackable):  # pylint: disable=too-many-instance-attributes
                 changing_busy=bool(flags & 0x80),
                 flashing_busy=bool(flags & 0x40),
                 has_downlink=bool(flags & 0x02),
+                has_hpd=bool(flags & 0x04),
             ),
             ch=ch,
             beacons=cls.__make_flags6(beacons),
diff --git a/kvmd/apps/kvmd/switch/state.py b/kvmd/apps/kvmd/switch/state.py
index e49d0062..5b06db0a 100644
--- a/kvmd/apps/kvmd/switch/state.py
+++ b/kvmd/apps/kvmd/switch/state.py
@@ -49,7 +49,7 @@ class _UnitInfo:
 
 # =====
 class StateCache:  # pylint: disable=too-many-instance-attributes
-    __FW_VERSION = 5
+    __FW_VERSION = 6
 
     __FULL    = 0xFFFF
     __SUMMARY = 0x01
diff --git a/switch/switch.uf2 b/switch/switch.uf2
index c3f37491..c6581ab9 100644
Binary files a/switch/switch.uf2 and b/switch/switch.uf2 differ
diff --git a/testenv/linters/vulture-wl.py b/testenv/linters/vulture-wl.py
index 32cfdf88..3f37e4ac 100644
--- a/testenv/linters/vulture-wl.py
+++ b/testenv/linters/vulture-wl.py
@@ -67,6 +67,7 @@ Nak.BUSY
 Nak.NO_DOWNLINK
 Nak.DOWNLINK_OVERFLOW
 UnitFlags.flashing_busy
+UnitFlags.has_hpd
 StateCache.get_port_names
 StateCache.get_atx_cp_delays
 StateCache.get_atx_cpl_delays