Hi Nagesh, On Wed, May 12, 2021 at 11:03 AM nagesh shamnur <nagesh.shamnur@xxxxxxxxx> wrote: > > Thanks for the reply. Is there any way i can avoid this problem and make the connection successful? Yes you can register a profile, what were you planning on doing with the connection? Even a serial port profiles would do but one of the side would have to register it. > > On Wed, 12 May 2021 at 23:31, Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx> wrote: >> >> 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 -- Luiz Augusto von Dentz
