as noted in the Debian bug, gdm needs pulseaudio for the accessibility screen reader etc. So it won't be suitable to just disable pulseaudio completely. I suppose there needs to be some way to transition the bluetooth connection to the user after login.
Can you file this bug upstream on the GNOME bug tracker? ** Bug watch added: Debian Bug tracker #805414 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805414 ** Also affects: gdm3 (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805414 Importance: Unknown Status: Unknown ** Changed in: gdm3 (Ubuntu) Status: New => Triaged ** Changed in: gdm3 (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1528099 Title: pulseaudio bluetooth bug Status in gdm3 package in Ubuntu: Triaged Status in pulseaudio package in Ubuntu: New Status in gdm3 package in Debian: Unknown Bug description: I switched from Xfce using Lightdm to Gnome-Shell using gdm3 I noticed my bluetooth headset stopped working after couple hours of google searching I found out its because there was or is 2 copies of pulseaudio running one copy was running as my normal logged in user the other was gdm3 when I took steps to prevent gdm3 from starting a copy of pulseaudio by chmod'ing the pulseaudio binary to only allow my normal user my bluetooth headset started working again I was able to connect it and become the audio sink ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: gdm 3.18.2-1ubuntu1 ProcVersionSignature: Ubuntu 4.3.0-2.11-generic 4.3.0 Uname: Linux 4.3.0-2-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.19.3-0ubuntu2 Architecture: amd64 CurrentDesktop: GNOME Date: Sun Dec 20 20:49:05 2015 PackageArchitecture: all SourcePackage: gdm3 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1528099/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp