Public bug reported:
The wifi device disconnect sometime randomly or sometime when switching hotspot
with the following dmesg output:
[ 1039.212949] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 1039.213503] iwlwifi 0000:01:00.0: L1 Enabled - LTR Enabled
[ 1039.221549] pcieport 0000:00:1c.0: AER: Corrected error received: id=00e0
[ 1039.221561] pcieport 0000:00:1c.0: PCIe Bus Error: severity=Corrected,
type=Physical Layer, id=00e0(Receiver ID)
[ 1039.221566] pcieport 0000:00:1c.0: device [8086:9d14] error
status/mask=00000001/00002000
[ 1039.221569] pcieport 0000:00:1c.0: [ 0] Receiver Error (First)
[ 1039.239086] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
The device at pcieport 0000:00:1c.0 seems to be the Intel 7265 wireless:
$ lspci -tv
-[0000:00]-+-00.0 Intel Corporation Device 5904
+-02.0 Intel Corporation Device 5916
+-14.0 Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller
+-14.2 Intel Corporation Sunrise Point-LP Thermal subsystem
+-16.0 Intel Corporation Sunrise Point-LP CSME HECI #1
+-17.0 Intel Corporation Sunrise Point-LP SATA Controller [AHCI
mode]
+-1c.0-[01]----00.0 Intel Corporation Wireless 7265
+-1d.0-[02]----00.0 Samsung Electronics Co Ltd NVMe SSD Controller
+-1f.0 Intel Corporation Device 9d58
+-1f.2 Intel Corporation Sunrise Point-LP PMC
+-1f.3 Intel Corporation Device 9d71
\-1f.4 Intel Corporation Sunrise Point-LP SMBus
To allow the device to connect again I use the following:
$ sudo systemctl restart network-manager.service
That said, the pcieport 0000:00:1c.0 dmesg outputs sometimes appears
without affecting the wifi connection...
$ lsb_release -rd
Description: Ubuntu 16.04.1 LTS
Release: 16.04
$ inxi -Abd
System: Host: 710s Kernel: 4.4.0-62-generic x86_64 (64 bit) Desktop: Unity
7.4.0 Distro: Ubuntu 16.04 xenial
Machine: System: LENOVO (portable) product: 80VQ v: Lenovo ideapad 710S-13IKB
Mobo: LENOVO model: Lenovo ideapad 710S-13IKB v: SDK0J40709 WIN
Bios: LENOVO v: 3HCN12S2 date: 10/07/2016
CPU: Dual core Intel Core i7-7500U (-HT-MCP-) speed/max: 600/2701 MHz
Graphics: Card: Intel Device 5916
Display Server: X.Org 1.18.4 drivers: intel (unloaded: fbdev,vesa)
Resolution: 1920x1080@60.02hz
GLX Renderer: Mesa DRI Intel Kabylake GT2 GLX Version: 3.0 Mesa
11.2.0
Audio: Card Intel Device 9d71 driver: snd_hda_intel Sound: ALSA v:
k4.4.0-62-generic
Network: Card: Intel Wireless 7265 driver: iwlwifi
Drives: HDD Total Size: NA (-) ID-1: /dev/nvme0n1 model: N/A size: 256.1GB
Optical: No optical drives detected.
Info: Processes: 244 Uptime: 34 min Memory: 2000.8/7876.3MB Client: Shell
(bash) inxi: 2.2.35
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1663050
Title:
Intel 7265 wireless device disconnect: link is not ready
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