Questions about Bluetooth

[weibinchi]

Hello

       My current Linux BSP version is 3.14.38.

       I has been ported  pulseaudio and bluez5 to imx6dl.

       I tried to execute the command “pulseaudio --system --realtime &” to start pulseaudio. But the error is as follows:

root@imx6qsabresd:/tmp/usr/lib# pulseaudio --system --realtime
W: [pulseaudio] main.c: Running in system mode, but --disallow-exit not set.
W: [pulseaudio] main.c: Running in system mode, but --disallow-module-loading not set.
N: [pulseaudio] main.c: Running in system mode, forcibly disabling SHM mode.
W: [pulseaudio] main.c: OK, so you are running PA in system mode. Please note that you most likely shouldn't be doing that.
W: [pulseaudio] main.c: If you do it nonetheless then it's your own fault if things don't work as expected.
W: [pulseaudio] main.c: Please read http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/WhatIsWrongWithSystemWide/ for an explanation why system mode is usually a bad idea.
Inconsistency detected by ld.so: dl-open.c: 678: _dl_open: Assertion `_dl_debug_initialize (0, args.nsid)->r_state == RT_CONSISTENT' failed!
root@imx6qsabresd:/tmp/usr/lib#

      I execute the command “pulseaudio --vvvv”, the phenomenon is as follows：

root@imx6qsabresd:/tmp/usr/lib# pulseaudio -vvvv
W: [pulseaudio] main.c: This program is not intended to be run as root (unless --system is specified).
D: [pulseaudio] core-rtclock.c: Timer slack is set to 50 us.
D: [pulseaudio] core-util.c: setpriority() worked.
I: [pulseaudio] core-util.c: Successfully gained nice level -11.
I: [pulseaudio] main.c: This is PulseAudio 8.0
D: [pulseaudio] main.c: Compilation host: arm-poky-linux-gnueabi
D: [pulseaudio] main.c: Compilation CFLAGS: -O2 -pipe -g -feliminate-unused-debug-types -fdebug-prefix-map=/home/user/linyicai/linux/fsl-release-bsp/build-wayland/tmp/work/cortexa9hf-neon-mx6qdl-poky-linux-gnueabi/pulseaudio/8.0-r0=/usr/src/debug/pulseaudio/8.0-r0 -fdebug-prefix-map=/home/user/linyicai/linux/fsl-release-bsp/build-wayland/tmp/sysroots/x86_64-linux= -fdebug-prefix-map=/home/user/linyicai/linux/fsl-release-bsp/build-wayland/tmp/sysroots/imx6qsabresd= -Wall -W -Wextra -Wno-long-long -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing -Wwrite-strings -Wno-unused-parameter -ffast-math -fno-common -fdiagnostics-show-option -fdiagnostics-color=auto
D: [pulseaudio] main.c: Running on host: Linux armv7l 3.14.38-6UL_ga-svn11837 #12 SMP PREEMPT Wed Oct 16 14:33:15 CST 2019
D: [pulseaudio] main.c: Found 2 CPUs.
I: [pulseaudio] main.c: Page size is 4096 bytes
D: [pulseaudio] main.c: Compiled with Valgrind support: no
D: [pulseaudio] main.c: Running in valgrind mode: no
D: [pulseaudio] main.c: Running in VM: no
D: [pulseaudio] main.c: Optimized build: yes
D: [pulseaudio] main.c: FASTPATH defined, only fast path asserts disabled.
I: [pulseaudio] main.c: Machine ID is imx6qsabresd.
I: [pulseaudio] main.c: Using runtime directory /home/root/.config/pulse/imx6qsabresd-runtime.
I: [pulseaudio] main.c: Using state directory /home/root/.config/pulse.
I: [pulseaudio] main.c: Using modules directory /usr/lib/pulse-8.0/modules.
I: [pulseaudio] main.c: Running in system mode: no
W: [pulseaudio] pid.c: Stale PID file, overwriting.
I: [pulseaudio] main.c: System supports high resolution timers
D: [pulseaudio] memblock.c: Using shared memory pool with 1024 slots of size 64.0 KiB each, total size is 64.0 MiB, maximum usable slot size is 65496
D: [pulseaudio] memblock.c: Using shared memory pool with 1024 slots of size 64.0 KiB each, total size is 64.0 MiB, maximum usable slot size is 65496
I: [pulseaudio] cpu-arm.c: CPU flags: V6 V7 VFP EDSP NEON VFPV3
I: [pulseaudio] svolume_arm.c: Initialising ARM optimized volume functions.
I: [pulseaudio] sconv_neon.c: Initialising ARM NEON optimized conversions.
I: [pulseaudio] mix_neon.c: Initialising ARM NEON optimized mixing functions.
I: [pulseaudio] remap_neon.c: Initialising ARM NEON optimized remappers.
I: [pulseaudio] module-device-restore.c: Successfully opened database file '/home/root/.config/pulse/imx6qsabresd-device-volumes'.
I: [pulseaudio] module.c: Loaded "module-device-restore" (index: #0; argument: "").
I: [pulseaudio] module-stream-restore.c: Successfully opened database file '/home/root/.config/pulse/imx6qsabresd-stream-volumes'.
D: [pulseaudio] protocol-dbus.c: Interface org.PulseAudio.Ext.StreamRestore1 added for object /org/pulseaudio/stream_restore1
I: [pulseaudio] module.c: Loaded "module-stream-restore" (index: #1; argument: "").
I: [pulseaudio] module-card-restore.c: Successfully opened database file '/home/root/.config/pulse/imx6qsabresd-card-database'.
I: [pulseaudio] module.c: Loaded "module-card-restore" (index: #2; argument: "").
I: [pulseaudio] module.c: Loaded "module-augment-properties" (index: #3; argument: "").
I: [pulseaudio] module.c: Loaded "module-switch-on-port-available" (index: #4; argument: "").
D: [pulseaudio] module.c: Checking for existence of '/usr/lib/pulse-8.0/modules/module-udev-detect.so': success
Inconsistency detected by ld.so: dl-open.c: 678: _dl_open: Assertion `_dl_debug_initialize (0, args.nsid)->r_state == RT_CONSISTENT' failed!
root@imx6qsabresd:/tmp/usr/lib#

How to solve this problem?

Thank you!

[igorpadykov]

Hi weibin

one can look at

BCM4343W bluetooth audio PCM driver | Cypress Developer Community 

and use NXP Linux documentation
i.MX Software | NXP 

Best regards
igor
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[weibinchi]

Hello 

       Thank you for your answer.

       Can you analyze the possible causes and give me solutions?

[igorpadykov]

Hi weibin

for detailed analysis and solutions may be suggested to proceed with

extended support of Commercial Support and Engineering Services | NXP 

Best regards
igor

[weibinchi]

Hello igor

        Now， I have another wrong.

        When  I execute the following command：pulseaudio --system. The phenomenon is as follows：

root@imx6qsabresd:/etc# pulseaudio --system --realtime &

28092

root@imx6qsabresd:/etc# W: main.c: Running in system mode, but --disallow-exit not set.

W: main.c: Running in system mode, but --disallow-module-loading not set.

N: main.c: Running in system mode, forcibly disabling SHM mode.

W: main.c: OK, so you are running PA in system mode. Please note that you most likely shouldn't be doing that.

W: main.c: If you do it nonetheless then it's your own fault if things don't work as expected.

W: main.c: Please read http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/WhatIsWrongWithSystemWide/ for an explanation why system mode is usually a bad idea.

E: main.c: Failed to acquire org.pulseaudio.Server: org.freedesktop.DBus.Error.AccessDenied: Connection ":1.25" is not allowed to own the service "org.pulseaudio.Server" due to security policies in the configuration file

E: bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.AccessDenied: Rejected send message, 2 matched rules; type="method_call", sender=":1.25" (uid=100 pid=28092 comm="pulseaudio --system --realtime ") interface="org.freedesktop.DBus.ObjectManager" member="GetManagedObjects" error name="(unset)" requested_reply="0" destination="org.bluez" (uid=0 pid=22025 comm="/usr/libexec/bluetooth/bluetoothd -C ")

       How to solve it?

       Thank you