about four weeks ago (+/- ... don't remember exactly) my rather stable bluetooth experience started to become instable. I'm using bluetooth with my two Air Pods Pro Gen1 and Gen2 which both work fine with my iPhone. They also didn't cause any trouble for the first months on my T14s. But at some point they both (which is why I assume the issue is on the comuter's side) they started to show the following annoying pattern. At first the sound becomes glitchy for a few seconds and recovers. This happens a few time with increasing frequency when suddenly the connection is lost. According to the bluetooth manager the connection is still established, though. This happens with me sitting right in front of the computer. I assume there is some update that caused the trouble. I'm travelling at the moment and cannot cross check with yet another brand of BT earphones. There is also another problem with audio crackling on the internal speakers showing a very similar pattern which might be connected to the bluetooth issues.
I would like to try reinstallation of the relevant components or downgrading to earlier versions of the bluetooth or audio drivers to see if that works. And I wouldn't write this if I wasn't interested in your input. The problem is so nagging at this point that it really isn't fun anymore using earphones on the laptop.
Thanks
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➜ ~ sudo inxi -Fxxxrz
System:
Kernel: 5.15.0-101-generic x86_64 bits: 64 compiler: gcc v: 11.4.0
Desktop: Cinnamon 6.0.4 tk: GTK 3.24.33 wm: muffin dm: LightDM 1.30.0
Distro: Linux Mint 21.3 Virginia base: Ubuntu 22.04 jammy
Machine:
Type: Laptop System: LENOVO product: 20XGS1L002 v: ThinkPad T14s Gen 2a
serial: <filter> Chassis: type: 10 serial: <filter>
Mobo: LENOVO model: 20XGS1L002 v: SDK0T76538 WIN serial: <filter>
UEFI: LENOVO v: R1NET54W (1.24) date: 10/27/2022
Battery:
ID-1: BAT0 charge: 54.3 Wh (96.3%) condition: 56.4/57.0 Wh (99.0%)
volts: 17.0 min: 15.4 model: Celxpert 5B10W51815 type: Li-poly
serial: <filter> status: Discharging cycles: 47
CPU:
Info: 6-core model: AMD Ryzen 5 PRO 5650U with Radeon Graphics bits: 64
type: MT MCP smt: enabled arch: Zen 3 rev: 0 cache: L1: 384 KiB L2: 3 MiB
L3: 16 MiB
Speed (MHz): avg: 1658 high: 2300 min/max: 1600/2300 boost: enabled
volts: 1.2 V ext-clock: 100 MHz cores: 1: 1600 2: 1600 3: 1600 4: 1600
5: 1600 6: 1600 7: 1600 8: 1600 9: 1600 10: 1600 11: 1600 12: 2300
bogomips: 55092
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
Device-1: AMD Cezanne vendor: Lenovo driver: amdgpu v: kernel pcie:
speed: 8 GT/s lanes: 16 ports: active: eDP-1 empty: DP-1,DP-2,HDMI-A-1
bus-ID: 06:00.0 chip-ID: 1002:1638 class-ID: 0300
Device-2: IMC Networks Integrated Camera type: USB driver: uvcvideo
bus-ID: 1-2:2 chip-ID: 13d3:5405 class-ID: fe01 serial: <filter>
Display: server: X.Org v: 1.21.1.4 driver: X: loaded: amdgpu,ati
unloaded: fbdev,modesetting,vesa gpu: amdgpu display-ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2")
s-diag: 582mm (22.9")
Monitor-1: eDP res: 1920x1080 hz: 60 dpi: 158 size: 309x173mm (12.2x6.8")
diag: 354mm (13.9")
OpenGL: renderer: RENOIR (renoir LLVM 15.0.7 DRM 3.42 5.15.0-101-generic)
v: 4.6 Mesa 23.2.1-1ubuntu3.1~22.04.2 direct render: Yes
Audio:
Device-1: AMD Renoir Radeon High Definition Audio vendor: Lenovo
driver: snd_hda_intel v: kernel pcie: speed: 8 GT/s lanes: 16
bus-ID: 06:00.1 chip-ID: 1002:1637 class-ID: 0403
Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor
vendor: Lenovo driver: snd_rn_pci_acp3x v: kernel pcie: speed: 8 GT/s
lanes: 16 bus-ID: 06:00.5 chip-ID: 1022:15e2 class-ID: 0480
Device-3: AMD Family 17h HD Audio vendor: Lenovo driver: snd_hda_intel
v: kernel pcie: speed: 8 GT/s lanes: 16 bus-ID: 06:00.6 chip-ID: 1022:15e3
class-ID: 0403
Sound Server-1: ALSA v: k5.15.0-101-generic running: yes
Sound Server-2: PulseAudio v: 15.99.1 running: yes
Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Lenovo driver: r8169 v: kernel pcie: speed: 2.5 GT/s lanes: 1
port: 2000 bus-ID: 02:00.0 chip-ID: 10ec:8168 class-ID: 0200
IF: enp2s0f0 state: down mac: <filter>
Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel pcie:
speed: 5 GT/s lanes: 1 bus-ID: 03:00.0 chip-ID: 8086:2723 class-ID: 0280
IF: wlp3s0 state: up mac: <filter>
IF-ID-1: ipv6leakintrf0 state: unknown speed: N/A duplex: N/A
mac: <filter>
IF-ID-2: tun0 state: unknown speed: 10 Mbps duplex: full mac: N/A
IF-ID-3: wwan0 state: down mac: N/A
Bluetooth:
Device-1: Intel AX200 Bluetooth type: USB driver: btusb v: 0.8
bus-ID: 5-4:3 chip-ID: 8087:0029 class-ID: e001
Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter>
bt-v: 3.0 lmp-v: 5.2 sub-v: 237e hci-v: 5.2 rev: 237e
Drives:
Local Storage: total: 238.47 GiB lvm-free: 12 MiB used: 72.94 GiB (30.6%)
ID-1: /dev/nvme0n1 vendor: Micron model: MTFDKBA256TFK size: 238.47 GiB
speed: 63.2 Gb/s lanes: 4 type: SSD serial: <filter> rev: 0002V5LN
temp: 29.9 C scheme: GPT
Partition:
ID-1: / size: 230.57 GiB used: 71.72 GiB (31.1%) fs: ext4 dev: /dev/dm-1
mapped: vgmint-root
ID-2: /boot size: 1.61 GiB used: 1.22 GiB (75.7%) fs: ext4
dev: /dev/nvme0n1p2
ID-3: /boot/efi size: 511 MiB used: 6.1 MiB (1.2%) fs: vfat
dev: /dev/nvme0n1p1
Swap:
ID-1: swap-1 type: partition size: 976 MiB used: 0 KiB (0.0%) priority: -2
dev: /dev/dm-2 mapped: vgmint-swap_1
Sensors:
System Temperatures: cpu: 43.0 C mobo: N/A gpu: amdgpu temp: 39.0 C
Fan Speeds (RPM): fan-1: 0
Repos:
Packages: 2771 apt: 2759 flatpak: 12
No active apt repos in: /etc/apt/sources.list
Active apt repos in: /etc/apt/sources.list.d/google-chrome.list
1: deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main
Active apt repos in: /etc/apt/sources.list.d/kdenlive-kdenlive-stable-jammy.list
1: deb [signed-by=/etc/apt/keyrings/kdenlive-kdenlive-stable-jammy.gpg] https://ppa.launchpadcontent.net/kdenlive/kdenlive-stable/ubuntu jammy main
Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
1: deb https://ftp-stud.hs-esslingen.de/pub/Mirrors/packages.linuxmint.com virginia main upstream import backport
2: deb http://ftp-stud.hs-esslingen.de/ubuntu jammy main restricted universe multiverse
3: deb http://ftp-stud.hs-esslingen.de/ubuntu jammy-updates main restricted universe multiverse
4: deb http://ftp-stud.hs-esslingen.de/ubuntu jammy-backports main restricted universe multiverse
5: deb http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
Active apt repos in: /etc/apt/sources.list.d/protonvpn-stable.list
1: deb [arch="all", signed-by=/usr/share/keyrings/protonvpn-stable-archive-keyring.gpg] https://repo.protonvpn.com/debian stable main
Active apt repos in: /etc/apt/sources.list.d/signal-xenial.list
1: deb [arch=amd64 signed-by=/usr/share/keyrings/signal-desktop-keyring.gpg] https://updates.signal.org/desktop/apt xenial main
Active apt repos in: /etc/apt/sources.list.d/spotify.list
1: deb http://repository.spotify.com stable non-free
Active apt repos in: /etc/apt/sources.list.d/swi-prolog-stable-jammy.list
1: deb [signed-by=/etc/apt/keyrings/swi-prolog-stable-jammy.gpg] https://ppa.launchpadcontent.net/swi-prolog/stable/ubuntu jammy main
Active apt repos in: /etc/apt/sources.list.d/vscode.list
1: deb [arch=amd64,arm64,armhf] http://packages.microsoft.com/repos/code stable main
Info:
Processes: 373 Uptime: 14m wakeups: 3632 Memory: 14.45 GiB
used: 3.1 GiB (21.5%) Init: systemd v: 249 runlevel: 5 Compilers:
gcc: 11.4.0 alt: 11/12 Shell: Sudo (sudo) v: 1.9.9 default: Bash v: 5.1.16
running-in: gnome-terminal inxi: 3.3.13
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➜ ~ dmesg | grep -i bluetooth
[ 15.450690] Bluetooth: Core ver 2.22
[ 15.450725] NET: Registered PF_BLUETOOTH protocol family
[ 15.450727] Bluetooth: HCI device and connection manager initialized
[ 15.450733] Bluetooth: HCI socket layer initialized
[ 15.450736] Bluetooth: L2CAP socket layer initialized
[ 15.450741] Bluetooth: SCO socket layer initialized
[ 15.499090] Bluetooth: hci0: Bootloader revision 0.3 build 0 week 24 2017
[ 15.501093] Bluetooth: hci0: Device revision is 1
[ 15.501096] Bluetooth: hci0: Secure boot is enabled
[ 15.501097] Bluetooth: hci0: OTP lock is enabled
[ 15.501098] Bluetooth: hci0: API lock is enabled
[ 15.501098] Bluetooth: hci0: Debug lock is disabled
[ 15.501099] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 15.504108] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi
[ 15.507801] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[ 17.063978] Bluetooth: hci0: Waiting for firmware download to complete
[ 17.064061] Bluetooth: hci0: Firmware loaded in 1523389 usecs
[ 17.064086] Bluetooth: hci0: Waiting for device to boot
[ 17.066320] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 17.066322] Bluetooth: BNEP filters: protocol multicast
[ 17.066328] Bluetooth: BNEP socket layer initialized
[ 17.079092] Bluetooth: hci0: Device booted in 14664 usecs
[ 17.079414] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-20-1-3.ddc
[ 17.085107] Bluetooth: hci0: Applying Intel DDC parameters completed
[ 17.094092] Bluetooth: hci0: Firmware revision 0.3 build 126 week 5 2022
[ 18.816877] Bluetooth: RFCOMM TTY layer initialized
[ 18.816888] Bluetooth: RFCOMM socket layer initialized
[ 18.816895] Bluetooth: RFCOMM ver 1.11
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➜ ~ dmesg | grep -i bluetooth | grep -i firmware
[ 15.501099] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 15.504108] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi
[ 17.063978] Bluetooth: hci0: Waiting for firmware download to complete
[ 17.064061] Bluetooth: hci0: Firmware loaded in 1523389 usecs
[ 17.094092] Bluetooth: hci0: Firmware revision 0.3 build 126 week 5 2022
