[dumpling] TWS Bluetooth connection triggers phantom Wired Headset event and breaks audio routing

[user32234]

Device Codename

dumpling

LineageOS Version

lineage-22.2

Build Date

20260818

Kernel Version

Linux localhost 4.4.302-perf+ #1 SMP PREEMPT Tue Aug 18 06:03:33 UTC 2026 aarch64 Toybox

Baseband Version

No response

System Modifications

No response

Expected Behavior

Connecting TWS should route audio via Bluetooth (A2DP/LE Audio) without triggering WiredHeadsetManager UEVENTs. The problematic BT stack commits might need a revert for legacy QCOM HALs.

Current Behavior

Recent security patches in packages/modules/Bluetooth (specifically around LE connections/deadlocks) introduced a regression on legacy Qualcomm platforms (MSM8998/SDM660). When connecting TWS Bluetooth earbuds, the Bluetooth stack misbehaves and falsely fires a WiredHeadset plug-in event. This messes up the audio routing entirely, switching the system to a non-existent wired headset and cutting off the audio.

08-24 20:26:46.981 I/Telecom ( 1877): Logging.Events: Non-call EVENT: AUDIO_ROUTE, Entering audio route: AudioRoute[Type=TYPE_EARPIECE, Address=invalid] (active=false): WHC.oADR->CARC.pM_DISCONNECT_WIRED_HEADSET->CARC.pM_EXIT_PENDING_ROUTE@GMs❗                                   
08-24 20:26:46.981 I/Telecom ( 1877): CallAudioRouteController: updateCallAudioState: updating call audio state to [AudioState isMuted: false, route: EARPIECE, supportedRouteMask: EARPIECE, SPEAKER, activeBluetoothDevice: [null], supportedBluetoothDevices: []]: WHC.oADR->CARC.pM_DISCONNECT_WIRED_HEADSET->CARC.pM_EXIT_PENDING_ROUTE@GMs🔒                                                      
08-24 20:26:46.981 I/Telecom ( 1877): CallEndpointController: onCallAudioStateChanged, audioState: [AudioState isMuted: false, route: WIRED_HEADSET, supportedRouteMask: EARPIECE, SPEAKER, activeBluetoothDevice: [null], supportedBluetoothDevices: []] -> [AudioState isMuted: false, route: EARPIECE, supportedRouteMask: EARPIECE, SPEAKER, activeBluetoothDevice: [null], supportedBluetoothDevices: []]: WHC.oADR->CARC.pM_DISCONNECT_WIRED_HEADSET->CARC.pM_EXIT_PENDING_ROUTE@GMs🔒                            
08-24 20:26:47.019 I/Telecom ( 1877): WiredHeadsetManager: ACTION_HEADSET_PLUG event, plugged in: true, : WHC.oADA@GMw❗                                                
08-24 20:26:47.019 I/Telecom ( 1877): CallAudioRouteController: Message received: CONNECT_WIRED_HEADSET=1, arg1=0: WHC.oADA->CARC.pM_CONNECT_WIRED_HEADSET@GMw❗        
08-24 20:26:47.019 I/Telecom ( 1877): AudioRoute$Factory: createRetry; type=TYPE_WIRED_HEADSET, address=null, retryCount=2: WHC.oADA->CARC.pM_CONNECT_WIRED_HEADSET@GMw ❗                                                      
08-24 20:26:47.019 I/Telecom ( 1877): AudioRoute$Factory: type: 1: WHC.oADA->CARC.pM_CONNECT_WIRED_HEADSET@GMw❗
08-24 20:26:47.019 I/Telecom ( 1877): AudioRoute$Factory: type: 2: WHC.oADA->CARC.pM_CONNECT_WIRED_HEADSET@GMw❗
08-24 20:26:47.019 I/Telecom ( 1877): AudioRoute$Factory: type: 3: WHC.oADA->CARC.pM_CONNECT_WIRED_HEADSET@GMw❗
08-24 20:26:47.019 I/Telecom ( 1877): CallAudioRouteController: Enter pending route, origAudioRoute[Type=TYPE_EARPIECE, Address=invalid](active=false), destAudioRoute[Type=TYPE_WIRED_HEADSET, Address=invalid](active=false): WHC.oADA->CARC.pM_CONNECT_WIRED_HEADSET@GMw❗           
08-24 20:26:47.019 I/Telecom ( 1877): AudioRoute: onOrigRouteAsPendingRoute: active (false), type (null): WHC.oADA->CARC.pM_CONNECT_WIRED_HEADSET@GMw❗

Possible Solution

No response

Steps to Reproduce

1. Enable Bluetooth on a legacy Qualcomm device (MSM8998/SDM660).
2. Connect any TWS Bluetooth earbuds via Bluetooth.
3. Observe the audio routing behavior immediately after the connection is established

Confirmation

• I have read the directions at https://wiki.lineageos.org/how-to/bugreport