Frequent system wakeups in standby

[CiNcH83]

When pressing the power button on the remote, the BRAVIA first goes into a shallow sleep state in which only the panel is turned off. The processor keeps running for up to two hours until it finally enters deep sleep from which it wakes up every 1-3 minutes though. Here is a typical power conumption curve after switching the BRAVIA off at 20:00:

(Power consumption has been measured/recorded with an EDiMAX SP-2101W and FHEM software.)

After diving deeper into the system, it turned out that several RTC timers seem to be responsible for the wakeups. These are the top alarms within ~12 hours of standby:

  Top Alarms:
	+58s59ms running, 3 wakeups, 3 alarms: u0a18:com.google.android.gms
  	*walarm*:com.google.android.intent.action.GCM_RECONNECT
	+47s872ms running, 1 wakeups, 1 alarms: u0a7:com.android.providers.calendar
  	*walarm*:com.android.providers.calendar.intent.CalendarProvider2
	+42s338ms running, 2 wakeups, 2 alarms: u0a3:com.google.android.apps.mediashell
  	*walarm*:com.google.android.apps.mediashell.ACTION_RECOMMEND
	+19s598ms running, 0 wakeups, 303 alarms: 1000:android
  	*alarm*:android.intent.action.TIME_TICK
	+15s156ms running, 0 wakeups, 280 alarms: u0a18:com.google.android.gms
  	*alarm*:com.google.android.gms/.lockbox.LockboxAlarmReceiver
	+7s166ms running, 0 wakeups, 13 alarms: u0a112:com.sony.dtv.seconddispsetting
  	*alarm*:com.sony.dtv.seconddispsetting/.function.RegistrationIdUpdateReceiver
	+5s864ms running, 114 wakeups, 114 alarms: u0a18:com.google.android.gms
  	*walarm*:com.google.android.gms.gcm.HEARTBEAT_ALARM
	+4s526ms running, 0 wakeups, 28 alarms: 1000:android
  	*alarm*:com.android.server.action.NETWORK_STATS_POLL
	+4s349ms running, 421 wakeups, 421 alarms: 1000:android
  	*walarm*:*job.delay*
	+1s866ms running, 0 wakeups, 2 alarms: u0a51:com.sony.dtv.timers
  	*alarm*:com.sony.dtv.timers.action.IDLE_TV_STANDBY_NOTIFY_PERFORMED

Most wakeups are caused by Android itself and Google mobile services.

Those wakeups also power the USB ports (causing a connected HDD to spin up/down or bias lighting to turn on/off all the time) and perform a handshake on the HDMI ports which might turn on connected devices or cause interruptions on devices connected via the same AVR due to TV re-detection.

[Dode123]

Still a problem. Causes my soundbar to turn on all the time, when connected with HDMI eARC and using CEC.

[LeScooter]

I've recently purchased a TV LED Backlight by Govee, and I believe my issue relates to this report. The LED strip connects to my Sony Bravia TV via the back USB, and will frequently flash on/off every 2-3 minutes, whether or not the TV has been turned off via the remote.

Hope this issue can be fixed, asap 👍 Thanks!

[steveday72]

With a small amplifier & speakers connected I often hear it click every couple of minutes when supposedly in standby.

This prevents my connected Jamo subwoofer from ever switching off!

(The subwoofer has an auto-off, but the intermittent clicks keep it awake. )