I started having this problem today. I'm not on ubuntu I'm on suse tumbleweed.
I'm posting this here because it was the 1st google hit and it might help
someone. I can reproduce this problem.
I have an LG Xboom external bluetooth speaker. My magic trackpad will stop
responding when the speaker is
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-2023-1.fc39.noarch
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)
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
My report: https://pastebin.com/3A9EXusp
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Title:
Bluetooth touchpad (Apple Magic Trackpad) disconnects every few
minutes
Status
There are oddities in the food schedule:
https://ibb.co/28JzH4h
https://ibb.co/6JQtBPj
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Title:
Bluetooth touchpad (Apple Magic
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Title:
Bluetooth touchpad (Apple Magic Trackpad) disconnects every few
minutes
Status in Linux:
Confirmed
Status in linux
I have the same issue. I use generic bluetooth keyboard, Apple trackpad
and bluetooth headphones, 3 devices, I connect all three without
problem, only the Apple trackpad problem. But when I activate google
meet, the apple trackpad disconnects every 10 seconds or less, I have to
disconnect the
I have the same issue with trackpad 1 and hp victus laptop running
ubuntu 22.04.2
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Title:
Bluetooth touchpad (Apple Magic Trackpad)
I notice that the trackpad's power graph is not smooth, but dips. When
there are drawdowns on the chart, then at such a time, trackpad
disconnections are more common. When connected after a break, the
trackpad blinks the connection light.
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Fedora 37 Silverblue and Intel AX200 bluetooth, I have same problem with
Apple Magic Trackpad V1 (05AC:030E)
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Title:
Bluetooth
Continues to happen (2023-01-08) on
Linux paag-elitebook-840g2 5.15.0-57-generic #63-Ubuntu SMP Thu Nov 24
13:43:17 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
A pity this isn't included in the kernel patches Ubuntu applies. It
happens for every since Bluetooth mouse I have tested! Not just on
The same problem with disabling the apple magic trackpad with a
connection to the bluetooth adapter built into the computer. Ubuntu
22.04. But I connected an external dongle. Installed Blueman Bluetooth
Manager. The system wanted to connect to the trackpad via the bluetooth
adapter built into the
This is the only thing that has managed to (semi-)permanently solve the
issue for me:
https://bugzilla.kernel.org/show_bug.cgi?id=103631
I spent many hours recompiling the kernel to get months of blissful
disconnection-free use, only for the patch to be removed after a kernel
update :(
I can't
Hi Guys, I also have the same issue on Lenovo P14s Gen1 internal
Bluetooth adapter Intel AX201.
The trackpad and/or a bluetooth keyboard keeps disconnecting.
Disconnects are more frequent/probable
when I'm using bluetooth headphones (Bose QC 35 II) in headset mode.
I cannot conferm that an usb
Hi folks. Just want to chime in that I also have the same issue on the
22.04 beta with the magic trackpad 1, where it disconnects at random
intervals. I found some old posts around, some dating back to 2015 with
the same issue... no dice with most of their proposed solution.
- Issue persists with
Hi to all!
I can unfortunately confirm this "unknown main item tag 0x0" error also for
Kubuntu 20.04 and kernel 5.11.0-27. The used hardware is an Apple Magic Mouse 2
at an iMac8,1. It should be noted that Kubuntu is running in native (U)EFI
mode, not in legacy CSM Bios-emulation. Maybe this
Same issue on Ubuntu 20.04 5.11.0 with an Apple Magic Trackpad on an AMD
desktop machine. My Apple Bluetooth keyboard works great - no issues
with any disconnections. The Apple Magic Trackpad will glitch typically
when there is some significant CPU load. The glitch will either
disconnect the
exactly the same issue on Ubuntu 20.04 5.8.0-50 on a Lenovo X1 gen8 with
Magic Tracpad 2
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Title:
Bluetooth touchpad (Apple Magic
I'm having the same issues on my Dell Precision laptop with 20.04 lts,
kernel 5.8.0-43.
One thing I've noticed: it seems to happen less frequently with Wayland
than with X.
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I am having the same problem with an Apple Magic Trackpad 2, Ubuntu
20.04 and kernel 5.8.0-41-generic #46~20.04.1-Ubuntu SMP.
[462154.113890] magicmouse 0005:004C:0265.00CE: unknown main item tag 0x0
[462154.114012] input: Apple Inc. Magic Trackpad 2 as
I'm on kernel 5.8.8 and am experiencing what I think is the exact same
issue with my Magic Trackpad 1
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Title:
Bluetooth touchpad
Disabling upower isn't enough -- it will start up again when an app
(such as your browser) requires power management support. You have to
uinstall upower from your system. (Note that this will make some apps,
such as steam, unstable.)
This bug started happening when I switched out my wifi card. I
** Tags added: hwe-bluetooth hwe-touchpad
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Title:
Bluetooth touchpad (Apple Magic Trackpad) disconnects every few
minutes
Status
I can confirm that the problem persists on a clean install of Ubuntu
20.04 LTS (kernel 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30
UTC 2020 x86_64).
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Definitely still seeing this, but over 12 hours later I can immediately
use the devices again in mainline 5.6.3.
dmesg | grep 'magic\|apple'
[68065.162639] apple *:*:*.*: unknown main item tag 0x0
[68065.163407] apple *:*:*.*: input,hidraw5: BLUETOOTH HID v0.50 Keyboard
[satadru’s keyboard] on
Definitely still get the error message, at least right at first connection,
using mainline 5.6.3 on focal beta:
magicmouse *:*:*:*: unknown main item tag 0x0
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I think this is the same issue as
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1385113
has anybody submitted this upstream to the linux-input mailing list yet?
It's definitely happening with 5.4.0-23-lowlatency on focal beta and my
magicmouse trackpad.
I will try with a mainline kernel
Launchpad has imported 1 comments from the remote bug at
https://bugzilla.kernel.org/show_bug.cgi?id=204589.
If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
Ok, can confirm that disabling upower (via the commands in comment #44)
does not help. I suffered another disconnection when the uptime was
close to 4 hours.
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I just suffered three disconnections during the last hour, so it seems
that the problem is still there, and when they happen, it's a matter of
luck.
(And yes, I made sure that btusb.enable_autosuspend=0 was in the
kernel)
[0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-58-generic
Ok, let me share my experience a day later. At more than 7 hours of
being in my computer, I suffered a disconnection. Another one followed
maybe one or two hours later. This is, however, a big improvement over
the past situation, where there was one disconnection every 30 or 40
minutes. so maybe
Hey, adding that parameter to /etc/default/grub seemed to work! I have
not had a single disconnection for more than three hours now.
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Please try adding kernel parameter:
btusb.enable_autosuspend=0
(copied from bug 1801642)
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Title:
Bluetooth touchpad (Apple
You can still do power management using any non-gnome power management
tool. Somewhat annoying indeed, but less so than losing my trackpad
every hour ;-)
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I don't think that's recommended. As I understand it, disabling upower
means to disable the power management for the entire machine :)
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Had the same issue with my Magic Trackpad. After reading this possibly
related bug:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1385113 I decided
to disable upower:
systemctl stop upower
systemctl disable upower
This works around the problem for me.
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** Also affects: linux via
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Importance: Unknown
Status: Unknown
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Ok, I reported the bug in the kernel.org bugtracking system. It's this
one: https://bugzilla.kernel.org/show_bug.cgi?id=204589
(Back in the day I sent an email to that address, but I never received a
response).
** Bug watch added: Linux Kernel Bug Tracker #204589
Please report the bug to the kernel developers at the above address in
comment #40, or at https://bugzilla.kernel.org/. Then let us know the
new bug ID.
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Any news, or any workaround I could try?
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Title:
Bluetooth touchpad (Apple Magic Trackpad) disconnects every few
minutes
Status
Please raise the issue to upstream, i.e. mail to linux-
in...@vger.kernel.org.
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Title:
Bluetooth touchpad (Apple Magic Trackpad)
Hi again, I have been away for a few days. I have been trying now, after
having uninstalled tlp the other day (and making sure it is indeed the
case), and using the kernel 5.2.0-050200rc7-generic #201906300430, I
have experienced the issue at the 13 minute mark.
I have attached the output of the
** No longer affects: tlp (Ubuntu)
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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Title:
Bluetooth touchpad
Yes, I have turned it off an on several times during the day.
But give me a couple of days and I will check (and attach) the
corresponding logs.
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Did you reboot your machine after uninstalling TLP ?
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Title:
Bluetooth touchpad (Apple Magic Trackpad) disconnects every few
I completely uninatalled tlp this morning and I am still experiencing
this issue.
I don't think it has anything to do with it.
(As I mentioned previously, other bluetooth devices work alright, even
with tlp).
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THIS IS NOT A BUG.
This is in TLP's FAQ :
https://linrunner.de/en/tlp/docs/tlp-faq.html#btusb
Please read the documentation, do what it says, confirm that your
problem is fixed, and close the bug as invalid.
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** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Also affects: tlp (Ubuntu)
Importance: Undecided
Status: New
** Changed in: tlp (Ubuntu)
Status: New => Incomplete
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Yes, I was using tlp for power management (it's a laptop). I will try to
disable it and report back.
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Title:
Bluetooth touchpad
It looks like power management might be an issue.
Are you using powertop or 'tlp' to configure power management? If so
then please try undoing your power management settings (or just
uninstalling 'tlp').
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I just tried it. The problem appeared when uptime was 56 minutes. I
attach the output of dmesg in case it helps.
** Attachment added: "dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834085/+attachment/5275914/+files/dmesg.txt
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Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.2-rc7/
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Title:
Bluetooth touchpad (Apple
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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Title:
Bluetooth touchpad (Apple Magic Trackpad) disconnects every
** Attachment added: "dmesg after bootin with kernel parameter
"usbcore.dyndbg=+p""
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834085/+attachment/5274528/+files/dmesg.txt
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Sorry, I forgot to mention that after editing that file you need to run:
sudo update-grub
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Title:
Bluetooth touchpad (Apple
I edited that line in /etc/default/grub so it reads:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.dyndbg=+p"
However, I don't see any changes in dmesg after I reboot:
[0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-52-generic
root=UUID=e5e53ee1-0a10-48ee-8f7c-1d553ecc5607 ro
To add kernel parameters permanently (and not needing the grub menu) you
can add them to /etc/default/grub as part of the
GRUB_CMDLINE_LINUX_DEFAULT line.
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Dammit. What is the correct way of adding it? When booting, at the grub
menu, y selected my Ubuntu entry, and pressed 'e' to edit. Then there
was a series of lines with instructions (I suppose), and I added another
line with 'usbcore.dyndbg=+p'. Then I pressed F10 (if I recall
correctly) to boot.
Kernel parameter wasn't added:
Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-52-generic
root=UUID=e5e53ee1-0a10-48ee-8f7c-1d553ecc5607 ro quiet splash
vt.handoff=1
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I have experienced the issue at least once since I booted the computer.
** Attachment added: "dmesg after bootin with kernel parameter
"usbcore.dyndbg=+p""
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834085/+attachment/5273502/+files/dmesg.txt
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Please boot with kernel parameter "usbcore.dyndbg=+p", reproduce the
issue and attach dmesg.
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Title:
Bluetooth touchpad (Apple
apport information
** Tags added: apport-collected bionic
** Description changed:
I recently got an Apple's Magic Trackpad. I paired it with Ubuntu
18.04.2 LTS and worked out of the box, no special drivers needed.
However, I experience frequent disconnections that last a few seconds
If this does not work for you:
apport-collect 1834085
then instead please run:
apport-cli -u 1834085
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Title:
Bluetooth
Ok, can confirm that the bug also occurs with the kernel v5.2-rc6 (which
booted, despite showing some errors during startup). It appeared after
15 minutes of using it.
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I tried the kernel v5.1.14, and the problem happened twice after 38
minutes, so no changes here.
I also tried installing the kernel v5.2-rc6, but there were several
errors during the installation:
/etc/kernel/header_postinst.d/dkms:
ERROR (dkms apport): kernel package
Hi,
apport-collect doesn't seem to work properly. After it gathers info
about my installation, it asks me whether to send the report or not, and
then it just closes.
I also tried using ubuntu-bug in the first place, but I had exactly the
same problem. That's why I submitted the bug manually.
I
Also, please try a newer kernel like:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.1.14/
or
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.2-rc6/
and tell us if either of those improve the situation.
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The above log looks like a kernel issue (if not a hardware issue).
** Package changed: libinput (Ubuntu) => linux (Ubuntu)
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Title:
Thank you for taking the time to report this bug and helping to make
Ubuntu better. Please execute the following command only once, as it
will automatically gather debugging information, in a terminal:
apport-collect 1834085
When reporting bugs in the future please use apport by using 'ubuntu-
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