Hi Nagesh, On Wed, May 12, 2021 at 6:46 AM nagesh shamnur <nagesh.shamnur@xxxxxxxxx> wrote: > > Hi All, > I am unable to establish a ble connection between my Raspberrypi4B > and Laptop. Configuration is as below: > > Laptop: Ubuntu-20.04.2 LTS, bluez version: 5.53 Raspberrypi4B: > Ubuntu-21.04 bluez version: 5.56 > > Bluetoothctl logs @Raspberrypi4B: as attached > > btmon logs @Raspberrypi4B: as attached > > I see in the btmon output, always connection is terminated but no > reason is present which specifies the cause for it. > > Initially I was using Ubuntu 20.04.2 LTS on my Raspberrypi4b which I > later upgraded to 21.04 but still no luck. Couple of posts pointed to > bug in bluez which was pretty old and i am assuming would have already > fixed in the bluez 5.56 version. > > Can someone help me in resolving this issue? There doesn't seem to be any L2CAP channels left which means no profile was able to connect which causes the ACL Link to drop since there is no use for it. -- Luiz Augusto von Dentz
