MT7915 does not sent any beacon packets on IBSS mode.

Greetings,

I would like to use adhoc mode to build connection between 2 devices with MT7915 <5G> devices.
Those can't establish the connection.
I have observed Probe Request packets in sniffer on Mac OS, but i was not find any beacon packets.

I found the change mt76: mt7615: mt7622: fix ibss and meshpoint, and follow this change to modified on mt7915.
But it still doesn't sent any beacon flames out.

I also have tested ibss with master and openwrt-21.02 branch. But it still the same.
Is there some ressource somewhere that would help me?
Thanks.

command

root@OpenWrt:~# iw wlan1 set type ibss
root@OpenWrt:~# ifconfig wlan1 up
root@OpenWrt:~# iw wlan1 ibss join smxt 5745 80MHZ

log

[  176.175384] phy1-ibss0: Trigger new scan to find an IBSS to join
[  178.811928] phy1-ibss0: Trigger new scan to find an IBSS to join
[  181.168773] phy1-ibss0: Creating new IBSS network, BSSID 86:20:3d:9d:84:ea
[  181.393144] IPv6: ADDRCONF(NETDEV_CHANGE): phy1-ibss0: link becomes ready

The issue names no source file or test; begin by comparing the MT7915 IBSS behavior with the linked mt7615/mt7622 fix. Reproduce the iw commands and inspect whether beacon packets appear alongside the reported kernel log. Done means MT7915 emits IBSS beacon packets and the two devices can establish a connection.