Sony Bravia: User Control "Power" (0x40) on source select suspends an already-on device

[DesertRec]

Claude has helped me find a solution/workaround.

libCEC 8.1.6 (client version 4.0.0, firmware 5)
Adapter: Amlogic AOCEC
CoreELEC nightly 20260810 (clean install), Kodi 22
Ugoos AM9 Pro (S905X5) → miniDSP Tide16 (HDMI switch/processor) → Sony A90J
Device type: playback device. Physical address auto-detected correctly as 3.1.0.0

Description

Selecting the Kodi box's input on the TV causes the box to suspend instead of activate.

The Sony sends User Control Pressed: Power (0x40) — a toggle — followed ~275 ms later by User Control Pressed: Power On (0x6D). The toggle reaches Kodi as key 196, which the default keymap binds to ShutDown(), and the box begins suspending before the explicit power-on arrives.

Log — default keymap (box suspends)

16:32:33.104  >> 04:44:40
16:32:33.104  >> TV (0) -> Playback 1 (4): user control pressed (44)
16:32:33.105  SetCurrentButton power (40) D:0ms
16:32:33.105  key pressed: power (40) current(ff) duration(0)
16:32:33.105  PushCecKeypress - received key c4 duration 0
16:32:33.105  << Playback 1 (4) -> broadcast (F): inactive source
16:32:33.112  HandleKey: 196 (0xc4, obc59) pressed, window 10004, action is ShutDown()
16:32:33.138  LogindUPowerSyscall: Received PrepareForSleep with arg 1
16:32:33.138  OnSleep: Running sleep jobs
16:32:33.282  >> TV (0) -> Playback 1 (4): user control release (45)
16:32:33.379  >> 04:44:6d
16:32:33.379  >> TV (0) -> Playback 1 (4): user control pressed (44)
16:32:33.379  SetCurrentButton power on (6d) D:0ms
16:32:33.379  making Playback 1 (4) the active source
16:32:33.443  << Playback 1 (4) -> broadcast (F): active source (3100)
16:32:33.455  failed to make 'Playback 1' the active source. will retry later

Workaround — suppressing key 196 resolves it completely

/storage/.kodi/userdata/keymaps/cec-power.xml:

<keymap>
  <global>
    <universalremote>
      <obc59>Noop</obc59>
    </universalremote>
    <remote>
      <power>Noop</power>
    </remote>
  </global>
</keymap>

Log — with keymap (box activates correctly)

16:54:36.637  Changed key power (40) D:0ms cur:ff
16:54:36.637  PushCecKeypress - received key c4 duration 0
16:54:36.637  << Playback 1 (4) -> broadcast (F): inactive source
16:54:36.647  HandleKey: 196 (0xc4, obc59) pressed, window 10000, action is Noop
16:54:36.815  >> TV (0) -> Playback 1 (4): user control release (45)
16:54:36.912  >> 04:44:6d
16:54:36.912  >> TV (0) -> Playback 1 (4): user control pressed (44)
16:54:36.912  SetCurrentButton power on (6d) D:0ms
16:54:36.912  making Playback 1 (4) the active source
16:54:36.912  marking TV (0) as inactive source
16:54:36.912  >> source activated: Playback 1 (4)
16:54:36.976  << Playback 1 (4) -> broadcast (F): active source (3100)

Zero OnSleep events across repeated switching after the change.

Note

In both logs, libCEC broadcasts inactive source the moment 0x40 arrives — before Kodi has dispatched anything. So the toggle is being given power-off semantics internally regardless of current power state. The keymap only suppresses the consequence, not the interpretation. A power toggle arriving at a device that is already on arguably shouldn't be treated as off — the user has just asked to watch that device.

This behaviour started after 8.1.1 (the button-press timing change). Offered as correlation only — I haven't tested a pre-8.1.1 build to confirm.

Unrelated question, same version window: the peripheral settings filename changed from cec_CEC_Adapter.xml to cec__dev_aocec.xml. Is this the name going forward?

[spin-lock]

Can confirm the same issue with similar setup.
After I switched out to a different input and switched back to CoreELEC device —which still on—it goes to sleep.

CoreELEC 20260810 (Ugoos SK1) -> Denon X3800H AVR -> Sony Bravia K-85XR70