[Q] AVRCP in sleep mode - Android Q&A, Help & Troubleshooting

Hi guys!
I have a problem with my headset and new Star x920 phone.My headset is A2DP with AVRCP buttons. There is no problems when screen is swithed on. But when phone has gone sleep and I try to play/pause track noothing happens. If I try to switch to next or previous track it works fine.
I tried to debug this with ADB. I look to logcat output and see that key codes arrives in phone in both modes. But when phone is sleep mode there is no reaction on that key codes.
Also I inspected key layout file /system/usr/keylayout/AVRCP.kl and WAKE option is present on desired keys.
So I don't know what to do now to fix my problem. Can anyone help me? Thank you!

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Device
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Operating System
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i got a general Android problem. As long as my screen is turned on, i can skip tracks with the controls on my bluetooth earbuds, does not matter if screen is locked or unlocked. But as soon as the screen is turned off, the controls stop working.
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