[RESPONDED][FW 13 AMD 7840U][Linux] Keyboard, Magic Trackpad and Headset HSP/HFP causes Bluetooth lags

Framework Laptop 13 Linux
1

Hi everyone,
I’ve received my FW13 AMD on December ‘23, and I’m happy with it.
I’ve only have one “very strange” issue.

My system:
FW 13 AMD 7840U - 32 GB mem, 500 GB SSD SN770
Ubuntu 22.04 LTS - kernel 6.5.0-1011-oem #12-Ubuntu SMP PREEMPT_DYNAMIC

Audio:

  • Server Name : PulseAudio (on PipeWire 0.3.48)
  • server version : 15.0.0

Bluetooth devices connected:

  • Logitech MX Keys Mini
  • Apple Magic Trackpad 2 (A1535)
  • Bose Headphones NC700

Now, here’s the weird problem:
I’m experiencing, heavy lags on the following devices:

  • MX Keys Mini (typing single keystrokes gives: “ssssss llll ooooooo wwwww ” )
    and
  • Magic Trackpad (heavy cursor stuttering and slow delayed responses)

ONLY WHEN my Bose NC 700 is on “Headset Head Unit (HSP/HFP, codec mSBC)” configuration (which means using Headphone and its embedded microphone on a Google Meet for instance).

As soon as I revert my Headphone to “High Fidelity Playback (AD2P Sink, codec SBC)”, Keyboard and trackpad revert to working fine, with no lags.

The thing is: I have a Dell XPS 13 9305 (for work), with the same OS configuration, and I have absolutely no issue with the same devices connected and configured.

So, if anyone has any clue? :pray:

Below, here’s what I have found inspecting logs:

dmesg:
[ 8723.837294] input: Bose NC 700 HP (AVRCP) as /devices/virtual/input/input22
[ 8731.073393] input: Bose NC 700 HP (AVRCP) as /devices/virtual/input/input23
[ 8732.102669] input: MX Keys Mini Keyboard as /devices/virtual/misc/uhid/0005:046D:B369.0009/input/input24
[ 8732.102968] hid-generic 0005:046D:B369.0009: input,hidraw3: BLUETOOTH HID v0.07 Keyboard [MX Keys Mini] on a8:3b:76:72:e3:10
[ 8743.068798] input: Bose NC 700 HP (AVRCP) as /devices/virtual/input/input26
[ 8776.549599] magicmouse 0005:004C:0265.000A: unknown main item tag 0x0
[ 8776.549947] input: Apple Inc. Magic Trackpad 2 as /devices/pci0000:00/0000:00:08.1/0000:c1:00.3/usb1/1-5/1-5:1.0/bluetooth/hci0/hci0:50/0005:004C:0265.000A/input/input27
[ 8776.550419] magicmouse 0005:004C:0265.000A: input,hidraw4: BLUETOOTH HID v1.92 Mouse [Magic Trackpad] on a8:3b:76:72:e3:10
[ 8788.504873] Bluetooth: hci0: ACL packet for unknown connection handle 3837

journalctl -b:
janv. 21 16:35:35 FW13 kernel: Bluetooth: hci0: ACL packet for unknown connection handle 3837
janv. 21 16:36:30 FW13 ubuntu-report[2077]: level=error msg=“data were not delivered successfully to metrics server, retrying in 1800s”
janv. 21 16:37:11 FW13 kernel: Bluetooth: hci0: ACL packet for unknown connection handle 3837
janv. 21 16:37:20 FW13 slack.desktop[5099]: [01/21/24, 16:37:20:202] info: [CHECK-FOR-OLD-CHANNEL] (T108ZKPMF) Within limit [external DMs]: 0
janv. 21 16:37:20 FW13 slack.desktop[5099]: [01/21/24, 16:37:20:203] info: [CHECK-FOR-OLD-CHANNEL] (T108ZKPMF) Within limit [internal DMs]: 11
janv. 21 16:37:20 FW13 slack.desktop[5099]: [01/21/24, 16:37:20:203] info: [CHECK-FOR-OLD-CHANNEL] (T108ZKPMF) Within limit [app DMs]: 5
janv. 21 16:37:20 FW13 slack.desktop[5099]: [01/21/24, 16:37:20:203] info: [CHECK-FOR-OLD-CHANNEL] (T108ZKPMF) Within limit [record channels]: 0
janv. 21 16:37:30 FW13 wireplumber[2078]: unknown AT+IPHONEACCEV key:2 value:0
janv. 21 16:38:42 FW13 kernel: Bluetooth: hci0: ACL packet for unknown connection handle 3837
janv. 21 16:39:01 FW13 CRON[65426]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
janv. 21 16:39:01 FW13 CRON[65427]: (root) CMD ( [ -x /usr/lib/php/sessionclean ] && if [ ! -d /run/systemd/system ]; then /usr/lib/php/sessionclean; fi)
janv. 21 16:39:01 FW13 CRON[65426]: pam_unix(cron:session): session closed for user root
janv. 21 16:39:01 FW13 systemd[1]: Starting Clean php session files…
janv. 21 16:39:01 FW13 systemd[1]: phpsessionclean.service: Deactivated successfully.
janv. 21 16:39:01 FW13 systemd[1]: Finished Clean php session files.
janv. 21 16:39:25 FW13 wireplumber[2078]: unknown AT+IPHONEACCEV key:2 value:0
janv. 21 16:40:16 FW13 kernel: Bluetooth: hci0: ACL packet for unknown connection handle 3837
janv. 21 16:40:34 FW13 slack.desktop[5099]: [01/21/24, 16:40:34:227] info: [DND_V2] (T108ZKPMF) Checking for changes in DND status for the following members: U01MWEJ87LH,U03UK2FBCAX,U02NS19QK1T,U02>
janv. 21 16:40:34 FW13 slack.desktop[5099]: [01/21/24, 16:40:34:228] info: [DND_V2] (T108ZKPMF) Will check for changes in DND status again in 5 minutes
janv. 21 16:41:14 FW13 upowerd[1748]: energy 63,251280 bigger than full 63,173880
janv. 21 16:41:20 FW13 wireplumber[2078]: unknown AT+IPHONEACCEV key:2 value:0
janv. 21 16:41:49 FW13 kernel: Bluetooth: hci0: ACL packet for unknown connection handle 3837

2

I’d guess that a driver difference between the Framework and the Dell is what’s behind the issue. Is there a noticeable quality difference in the setting that does not work and the one that does on the Framework? Presumably the driver eventually will improve, but that could be a while.

3

Hi, thanks for the answer.
On the FW13, with the “settings that work”, the issue is that I cannot use the headphone’s microphone, which is way better at handling / filtering external noises thant the integrated laptop mic.

4

Got it. That’s unfortunate. Are you able to boot a live usb of another distro (I know that Ubuntu is supported, just wondering), or in particular, windows? If it works properly in a different OS then that would point to a driver issue. Have you been able to find anything on Bose forums or reddit about the issue? I wish that I had better ideas for you. Best of luck getting the headset working properly.

5

I’ve juste tested on a totally new install of Windows 11 on the Framework13 AMD (with the Framework offcial drivers bundle installed):
Everything is working fine, with a Google meet session activated and using Bose headphones NC 700 microphone.
So, no hardware issue on the Framework 13 AMD.
It effectively pointing towards a AMD 7040 linux kernel drivers

Can someone tells me how to declare properly this issue to AMD?

1 Like
6

Hi @FARVACQUE_Arnaud, welcome to the community :slight_smile:

Btw, have you also tried with fedora live just to make sure behavior is consistent? and you’re seeing same error on dmesg?

9

Hi, thanks for your help.
Just tried Fedora 39 live, and it exhibits the same issue as in Ubuntu 22.04 LTS

10

dmesg shows:
Bluetooth: hci0: ACL packet for unknown connection handle 3837

(sorry for the multiple posts, I get many 403 errors trying to put logs content)

11

I’m seeing the same issue on linux 6.9.7. As soon as I enable my airpods pro mic the bluetooth connection struggles.