The screenshot in comment #1 seems to show the headset is in A2DP mode.
This means, per the original Bluetooth specification, it can only output
and not input.
To enable input (microphone), you need to change the profile from A2DP
to HSP/HFP. Although that makes the output quality low (bug 1838151),
it's the only option that supports microphones at the moment.
Please change the profile for the headset to HSP/HFP and then retest the
microphone.
** Changed in: bluez (Ubuntu)
Status: Confirmed => Incomplete
** Changed in: pulseaudio (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1872641
Title:
Microphone doesn't work with Sony WH-CH700N bluetooth headphone
Status in bluez package in Ubuntu:
Incomplete
Status in pulseaudio package in Ubuntu:
Incomplete
Bug description:
I can choose the headphone as an input device, but it doesn't work.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: bluez 5.53-0ubuntu3
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu26
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 14 08:41:32 2020
InstallationDate: Installed on 2020-02-26 (47 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200225.4)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: To be filled by O.E.M. To be filled by O.E.M.
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=hu_HU.UTF-8
SHELL=/usr/bin/zsh
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic
root=UUID=1dc32c86-d135-46fa-a68a-1cd7fcf4f31e ro quiet splash vt.handoff=7
SourcePackage: bluez
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/26/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2603
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: M5A97 R2.0
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr2603:bd06/26/2015:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97R2.0:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: To be filled by O.E.M.
dmi.product.sku: SKU
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: To be filled by O.E.M.
hciconfig:
hci0: Type: Primary Bus: USB
BD Address: 00:15:83:32:FA:A8 ACL MTU: 510:8 SCO MTU: 48:10
UP RUNNING
RX bytes:156081 acl:67 sco:2629 events:2771 errors:0
TX bytes:1351383 acl:2903 sco:2625 commands:88 errors:0
rfkill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
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