Public bug reported:
Yesterday my WiFi card(Intel Wireless 3165) didn't show up on resuming
the laptop from a suspend state. I rebooted a few times and found that
the situation hadn't changed. Rebooting and choosing older kernels
didn't help. I ran lspci and discovered my WiFi card was missing in the
output. I shut down the laptop assuming my WiFi card suffered a hardware
failure. In the evening, after starting up from a full shutdown, the
WiFi card worked again.
Today, the situation happened again, but I approached the debugging more
methodically. I looked at nmcli and found it still saw my wifi card but
found it unavailable. lspci could still see the Wifi card in the last
position. I analyzed dmesg output and discovered an iwlwifi crash(the
relevant part of dmesg is provided in wifi_dmesg.txt attachment).
Then, I rebooted the laptop. This didn't fix the issue and from a quick
look at lspci, the wifi card was missing again. So I repeated the
procedure that worked the previous day - full shutdown, wait 10 seconds,
then start up. This restored my WiFi card to a working state and allowed
me to file this bug report.
I will be happy to provide any further information that could read to
fixing this issue.
Additional information:
1. lsb_release -rd
Description: Peppermint 8 Eight
Release: 8
Yes, that's technically not Ubuntu. However, Peppermint does not modify
Ubuntu's kernel, and Peppermint 8 is based on Ubuntu 16.04 Xenial Xerus.
2. apt-cache policy linux-firmware
linux-firmware:
Installed: 1.157.21
Candidate: 1.157.21
Version table:
*** 1.157.21 500
500 http://pl.archive.ubuntu.com/ubuntu xenial-updates/main amd64
Packages
500 http://pl.archive.ubuntu.com/ubuntu xenial-updates/main i386
Packages
500 http://security.ubuntu.com/ubuntu xenial-security/main amd64
Packages
500 http://security.ubuntu.com/ubuntu xenial-security/main i386 Packages
100 /var/lib/dpkg/status
1.157 500
500 http://pl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
500 http://pl.archive.ubuntu.com/ubuntu xenial/main i386 Packages
3. I expected suspend and resume to work like they did for the last two
years
4. iwlwifi crashed and dumped its registers.
5. Inxi, in case it's useful(many other bug reporting websites ask for it):
inxi -Fz
System: Host: PiDell Kernel: 4.15.0-47-generic x86_64 (64 bit) Desktop: N/A
Distro: Peppermint Eight
Machine: System: Dell (portable) product: Inspiron 15 7000 Gaming
Mobo: Dell model: 065C71 v: A00 Bios: Dell v: 1.7.0 date: 05/08/2018
CPU: Quad core Intel Core i7-7700HQ (-HT-MCP-) cache: 6144 KB
clock speeds: max: 3800 MHz 1: 800 MHz 2: 800 MHz 3: 800 MHz
4: 800 MHz 5: 800 MHz 6: 800 MHz 7: 800 MHz 8: 800 MHz
Graphics: Card-1: Intel Device 591b
Card-2: NVIDIA GP107M [GeForce GTX 1050 Ti Mobile]
Display Server: X.Org 1.19.6 driver: nvidia
Resolution: 1920x1080@60.00hz
GLX Renderer: GeForce GTX 1050 Ti/PCIe/SSE2
GLX Version: 4.6.0 NVIDIA 396.54
Audio: Card Intel CM238 HD Audio Controller driver: snd_hda_intel
Sound: Advanced Linux Sound Architecture v: k4.15.0-47-generic
Network: Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
Controller
driver: r8169
IF: enp2s0 state: down mac: <filter>
Card-2: Intel Wireless 3165 driver: iwlwifi
IF: wlp3s0 state: up mac: <filter>
Drives: HDD Total Size: 1256.3GB (27.6% used)
ID-1: /dev/sda model: Micron_1100_SATA size: 256.1GB
ID-2: /dev/sdb model: TOSHIBA_MQ01ABD1 size: 1000.2GB
Partition: ID-1: / size: 46G used: 38G (87%) fs: ext4 dev: /dev/sdb3
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 51.0C mobo: N/A gpu: 48C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 258 Uptime: 51 min Memory: 2152.2/15906.5MB
Client: Shell (bash) inxi: 2.2.35
** Affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
** Tags: iwlwifi xenial
** Attachment added: "dmesg log"
https://bugs.launchpad.net/bugs/1825678/+attachment/5257399/+files/wifi_dmesg.txt
** Also affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: network-manager (Ubuntu)
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https://bugs.launchpad.net/bugs/1825678
Title:
Intel wifi fails to resume after suspend
Status in linux-firmware package in Ubuntu:
New
Bug description:
Yesterday my WiFi card(Intel Wireless 3165) didn't show up on resuming
the laptop from a suspend state. I rebooted a few times and found that
the situation hadn't changed. Rebooting and choosing older kernels
didn't help. I ran lspci and discovered my WiFi card was missing in
the output. I shut down the laptop assuming my WiFi card suffered a
hardware failure. In the evening, after starting up from a full
shutdown, the WiFi card worked again.
Today, the situation happened again, but I approached the debugging
more methodically. I looked at nmcli and found it still saw my wifi
card but found it unavailable. lspci could still see the Wifi card in
the last position. I analyzed dmesg output and discovered an iwlwifi
crash(the relevant part of dmesg is provided in wifi_dmesg.txt
attachment).
Then, I rebooted the laptop. This didn't fix the issue and from a
quick look at lspci, the wifi card was missing again. So I repeated
the procedure that worked the previous day - full shutdown, wait 10
seconds, then start up. This restored my WiFi card to a working state
and allowed me to file this bug report.
I will be happy to provide any further information that could read to
fixing this issue.
Additional information:
1. lsb_release -rd
Description: Peppermint 8 Eight
Release: 8
Yes, that's technically not Ubuntu. However, Peppermint does not modify
Ubuntu's kernel, and Peppermint 8 is based on Ubuntu 16.04 Xenial Xerus.
2. apt-cache policy linux-firmware
linux-firmware:
Installed: 1.157.21
Candidate: 1.157.21
Version table:
*** 1.157.21 500
500 http://pl.archive.ubuntu.com/ubuntu xenial-updates/main amd64
Packages
500 http://pl.archive.ubuntu.com/ubuntu xenial-updates/main i386
Packages
500 http://security.ubuntu.com/ubuntu xenial-security/main amd64
Packages
500 http://security.ubuntu.com/ubuntu xenial-security/main i386
Packages
100 /var/lib/dpkg/status
1.157 500
500 http://pl.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
500 http://pl.archive.ubuntu.com/ubuntu xenial/main i386 Packages
3. I expected suspend and resume to work like they did for the last
two years
4. iwlwifi crashed and dumped its registers.
5. Inxi, in case it's useful(many other bug reporting websites ask for it):
inxi -Fz
System: Host: PiDell Kernel: 4.15.0-47-generic x86_64 (64 bit) Desktop: N/A
Distro: Peppermint Eight
Machine: System: Dell (portable) product: Inspiron 15 7000 Gaming
Mobo: Dell model: 065C71 v: A00 Bios: Dell v: 1.7.0 date:
05/08/2018
CPU: Quad core Intel Core i7-7700HQ (-HT-MCP-) cache: 6144 KB
clock speeds: max: 3800 MHz 1: 800 MHz 2: 800 MHz 3: 800 MHz
4: 800 MHz 5: 800 MHz 6: 800 MHz 7: 800 MHz 8: 800 MHz
Graphics: Card-1: Intel Device 591b
Card-2: NVIDIA GP107M [GeForce GTX 1050 Ti Mobile]
Display Server: X.Org 1.19.6 driver: nvidia
Resolution: 1920x1080@60.00hz
GLX Renderer: GeForce GTX 1050 Ti/PCIe/SSE2
GLX Version: 4.6.0 NVIDIA 396.54
Audio: Card Intel CM238 HD Audio Controller driver: snd_hda_intel
Sound: Advanced Linux Sound Architecture v: k4.15.0-47-generic
Network: Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
Controller
driver: r8169
IF: enp2s0 state: down mac: <filter>
Card-2: Intel Wireless 3165 driver: iwlwifi
IF: wlp3s0 state: up mac: <filter>
Drives: HDD Total Size: 1256.3GB (27.6% used)
ID-1: /dev/sda model: Micron_1100_SATA size: 256.1GB
ID-2: /dev/sdb model: TOSHIBA_MQ01ABD1 size: 1000.2GB
Partition: ID-1: / size: 46G used: 38G (87%) fs: ext4 dev: /dev/sdb3
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 51.0C mobo: N/A gpu: 48C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 258 Uptime: 51 min Memory: 2152.2/15906.5MB
Client: Shell (bash) inxi: 2.2.35
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