** Tags added: cscc
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete
(0x0f)
Status in Linux:
This bug was fixed in the package linux - 4.15.0-48.51
---
linux (4.15.0-48.51) bionic; urgency=medium
* linux: 4.15.0-48.51 -proposed tracker (LP: #1822820)
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
- [Packaging] resync retpoline extraction
This bug was fixed in the package linux - 4.18.0-18.19
---
linux (4.18.0-18.19) cosmic; urgency=medium
* linux: 4.18.0-18.19 -proposed tracker (LP: #1822796)
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
- [Packaging] resync retpoline extraction
Hi all!
The Bionic and Cosmic kernels containing a fix for this issue are now in
their "-proposed" repositories. Could someone please verify if they fix
the issue you're experiencing?
For those reading that haven't done this before, here are instructions
for enabling and using the "-proposed"
Hello Cristian and everyone involved,
The Bionic and Cosmic kernels containing a fix for this issue are now in
-proposed. Could anyone please verify if they fix the issue as expected?
Thank you.
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This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
cosmic' to 'verification-done-cosmic'. If the problem still exists,
change the tag
^^^
Is that implying the fix is in proposed?
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete
** Changed in: linux (Ubuntu Bionic)
Status: Confirmed => Fix Committed
** Changed in: linux (Ubuntu Cosmic)
Status: Confirmed => Fix Committed
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Comment 24 suggests to me that this bug should be closed (?). Because it
seems to eliminate the possibility of the message appearing with (0x0f).
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** Description changed:
+ === SRU Justification ===
+ [Impact]
+ Kernel constantly reports "Bluetooth: hci0: last event is not cmd
+ complete (0x0f)" when using Bluetooth.
+
+ [Fix]
+ If the HCI event is Command Status, just bail because there's no further
+ thing to do.
+
+ [Test]
+ Open Gnome
That commit fixes the issue for me.
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete
(0x0f)
Status
I have verified the fix is in Ubuntu 19.04 disco.
** Also affects: linux (Ubuntu Cosmic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Disco)
Importance: Low
Status: Confirmed
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status:
Specifically, instances of:
hci0: last event is not cmd complete (0x0f)
are spurious so the message shouldn't be appearing at all. Because 0x0f
== HCI_EV_CMD_STATUS. Just ignore the message. Future kernels won't show
that message thanks to this fix from Intel:
> it's the only method to further debug hardware/firmware problems on
lot of platforms
I don't know if that is true, but if the message is legitimately being
used in debugging then it will keep appearing in future.
For more information see comment #73 above and comment 24 in the kernel bug:
Why this have changed importance Medium->Low while it's the only method
to further debug hardware/firmware problems on lot of platforms ?
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Should this be added to the stable series too?
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete
As I suspected, the error:
Bluetooth: hci0: last event is not cmd complete (0x0f)
is itself not a bug. The only bug is that the error was displayed when
it shouldn't be. So if you have any actual Bluetooth bugs then they
should probably be logged elsewhere. That is according to
The "last event is not cmd complete" is in most/all cases a red herring,
so please don't focus on that. There's a patch in mainline that will
remove it for all valid situations (i.e. when the command completed with
command status instead of command complete):
I'm having the same issue on my Dell 7559 with Intel Dual Band Wireless-
AC 8265 (Wi-Fi/BT combo) since forever (around two years ago). Mouse and
keyboard works. However, I cannot connect my phone, headset or bluetooth
speaker. I'm using 4.20.3-arch1-1-ARCH with Gnome Shell 3.30.2.
I addition to
Observing the issue on Fedora 29 Cinnamon. I have Lenovo T440P laptop on
which I am trying to connect my Bluetooth headsets (Sony MDR-XB650BT).
The Bluetooth is failing to even detect the headsets. At the same time,
it can detect my smart bands, mobile phones, other laptops etc. The same
$ tail -f /var/log/syslog
Dec 1 21:28:26 localhost kernel: [ 683.235091] Bluetooth: hci0: last event is
not cmd complete (0x0f)
$ dmesg | grep -i bluetooth
[3.368473] bluetooth hci0: Direct firmware load for
brcm/BCM20702A1-13d3-3404.hcd failed with error -2
[3.368475] Bluetooth:
I got a similar problem: many "Bluetooth: hci0: last event is not cmd
complete (0x0f)" in dmesg and the sound from the bluetooth speaker is
distorted (but connected).
The problem goes away as soon as I close the "bluetooth setting"
windows: basically the issue arises only while the controller is
Same issue on latest Manjaro and Intel 7260. Bluetooth is unusable cause
of this.
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Title:
Kernel regularly logs: Bluetooth: hci0:
I'm experiencing the same issue on Debian 8 "Jessie" with a backported
Kernel 4.18 and latest Intel Firmware for my Wireless card.
I'm testing on a Clevo compute with Intel Corporation Dual Band
Wireless-AC 3168NGW.
Let me know if I can help, it's really annoying, I couldn't make the
Bluetooth
I also have the issue in Fedora 27 on Dell Inspiron 15 5570 with
Qualcomm bluetooth (hciconfig -a hci0 shows that)
But in my case the sound from bluetooth speakers JBL Flip 4 is fine. I
dind't experience any issues, only there are lot of messages in dmesg
logs.
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I've just installed Blueberry on Arch Linux 4.18.17.a-1-hardened and I get this
bug as well.
dmesg shows several 'not cmd complete' followed by an input remap. I have only
ever seen the message pop up when the Blueberry device manager is open. Last
format (read: last week) I used Blueman and
I confirm that too on Dell Precision 5530 (Intel Corporation Wireless-AC 9260)
and Manjaro Cinnamon, Kernel 4.19.1
But it only occures if i have Bluetooth device discovery open and then only all
16s! So it must be related to that.
BT Headset is working anyway but sometimes interrupted but
Confirming the issue on Dell Vostro 5468 with Intel Bluetooth adapter
(8087:0a2a), OS Ubuntu 18.04.1, kernel version. 4.15.0-36-generic. Audio
output appears to clog and tear second after log line shows in dmesg.
This goes for 4-5 seconds, after which playback continues normally for
another ~10
Same here with rtl8723de 4.18.16 latest rtl_bt firmware.
Pairing fails with an Edifier r2000db speaker.
I'm not sure, but i think pairing with an android device worked.
On failure bluezctl says something like connect attempt failed.
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This Bug seems to affect even basic HCI functionality:
"hcitool inq" is never returning in my case. dmesg gives me said error message.
I have tried two different USB-Bluetooth Dongles:
[ ] usb 2-2: New USB device found, idVendor=04b4, idProduct=f901, bcdDevice=
1.12
[ ] usb 2-2: New USB device
I am facing the same trouble.
I can't air with some devices.
My card is :
08:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1]
(rev 73)
Subsystem: Intel Corporation Wireless-N 7260 [8086:4062]
Kernel driver in use: iwlwifi
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dmesg
https://paste.pound-python.org/raw/Z0A2xHsgA3ePo8rmIL7L/
lspci -vvv
https://paste.pound-python.org/raw/9mPWBx1BJfar6yROQOVu/
lsmod
https://paste.pound-python.org/raw/TASuig0MdPwOmWiEUWeh/
sha256sum /lib/firmware/rtl_bt/rtl8723d_*
https://paste.pound-python.org/raw/XkFQ6c6f9HpqmUhCEJOn/
Same issue here with Fedora 28 and 29, using Gigabyte x470 Gaming 7
motherboard with an Intel Wifi and Bluetooth chipset.
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Title:
sudo lsusb -vvv
https://paste.pound-python.org/raw/vfIi8iqFxDaI5Mofjruq/
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Title:
Kernel regularly logs: Bluetooth: hci0: last event
Hello,
just installed Ubuntu 18.10 on a Lenovo E485 and got this error.
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Title:
Kernel regularly logs: Bluetooth: hci0: last event
Hello,
Has anybody checked Ubuntu 18.10?
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete
(0x0f)
** Also affects: fedora
Importance: Undecided
Status: New
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is
Everyone, if you would like this bug fixed then the most effective place
to discuss it is directly with the Bluetooth/kernel developers here:
https://bugzilla.kernel.org/show_bug.cgi?id=198699
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WRT comment #46: Installing brcm/BCM20702A1-0b05-180a.hcd from
winterheart had no effect on this or any other Bluetooth anomalies I've
observed except eliminating the "Direct firmware load" error.
WRT comment #51: in my environment this co-occurs with Bluetooth
functioning "correctly", i.e. the
Ok, you didn't actually read my log output and assume things. The log
message disappears completely WHEN my Bluetooth starts working. The
actual opposite of your argument. I.e., the message only appears when my
machine is "unhealthy". The message does not occur concurrently at all.
Regardless, I
I don't think so.
Because this error message happens all the time it's going to happen at
the same time as other Bluetooth problems. So people will *think* it's
related to those other problems because both occur concurrently in the
log.
However because we already know this error message happens
"So it would be most helpful if anyone is experiencing actual problems
to report those in a separate bug."
@Daniel
You might want to reconsider if this is related to Bluetooth failures, at least
the message is specifically linked to Bluetooth connection issues as seen in my
tests.
See
Launchpad has imported 14 comments from the remote bug at
https://bugzilla.kernel.org/show_bug.cgi?id=198699.
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
Bug 1788383 is a duplicate of this one.
If you do log a new bug please describe a different issue to that
described in this bug.
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Hello,
I am creating a new report:
https://bugs.launchpad.net/bugs/1788383
Regards,
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Title:
This bug is not related to playback failures. Please log a NEW bug for
that by running:
ubuntu-bug bluez
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Title:
Kernel
Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete
(0x0f) and I am unable to play anything via bluetooth. Speaker gets
connected but can not play audio.
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I can confirm that I also get this message while using my bluetooth
headphones. Bluetooth is working fine. This message makes my TTY console
sessions completely unusable. For example when I'm editing a file using
nano or vi the message is written on top of the file, wherever my cursor
was.
In my
The message:
Bluetooth: hci0: last event is not cmd complete (0x0f)
occurs even on machines where Bluetooth is working properly.
So it would be most helpful if anyone is experiencing actual problems to
report those in a separate bug.
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I.e. - most of the time, after having suspended my computer, it will not
connect to bluetooth and I have to reboot. So this bug _is_ about
Bluetooth failing. At least until after a reboot. You could say, it's
about "suspend" failing.
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I second comment #14 - that's what happens on my device, too.
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is not cmd
Alexey, see comment #23.
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete
(0x0f)
Status in Linux:
I can't make the headset microphone work and I see this in dmesg when I
try to switch the profile from A2DP to HSP/HFP in settings. The profile
isn't switching though.
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I have the same issue on the fresh install of Ubuntu 18.04
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is not cmd
This bug is not about Bluetooth failing. This bug is only about the
kernel log message, which seems to happen even when everything is
apparently working.
If you experience a failure of any sort then please log a new bug.
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I also see that there are many devices I cannot pair to, e.g. my Bambo
slate, it is discovered fine on my other pcs but just does not appear in
the devices list as I make it discoverable and run
I from withing bluethootctl I start to search for a device, some of them show
up some don't
my
I've been running 18.04 on a MacBook Pro (early 2011) and my Bluetooth
Ultrathin Touch Mouse worked just fine as did my touchpad for the past
month or so.
Then last night I noticed that my touchpad didn't work but Bluetooth
mouse did just fine. This morning there was a software update and now
Confirm this issue too.
laptop : dell xps 15 9550
linux : 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64
x86_64 x86_64 GNU/Linux
bluetooth device :
Devicexxx (public)
Name: Bluetooth Mouse M557
Alias: Bluetooth Mouse M557
Class:
This is probably not a showstopper. You are confusing Bluetooth bugs for
a probably harmless bluetooth log message. This but is about the latter.
If something is "completely unusable" then please log a new bug for
that.
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Hey, this is actually a 18.04 _show stopper_!
The Bluetooth devices of all 16.04->18.04 upgraded pc's (no matter which
controller)
becomes completely unusable :-(
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I recommend anyone who wishes to contribute to this bug do so in the
upstream bug where the Bluetooth developers are:
https://bugzilla.kernel.org/show_bug.cgi?id=198699
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In my case I have the same issue
4.15.0-15-generic #16-Ubuntu SMP Wed Apr 4 13:58:14 UTC 2018 x86_64 x86_64
x86_64 GNU/Linux
If I type
dmesg | grep -i bluetooth
I get:
[2.233539] usb 1-1.4: Product: DW375 Bluetooth Module
[ 35.812010] Bluetooth: Core ver 2.22
[ 35.812026] Bluetooth:
[27656.334177] usb 1-7: USB disconnect, device number 5
[27712.841243] usb 1-7: new full-speed USB device number 11 using xhci_hcd
[27712.990551] usb 1-7: New USB device found, idVendor=8087, idProduct=0a2b
[27712.990556] usb 1-7: New USB device strings: Mfr=0, Product=0, SerialNumber=0
I think this is related to suspend.
If I reboot my computer, and pair my headset, I get sound.
when I suspend my computer and try to turn on the bluetooth connection I
get the error message dmesg.
Ubuntu 17.04 did not have this problem, but 17.10 and 18.04 has.
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I'm also getting the same error: "Bluetooth: hci0: last event is not cmd
complete (0x0f)"
The message always appears as Bluetooth audio starts to skip.
Also the device keeps disconnecting and reconnecting.
There is no message specific to when the device disconnects.
But every time the device
confirming, imac 27 late 2013
Bluetooth: hci0: last event is not cmd complete (0x0f)
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Title:
Kernel regularly logs: Bluetooth:
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
Kernel regularly logs: Bluetooth: hci0: last event is
Confirm that issue too. Message is only printed when Bluetooth
controller is discovering for devices.
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Title:
Kernel regularly
** Summary changed:
- Bluetooth: hci0: last event is not cmd complete (0x0f)
+ Kernel regularly logs: Bluetooth: hci0: last event is not cmd complete (0x0f)
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i can confirm this issue. bluetooth is working fine (keyboard & mouse).
however makes my console unusable since the message appears every couple of
secs.
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My problem was related to a faulty Bluetooth device. Sorry about the
noise, please disregard. Thanks!
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Title:
Bluetooth: hci0: last
Still incomplete awaiting an answer to comment #5.
I suspect this log message is getting confused for bluetooth audio
skipping, but I think those might be separate issues.
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Confirmed this bug occurs with other bluetooth dongles too.
** Summary changed:
- [Intel 6235] Bluetooth: hci0: last event is not cmd complete (0x0f)
+ Bluetooth: hci0: last event is not cmd complete (0x0f)
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My new Ubuntu 18.04 system also having this issue. I am using Wireless
Dual-Band Bluetooth(Intel 8260) PCI-E card from Asus(PCE-AC55BT). No
issues with the wifi, but the bluetooth conrol tools fail to discover
devices:
$ cat /proc/cpuinfo | grep -m1 'model name'
model name : AMD Ryzen 7 1700
Are you experiencing problems with bluetooth audio?
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Title:
[Intel 6235] Bluetooth: hci0: last event is not cmd complete (0x0f)
Hello Daniel,
> Is bluetooth working for you?
Yes, work for my
> I mean are you only reporting the log message, or is bluetooth also
not working?
It sounds cut
Regards,
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Is bluetooth working for you? I mean are you only reporting the log
message, or is bluetooth also not working?
** Summary changed:
- Bluetooth: hci0: last event is not cmd complete (0x0f)
+ [Intel 6235] Bluetooth: hci0: last event is not cmd complete (0x0f)
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** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Public bug reported:
Hello,
dmesg:
[ 3363.056494] Bluetooth: hci0: last event is not cmd complete (0x0f)
Regards,
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ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-9-generic 4.15.0-9.10
ProcVersionSignature: Ubuntu 4.15.0-9.10-generic 4.15.2
Uname: Linux
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