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

[bugzilla-daemon@kernel.org]

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

attila lendvai (attila@lendvai.name) changed:

           What    |Removed                     |Added
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                 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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