Hi John, On Tue, Jun 21, 2022 at 12:00 PM John Klug <John.Klug@xxxxxxxxxxxxx> wrote: > > I am using 5.4.199 currently with bluez 5.64 on an arm 32. The same problem occurs in earlier versions and kernels. > > In bluetoothctl after the issue occurs the "show" command always says: > Discovering: yes > > And no scan data follows, even though we have many devices. > > I have tried turning on duplicate data with bluetoothctl. > > I see (manually typed in): > [bluetooth]# scan on > SetDiscoveryFilter success > [bluetooth]# scan off > Failed to stop discovery: org.bluez.Error.InProgress > [bluetooth]# scan on > Failed to start discovery: org.bluez.Error.InProgress > [bluetooth]# scan off > Failed to stop discovery: org.bluez.Error.InProgress > [bluetooth]# scan on > Failed to start discovery: org.bluez.Error.InProgress > [bluetooth]# scan off > Failed to stop discovery: org.bluez.Error.InProgress > Failed to start discovery: org.freedesktop.DBus.Error.NoReply > > gatttool can still connect and retrieve data. > > btmon shows no activty except from gatttool, and none from scan > > Here is a snippet of debug from bluetoothd: > > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > agent.c:agent_disconnect() Agent :1.1113 disconnected > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > agent.c:remove_default_agent() Default agent cleared > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:set_mode() sending set mode command for index 0 > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > agent.c:agent_destroy() agent :1.1113 > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > agent.c:agent_unref() 0x13285c8: ref=3D0 > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:discovery_disconnect() owner :1.1113 > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:discovery_remove() owner :1.1113 > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:discovery_free() 0x1321050 > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:update_discovery_filter() > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:discovery_filter_to_mgmt_cp() > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:trigger_start_discovery() > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:cancel_passive_scanning() > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:start_discovery_timeout() > Jun 21 13:33:30 ecc8 daemon.debug bluetoothd[32170]: ../bluez-5.64/src/= > adapter.c:start_discovery_timeout() adapter->current_discovery_filter > > Do you have any suggestions for further research into this problem? Don't use gatttool, which has been deprecated, instead use bluetoothctl (menu gatt) for GATT operations. > John Klug -- Luiz Augusto von Dentz
