Dell XPS 13 9360 bluetooth (Atheros) won't connect after resume
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Artful |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
=== SRU Justification ===
[Impact]
Bluetooth (Atheros) won't connect after resume.
[Test Case]
Suspend/resume XPS 9360. BT controller is not functional now.
With the fix, user confirms the issue is fixed.
[Regression Potential]
Low. Limited to Atheros BT. No regression report so far since Hans'
patch got merged upstream.
=== Original Bug Report ===
Sometimes after sleep/resume bluetooth won't reconnect to any device.
I can see this in dmesg:
[13129.890580] Bluetooth: hci0 command 0x0c1a tx timeout
I tried:
1. sudo hciconfig hci0 reset
Can't init device hci0: Connection timed out (110)
2. tried reloading modules:
sudo rmmod btusb
sudo rmmod btrtl
sudo rmmod hci_uart
sudo rmmod btintel
sudo rmmod btbcm btqca
sudo rmmod rfcomm
sleep 1
sudo modprobe btusb btrtl hci_uart btintel btbcm btqca rfcomm
no luck.
3. restart bluetoothd - no luck
Only reboot helps.
Laptop is: Dell XPS 13 9360.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: bluetooth (not installed)
ProcVersionSign
Uname: Linux 4.13.0-25-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Jan 22 12:50:58 2018
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-12-18 (35 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: Dell Inc. XPS 13 9360
ProcKernelCmdLine: BOOT_IMAGE=
SourcePackage: bluez
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/12/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.5.0
dmi.board.name: 02PG84
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.
dmi.product.family: XPS
dmi.product.name: XPS 13 9360
dmi.sys.vendor: Dell Inc.
hciconfig:
hci0: Type: Primary Bus: USB
BD Address: 9C:B6:D0:EB:95:A6 ACL MTU: 1024:8 SCO MTU: 50:8
DOWN
RX bytes:2301887 acl:127559 sco:0 events:249 errors:0
TX bytes:4327 acl:47 sco:0 commands:81 errors:0
no longer affects: | linux-firmware (Ubuntu) |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | Confirmed → Incomplete |
description: | updated |
Changed in linux (Ubuntu Artful): | |
status: | Confirmed → Fix Committed |
tags: | added: ubuntu-certified |
tags: | added: cscc |
Hi.
This sounds like a problem with your Atheros wireless/bluetooth chips. Other people are discussing the same problem with the Dell XPS 13 9360 here: /www.dell. com/community/ General/ XPS-13- 9360-Bluetooth- stopped- working/ m-p/5092216
https:/
However a problem that low-level is usually a kernel or firmware problem (if not hardware). Especially if restarting BlueZ (bluetoothd) makes no difference. So I'm reassigning this to the kernel.