[Bug 204589] New: Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

[Bug 204589] New: Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=204589

            Bug ID: 204589
           Summary: Bluetooth touchpad (Apple Magic Trackpad) disconnects
                    every few minutes
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.2.0-050200rc7-generic #201906300430 (and older)
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Bluetooth
          Assignee: linux-bluetooth@vger.kernel.org
          Reporter: marcpalaus@hotmail.com
        Regression: No

Hello.

I initially reported this bug to Ubuntu's bugtracking system, and from there I
was redirected here.

This is the initial bug report:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834085

Basically the bug is described in the bug report above, together with several
log files. I have an Apple Magic Trackpad 2 connected via bluetooth which
constantly disconnects and reconnects after a few secons, and I don't think it
has to do with the bluetooth module in my computer, as other bluetooth devices
work just fine.

I have experienced this issue in kernels v4.15.0-58-generic, v5.1.14 and
v5.2-rc6.

Tell me if you need more information I should provide.

Thanks in advance.

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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heavy@ungoverned.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |heavy@ungoverned.org

--- Comment #6 from heavy@ungoverned.org ---
I had been experiencing this same issue with a Magic Trackpad 2 on the past
several releases of Fedora. My workaround was simply to plug in my trackpad
with a USB cable. After upgrading to Fedora 35, I tried using bluetooth again
and it seemed to be working fine for a week or so, but it is back to
disconnecting regularly, so I've switched back to a wired approach.

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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--- Comment #7 from Andri Möll (andri@dot.ee) ---
I know this bug is about the Magic Trackpad, but just in case they're related,
I'm experiencing the same drops with multiple ca 2010–2012 Apple Magic Mouse
products.

This with two different computers, kernel versions and BT chipsets:
- Arch Linux LTS v5.15.38-1-lts and Intel Corp. Wireless-AC 3168 Bluetooth
- Fedora v5.17.13-300.fc36.x86_64 and Intel Corp. AX201 Bluetooth
(linux-firmware @ 20220610)

There's definitely something reproducible. The common suggestion to disable
eSCO does not help.

I also noticed another possibly related issue:
https://bugzilla.kernel.org/show_bug.cgi?id=103631

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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--- Comment #8 from heavy@ungoverned.org ---
And it is still happening for me on Fedora 36. Same experience as before, where
it seemed to be working better initially after upgrading, but after some
time/updates it is back to being very spotty. I'm not sure if this is my
imagination or not, but I always get my hopes up that it is fixed, only to have
them dashed.

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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queeup (queeup@zoho.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |queeup@zoho.com

--- Comment #9 from queeup (queeup@zoho.com) ---
Created attachment 303579
  --> https://bugzilla.kernel.org/attachment.cgi?id=303579&action=edit
my systems dmesg.log

This is fedora silverblue 36 dmesg. Last lines have some disconnect info

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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--- Comment #10 from queeup (queeup@zoho.com) ---
Created attachment 303580
  --> https://bugzilla.kernel.org/attachment.cgi?id=303580&action=edit
journalctl -fu bluetooth > journalctl-bluetooth.log

print out of fedora silverblue 36 bluetooth service debug

journalctl -fu bluetooth > journalctl-bluetooth.log

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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--- Comment #11 from queeup (queeup@zoho.com) ---
Created attachment 303581
  --> https://bugzilla.kernel.org/attachment.cgi?id=303581&action=edit
btmon -p 7 -i hci0 -w hcidump

This is BTSnoop file. Collected disconnection errors.

file hcidump 
hcidump: BTSnoop version 1

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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--- Comment #12 from queeup (queeup@zoho.com) ---
```
$ lspci -nnk | grep 0280 -A3
03:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX200 [8086:2723]
(rev 1a)
        Subsystem: Intel Corporation Wi-Fi 6 AX200NGW [8086:0084]
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi


$ lsusb -d 8087:
Bus 001 Device 004: ID 8087:0029 Intel Corp. AX200 Bluetooth


$ bluetoothctl info
Device 84:FC:FE:E0:A5:F0 (public)
        Alias: Apple Magic Trackpad
        Class: 0x00002594
        Icon: input-tablet
        Paired: yes
        Bonded: yes
        Trusted: yes
        Blocked: no
        Connected: yes
        WakeAllowed: yes
        LegacyPairing: yes
        UUID: Human Interface Device... (00001124-0000-1000-8000-00805f9b34fb)
        UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
        Modalias: usb:v05ACp030Ed0160


$ uname -a
Linux fedora 5.19.6-200.fc36.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Aug 31 17:58:15
UTC 2022 x86_64 x86_64 x86_64 GNU/Linux


$ cat /etc/os-release 
NAME="Fedora Linux"
VERSION="36.20220902.0 (Silverblue)"
ID=fedora
VERSION_ID=36
VERSION_CODENAME=""
PLATFORM_ID="platform:f36"
PRETTY_NAME="Fedora Linux 36.20220902.0 (Silverblue)"
ANSI_COLOR="0;38;2;60;110;180"
LOGO=fedora-logo-icon
CPE_NAME="cpe:/o:fedoraproject:fedora:36"
HOME_URL="https://fedoraproject.org/"
DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora-silverblue/"
SUPPORT_URL="https://ask.fedoraproject.org/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_BUGZILLA_PRODUCT="Fedora"
REDHAT_BUGZILLA_PRODUCT_VERSION=36
REDHAT_SUPPORT_PRODUCT="Fedora"
REDHAT_SUPPORT_PRODUCT_VERSION=36
PRIVACY_POLICY_URL="https://fedoraproject.org/wiki/Legal:PrivacyPolicy"
VARIANT="Silverblue"
VARIANT_ID=silverblue
OSTREE_VERSION='36.20220902.0'


$ rpm -qa linux-firmware iwlax2xx-firmware bluez
bluez-5.65-1.fc36.x86_64
iwlax2xx-firmware-20220815-138.fc36.noarch
linux-firmware-20220815-138.fc36.noarch


$ dmesg | grep firmware
[    3.059539] i915 0000:00:02.0: [drm] Finished loading DMC firmware
i915/kbl_dmc_ver1_04.bin (v1.4)
[    7.048785] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[    7.101611] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi
[    7.181529] iwlwifi 0000:03:00.0: Direct firmware load for
iwlwifi-cc-a0-72.ucode failed with error -2
[    7.242302] iwlwifi 0000:03:00.0: loaded firmware version 71.058653f6.0
cc-a0-71.ucode op_mode iwlmvm
[    8.865213] Bluetooth: hci0: Waiting for firmware download to complete


$ dmesg | grep Bluetooth
[    6.876698] Bluetooth: Core ver 2.22
[    6.876723] Bluetooth: HCI device and connection manager initialized
[    6.876727] Bluetooth: HCI socket layer initialized
[    6.876728] Bluetooth: L2CAP socket layer initialized
[    6.876734] Bluetooth: SCO socket layer initialized
[    7.047790] Bluetooth: hci0: Bootloader revision 0.3 build 0 week 24 2017
[    7.048779] Bluetooth: hci0: Device revision is 1
[    7.048781] Bluetooth: hci0: Secure boot is enabled
[    7.048782] Bluetooth: hci0: OTP lock is enabled
[    7.048783] Bluetooth: hci0: API lock is enabled
[    7.048784] Bluetooth: hci0: Debug lock is disabled
[    7.048785] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[    7.101611] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi
[    7.101745] Bluetooth: hci0: Boot Address: 0x24800
[    7.101747] Bluetooth: hci0: Firmware Version: 20-28.22
[    8.865213] Bluetooth: hci0: Waiting for firmware download to complete
[    8.865758] Bluetooth: hci0: Firmware loaded in 1722796 usecs
[    8.865806] Bluetooth: hci0: Waiting for device to boot
[    8.880761] Bluetooth: hci0: Device booted in 14623 usecs
[    8.880768] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
[    8.883561] Bluetooth: hci0: Found Intel DDC parameters:
intel/ibt-20-1-3.ddc
[    8.885766] Bluetooth: hci0: Applying Intel DDC parameters completed
[    8.886770] Bluetooth: hci0: Firmware revision 0.3 build 20 week 28 2022
[    8.948322] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    8.948325] Bluetooth: BNEP filters: protocol multicast
[    8.948330] Bluetooth: BNEP socket layer initialized
[   10.495877] Bluetooth: RFCOMM TTY layer initialized
[   10.495885] Bluetooth: RFCOMM socket layer initialized
[   10.495932] Bluetooth: RFCOMM ver 1.11


$ dmesg | grep iwlwifi
[    7.081904] iwlwifi 0000:03:00.0: enabling device (0000 -> 0002)
[    7.181529] iwlwifi 0000:03:00.0: Direct firmware load for
iwlwifi-cc-a0-72.ucode failed with error -2
[    7.242004] iwlwifi 0000:03:00.0: api flags index 2 larger than supported by
driver
[    7.242021] iwlwifi 0000:03:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version:
89.3.35.37
[    7.242302] iwlwifi 0000:03:00.0: loaded firmware version 71.058653f6.0
cc-a0-71.ucode op_mode iwlmvm
[    7.535978] iwlwifi 0000:03:00.0: Detected Intel(R) Wi-Fi 6 AX200 160MHz,
REV=0x340
[    7.692651] iwlwifi 0000:03:00.0: Detected RF HR B3, rfid=0x10a100
[    7.765022] iwlwifi 0000:03:00.0: base HW address: 8c:c6:81:9d:1c:5a
[    7.784984] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0


$ dmesg | grep Bluetooth
[    6.876698] Bluetooth: Core ver 2.22
[    6.876723] Bluetooth: HCI device and connection manager initialized
[    6.876727] Bluetooth: HCI socket layer initialized
[    6.876728] Bluetooth: L2CAP socket layer initialized
[    6.876734] Bluetooth: SCO socket layer initialized
[    7.047790] Bluetooth: hci0: Bootloader revision 0.3 build 0 week 24 2017
[    7.048779] Bluetooth: hci0: Device revision is 1
[    7.048781] Bluetooth: hci0: Secure boot is enabled
[    7.048782] Bluetooth: hci0: OTP lock is enabled
[    7.048783] Bluetooth: hci0: API lock is enabled
[    7.048784] Bluetooth: hci0: Debug lock is disabled
[    7.048785] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[    7.101611] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi
[    7.101745] Bluetooth: hci0: Boot Address: 0x24800
[    7.101747] Bluetooth: hci0: Firmware Version: 20-28.22
[    8.865213] Bluetooth: hci0: Waiting for firmware download to complete
[    8.865758] Bluetooth: hci0: Firmware loaded in 1722796 usecs
[    8.865806] Bluetooth: hci0: Waiting for device to boot
[    8.880761] Bluetooth: hci0: Device booted in 14623 usecs
[    8.880768] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
[    8.883561] Bluetooth: hci0: Found Intel DDC parameters:
intel/ibt-20-1-3.ddc
[    8.885766] Bluetooth: hci0: Applying Intel DDC parameters completed
[    8.886770] Bluetooth: hci0: Firmware revision 0.3 build 20 week 28 2022
[    8.948322] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    8.948325] Bluetooth: BNEP filters: protocol multicast
[    8.948330] Bluetooth: BNEP socket layer initialized
[   10.495877] Bluetooth: RFCOMM TTY layer initialized
[   10.495885] Bluetooth: RFCOMM socket layer initialized
[   10.495932] Bluetooth: RFCOMM ver 1.11
```

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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--- Comment #13 from scherbakov_al (scherbakov.al@gmail.com) ---
I have the same problem on ubuntu 23.04.
My report: https://pastebin.com/3A9EXusp

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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--- Comment #14 from scherbakov_al (scherbakov.al@gmail.com) ---
New error messages when communication is lost with Magic Trackpad:
I booted Ubuntu 23.04(kernel 6.2.0) from a flash drive - the same error:
https://pastebin.com/5KtUjCHQ
I booted from Fedor's(kernel 6.2.9) flash drive - error:
https://pastebin.com/4LJC7NJQ
When using Fedora, communication breaks also occur.

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--- Comment #15 from scherbakov_al (scherbakov.al@gmail.com) ---
I found this answer from Vudentz on github :

Looks like it is a link layer issue as the connection just times out when we
attempt to exit sniff mode:

HCI Event: Disconnect Complete (0x05) plen 4 #18605 [hci0] 358.578948
Status: Success (0x00)
Handle: 256
Reason: Connection Timeout (0x08)

Perhaps the device doesn't like that we are exitting sniff mode on our own or
something like that.

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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attila lendvai (attila@lendvai.name) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |attila@lendvai.name

--- Comment #16 from attila lendvai (attila@lendvai.name) ---
i'm also affected by this for years, and it makes the touchpad rather annoying
to use.

it's been happening on different laptops, but my current setup is:

Thinkpad Carbon X1 gen6
Linux 6.4.16
x86_64
running Guix

$ lspci -nnk | grep 0280 -A3
02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275
[8086:24fd] (rev 78)
        Subsystem: Intel Corporation Dual Band Wireless-AC 8265 [8086:0010]
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi

$ lsusb -d 8087:
Bus 001 Device 015: ID 8087:0a2b Intel Corp. Bluetooth wireless interface

$ bluetoothctl info
Device 28:37:37:2D:43:AD (public)
        Alias: 28-37-37-2D-43-AD
        Class: 0x00002594
        Icon: input-tablet
        Paired: yes
        Bonded: yes
        Trusted: yes
        Blocked: no
        Connected: yes
        WakeAllowed: yes
        LegacyPairing: no
        UUID: Human Interface Device... (00001124-0000-1000-8000-00805f9b34fb)
        UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
        Modalias: usb:v05ACp030Ed0160

dmesg at every dis-/reconnect:

[364555.042486] input: Apple Wireless Trackpad as
/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:512/0005:05AC:030E.009C/input/input166
[364555.042732] magicmouse 0005:05AC:030E.009C: input,hidraw5: BLUETOOTH HID
v1.60 Mouse [Apple Wireless Trackpad] on 84:fd:d1:8d:7a:e7
[366309.985739] magicmouse 0005:05AC:030E.009D: unknown main item tag 0x0
[366309.985887] input: Apple Wireless Trackpad as
/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:256/0005:05AC:030E.009D/input/input167
[366309.986256] magicmouse 0005:05AC:030E.009D: input,hidraw5: BLUETOOTH HID
v1.60 Mouse [Apple Wireless Trackpad] on 84:fd:d1:8d:7a:e7
[366513.879351] magicmouse 0005:05AC:030E.009E: unknown main item tag 0x0
[366513.879540] input: Apple Wireless Trackpad as
/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/bluetooth/hci0/hci0:256/0005:05AC:030E.009E/input/input168

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[Bug 204589] Bluetooth touchpad (Apple Magic Trackpad) disconnects every few minutes

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--- Comment #17 from queeup (queeup@zoho.com) ---
Happy to report, my problem solved with Gnome 45.1 & Fedora 39. No disconnect
or freeze with apple trackpad.



Fedora 39 Silverblue
Intel AX200 bluetooth
Apple Magic Trackpad V1 (05AC:030E)

```
$ uname -r
6.6.3-200.fc39.x86_64

$ rpm -qa iwlwifi*
iwlwifi-dvm-firmware-20231111-1.fc39.noarch
iwlwifi-mvm-firmware-20231111-1.fc39.noarch

```

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--- Comment #18 from scherbakov_al (scherbakov.al@gmail.com) ---
I tested it. The trackpad worked for more than an hour without the same
disconnections every 10 minutes that we had before. But an hour later it
disconnected and could not restore the connection. Only restarting bluetooth
helped. This happened several times. The problem has not yet been resolved.
Fedora 39.

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--- Comment #19 from heavy@ungoverned.org ---
Unfortunately, I think the issue is still not resolved. The touchpad still
disconnects for me on a fully updated Fedora 39 with Gnome 45.2.

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Lee Fleming (LeeFlemingster@protonmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |LeeFlemingster@protonmail.c
                   |                            |om

--- Comment #20 from Lee Fleming (LeeFlemingster@protonmail.com) ---
I have been able to reproduce this problem.

OpenSuse Tumbleweed.
Framework AMD 13-inch laptop.

I've only seen the magic trackpad 2 disconnect under a specific condition.

I have an LG Xboom bluetooth speaker. When the speaker is on, connected to
bluetooth and connected to USB to charge, then when I stop moving the mouse
pointer for 5 seconds the trackpad disconnects.

This only happens when the speaker is connected to the USB A port (front left).
If connected to the USB C port (or physically disconnected entirely) then the
problem goes away.

I have not tried swaping the USB modules on this laptop. Not all the ports are
made equal. The speaker was connected to port 2 in this diagram.
https://knowledgebase.frame.work/en_us/expansion-card-functionality-on-framework-laptop-13-amd-ryzen-7040-series-SkrVx7gAh

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--- Comment #21 from Lee Fleming (LeeFlemingster@protonmail.com) ---
I did some more testing. It doesn't matter if the speaker is attached to USB A
or USB C. The problem is seen when the speaker is attached to USB 3.2 and not
seen when attached to USB 4 (see diagram in last post).

I did the following testing.
Speaker connected to port 2 USB A. Trackpad disconnects.
Speaker connected to port 2 USB C. Trackpad disconnects.
Speaker connected to port 1 USB C. No disconnect.
Speaker connected to port 3 USB C. No disconnect.
Speaker connected to port 4 USB C. Trackpad disconnects.

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