On Thu, May 22, 2025 at 04:55:22PM +0200, Frédéric Danis wrote: > Hi Andrew, > > On 30/04/2025 15:14, Andrew Sayers wrote: > > > Obexd is usually run as a user service, and can exhibit surprising > > behaviour if two users are logged in at the same time. > > > > Unregister profiles when the user is detected to be off-seat. > > > > It may be impossible to detect whether a user is on-seat in some cases. > > For example, a version of obexd compiled with systemd support might be > > run outside of a systemd environment. Warn and leave services > > registered if that happens. > > > > Obexd can be run as a system service, in which case this check makes no > > sense. Disable this check when called with `--system-bus`. > > > > Obexd can also be run by a user that does not have an active session. > > For example, someone could use `ssh` to access the system. There might > > be a use case where someone needs Bluetooth access but can't log in with > > a keyboard, or there might be a security issue with doing so. This isn't > > handled explicitly by this patch, but a future patch could add support > > by calling `logind_set(FALSE)` in the same way as is currently done > > with `--system-bus`. > > > > Unregister profiles by closing private connections instead of sending > > UnregisterProfile on the shared connection. Pipewire has apparently > > found the latter to cause long shutdown delays, because bluetoothd > > may be shutting down and unable to handle this message. > > > > Based in large part on the wireplumber code mentioned by Pauli Virtanen: > > https://gitlab.freedesktop.org/pipewire/wireplumber/-/blob/master/modules/module-logind.c#L52 > > > > Other services are likely to need similar functionality, > > so I have created a gist to demonstrate the basic technique: > > https://gist.github.com/andrew-sayers/1c4a24f86a9a4c1b1e38d109f1bd1d1e > > > > Suggested-by: Pauli Virtanen <pav@xxxxxx> > > Signed-off-by: Andrew Sayers <kernel.org@xxxxxxxxxxxxxxx> > > I have a problem to connect PBAP profile using obexctl, using upstream > bluetoothd and obexd built on Ubuntu 24.04, the org.bluez.obex.PhonebookAccess1 > interface doesn't appear. > > After bisecting I found that this commit cause this issue. Hmm, my guess is that seat detection isn't working properly. Could you try this gist? You should get "Active: 1" when it starts, "Active: 0" when you switch away from your current screen, and "Active: 1" when you switch back. https://gist.github.com/andrew-sayers/1c4a24f86a9a4c1b1e38d109f1bd1d1e > > -- > Frédéric Danis > Senior Software Engineer > > Collabora Ltd. > Platinum Building, St John's Innovation Park, Cambridge CB4 0DS, United Kingdom > Registered in England & Wales, no. 5513718 > >
