This bug was fixed in the package pulseaudio -
1:15.99.1+dfsg1-1ubuntu2.1
---------------
pulseaudio (1:15.99.1+dfsg1-1ubuntu2.1) jammy; urgency=medium
[ Kai-Heng Feng ]
* d/p/0018-bluetooth-Amend-writeout-to-send-more-initial-frames.patch
(LP: #2007331)
-- Kai-Heng Feng <kai.heng.f...@canonical.com> Thu, 16 Feb 2023
10:19:55 +0800
** Changed in: pulseaudio (Ubuntu Jammy)
Status: Fix Committed => Fix Released
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Packages, which is subscribed to linux-oem-6.1 in Ubuntu.
https://bugs.launchpad.net/bugs/2007331
Title:
Fix HFP mSBC support on Realtek Bluetooth USB controller
Status in HWE Next:
New
Status in linux-oem-6.0 package in Ubuntu:
Invalid
Status in linux-oem-6.1 package in Ubuntu:
Invalid
Status in pulseaudio package in Ubuntu:
Fix Released
Status in linux-oem-6.0 source package in Jammy:
Fix Released
Status in linux-oem-6.1 source package in Jammy:
Fix Released
Status in pulseaudio source package in Jammy:
Fix Released
Status in linux-oem-6.0 source package in Kinetic:
Invalid
Status in linux-oem-6.1 source package in Kinetic:
Invalid
Status in pulseaudio source package in Kinetic:
Fix Released
Status in linux-oem-6.0 source package in Lunar:
Invalid
Status in linux-oem-6.1 source package in Lunar:
Invalid
Status in pulseaudio source package in Lunar:
Fix Released
Bug description:
[Impact]
When a BT headset is connected Realtek BT USB controller, HFP profile can't
play or record sound when mSBC codec is used.
[Fix]
At Linux kernel side, add a Realtek specific quirk to support mSBC.
At PulseAudio side, send more data frames until the connected device
sends response.
[Test]
Connect different headsets to the said controller, HFP can play and record
sounds now.
Also verified A2DP profile is unaffected.
[Where problems could occur]
The kernel part is Realtek specific, so the regression risk is very limited.
The pulseaudio side only affects HFP profile, since the codeflow only
changes when a mic is present.
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