LEAP 15.2 My desktop PC as bluetooth speaker

Hi!
I am trying to connect my Samsung tv to desktop PC. I would like to hear sound from TV on my dektop speakers via bluetooth. This works from my phone but not from Samsung TV.
bluetoothctl see my tv ,paring is ok, connect is ok, but TV cant "see" my PC.

[CHG] Device C4:57:6E:83:C9:A4 Connected: no
[CHG] Device C4:57:6E:83:C9:A4 Connected: yes
[[TV]SamsungUHD]# info C4:57:6E:83:C9:A4
Device C4:57:6E:83:C9:A4 (public)
Name: [TV]SamsungUHD
Alias: [TV]SamsungUHD
Class: 0x0008043c
Icon: audio-card
Paired: yes
Trusted: yes
Blocked: no
Connected: yes
LegacyPairing: no
UUID: Audio Source (0000110a-0000-1000-8000-00805f9b34fb)
UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
Modalias: bluetooth:v04E8p8080d0000
[CHG] Device C4:57:6E:83:C9:A4 Connected: no

After few seconds samsung id disconnected

from messages:
plasmashell[2230]: org.kde.bluez: PendingCall Error: "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus sec
urity policy blocked the reply, the reply timeout expired, or the network connection was broken."

Can someone tell me how to configure bluez to be seen as bluetooth speaker of bluetooth headphone for samsung TV?