Bluetooth Headphones stuttering, skipping, breaking up. (other bt speaker and earbud work)

[teamspoad]

PROBLEM: Headphones stutter or skip in LM19

OS: Linux Mint 19 with cinnamon (dual boot w/win10 on higher end sony vaio laptop - 64bit - 8gbram)
HEADPHONES: Galacticon HP (bt with aux, phone support, A2DP) - Cheap greek brand,

WHY I KNOW IT'S A LM19 BLUETOOTH ISSUE:
---I've returned the headphones and results are the same.
---No issues with this machine using via aux cable.
---I've had them working temporarily on LM19 (numerous tutorial settings changes), but after reboot or bt reconnection, the problem persists, even if attempting same settings change that I thought may have fixed it the 1st time.
---They work on the same machine, with same hardware on Windows 10 (no tweeking needed)
---They work with my android phone
---Bose bt speaker (A2DP) and bt earpiece (HSP) both work flawlessly with same LM19 (no tweeking).

TRIED and WORKED TEMPORARILY:

---https://freedompenguin.com/articles/how ... hones-fix/ THIS INVOLVES USING "BLUEMAN" worked 1st time. couldn't recreate with reinstall.
---changing setting in pulse audio control (from a2dp to hsp, to off and back on, to different settings and button pushings)
---1st attemp from tutorial which I can't remember. point being, they have worked at least 3 times, and continued to fail.

TRIED and didn't work:
---Turning off and back on with bluetooth manager
---Reinstalling pulseaudio

WOULD LIKE TO TRY (from research) but can't figure out how to change settings:
---realtime
---pacmd priority 0.
---adjusting latency, but I don't have a clue about how or why

NOTE: This has been tested with installed LM19 and a linux live LM19. Similar results in all tests.

--- --inxi -Frxzc0 -- ------------inxi -Frxzc0 ------------------ -inxi -Frxzc0 ------------------- -inxi -Frxzc0-- ------------------- ---inxi -Frxzc0--- -
-------------- ------------------- -------------------------- ---------------------- -------------------- ------------------- -------------------- ----------------------

System: Host: okmint Kernel: 4.15.0-42-generic x86_64 bits: 64 gcc: 7.3.0
Desktop: Cinnamon 3.8.9 (Gtk 3.22.30-1ubuntu1)
Distro: Linux Mint 19 Tara
Machine: Device: laptop System: Sony product: SVE14A27CXH v: C60BJFNY serial: N/A
Mobo: Sony model: VAIO serial: N/A
UEFI: American Megatrends v: R0210V5 date: 07/01/2015
Battery BAT0: charge: 27.8 Wh 100.1% condition: 27.8/62.6 Wh (44%)
model: Sony status: Full
CPU: Quad core Intel Core i7-3632QM (-MT-MCP-)
arch: Ivy Bridge rev.9 cache: 6144 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 17559
clock speeds: max: 3200 MHz 1: 1876 MHz 2: 1889 MHz 3: 1570 MHz
4: 2029 MHz 5: 2030 MHz 6: 1600 MHz 7: 1811 MHz 8: 1927 MHz
Graphics: Card-1: Intel 3rd Gen Core processor Graphics Controller
bus-ID: 00:02.0
Card-2: Advanced Micro Devices [AMD/ATI] Thames [Radeon HD 7500M/7600M Series]
bus-ID: 01:00.0
Display Server: x11 (X.Org 1.19.6 )
drivers: modesetting,ati,radeon (unloaded: fbdev,vesa)
Resolution: 1600x900@60.06hz
OpenGL: renderer: Mesa DRI Intel Ivybridge Mobile
version: 4.2 Mesa 18.0.5 Direct Render: Yes
Audio: Card Intel 7 Series/C216 Family High Def. Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture v: k4.15.0-42-generic
Network: Card-1: Intel Wireless 7260 driver: iwlwifi bus-ID: 02:00.0
IF: wlp2s0 state: up mac: <filter>
Card-2: Realtek RTL8111/8168/8411 PCIE Gigabit Ethernet Controller
driver: r8169 v: 2.3LK-NAPI port: d000 bus-ID: 04:00.0
IF: enp4s0 state: down mac: <filter>
Drives: HDD Total Size: 1000.2GB (51.0% used)
ID-1: /dev/sda model: ST1000LM024_HN size: 1000.2GB
ID-2: /dev/mmcblk0 model: N/A size: 256.4GB
Partition: ID-1: / size: 183G used: 159G (92%) fs: ext4 dev: /dev/sda7
ID-2: swap-1 size: 8.40GB used: 0.00GB (0%)
fs: swap dev: /dev/sda9
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 67.0C mobo: N/A gpu: N/A
Fan Speeds (in rpm): cpu: N/A
Repos: ----I erased for space purposes, do you need them???----
Info: Processes: 285 Uptime: 42 min Memory: 2179.7/7848.9MB
Init: systemd runlevel: 5 Gcc sys: 7.3.0
Client: Shell (bash 4.4.191) inxi: 2.3.56


---------------------------end of system list------------------------
start of pacmd list-sinks ---------------------------- ----latency adjusted by me ----------------

used by: 1
linked by: 5
fixed latency: 49,00 ms
card: 1 <bluez_card.AA_D8_48_9F_C6_59>
module: 25
properties:
bluetooth.protocol = "a2dp_sink"
device.description = "Galacticon HP"
device.string = "AA:D8:48:9F:C6:59"
device.api = "bluez"
device.class = "sound"
device.bus = "bluetooth"
device.form_factor = "headset"
bluez.path = "/org/bluez/hci0/dev_AA_D8_48_9F_C6_59"
bluez.class = "0x240404"
bluez.alias = "Galacticon HP"
device.icon_name = "audio-headset-bluetooth"
device.intended_roles = "phone"
ports:
headset-output: Headset (priority 0, latency offset 30000 usec, available: yes)
properties:

active port: <headset-output>

[JeremyB]

I would try

Code: Select all

echo "options iwlwifi bt_coex_active=N" | sudo tee /etc/modprobe.d/iwl-bt.conf
sudo modprobe -r iwlwifi
sudo modprobe iwlwifi

See if it is any better

[bobcov]

Incase it is useful, I just want to throw in my experience in a different situation with the same results. Headphones were working perfectly until the laptop power off ungracefully, without a shutdown. After that, stuttering for 6 seconds, followed by 9 seconds clear, then 6 seconds stuttering...repeating. I suspected it was related to the sudden power loss, but could not find the cause so I used Timeshift to go back to the day before and the problem was resolved. So, for those who had perfectly working bluetooth which then inexplicably degraded, try rolling back your system to a kinder, gentler era with Timeshift.