Wifi missing on thinkpad p1/extreme after kernel update

Questions about WIFI networks and devices
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zircon34
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Wifi missing on thinkpad p1/extreme after kernel update

Post by zircon34 »

Hi, I just spend about 10 hours trying to figure out why my wifi and bluetooth disappeared on a lenovo thinkpad p1 gen2 dual boot windows 10 and linux mint. After an update on linux mint 20 cinnamon, the wifi stopped working in both, linux and windows! I tried literally EVERYTHING, to reinstall the wifi drivers, download drivers from lenovo, run diagnostics through lenovo website, and I even reset my entire windows without any luck.

I found a solution! booting linux mint into an earlier kernel version (5.4.0-48) made the wifi magically reappear :D The culprit where kernel 5.4.0-51 and 5.4.0-52. Two questions:

- Is it worth sending a bug report, where to send it and how to go about it? In the long run would be great to make lenovo aware since they start supporting linux and shipping computers with ubuntu and fedora...

- What about the kernel version, how can I keep mint booting automatically into this kernel that worked, and will it break my system in future package updates?

Thanks for reading this, and I hope it may also help someone else!
zircon34
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Re: Wifi missing on thinkpad p1/extreme after kernel update

Post by zircon34 »

I think I found a solution to one of the questions about the kernel removal/management, which can be found here:

Update Manager > View > Kernel

then selected the newer kernels, remove.
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Kadaitcha Man
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Re: Wifi missing on thinkpad p1/extreme after kernel update

Post by Kadaitcha Man »

zircon34 wrote:
Wed Oct 21, 2020 2:09 am
... how can I keep mint booting automatically into this kernel that worked, and will it break my system in future package updates?
What you need to do is tell us how you installed the wifi driver, where it came from, what instructions you followed, and so on. What you have experienced is common when a kernel is updated and the drivers haven't been installed using dkms.
Coming to a thread near you: Lots of bragging about my AMD 5950X. Currently delayed due to high demand.
It's pronounced kad-eye-cha, not kada-itcha.
zircon34
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Re: Wifi missing on thinkpad p1/extreme after kernel update

Post by zircon34 »

Sorry that was unclear, I tried to do the driver installs etc in windows using the lenovo website and my computer model thinkpad p1 gen 2. Its a dual boot setup. It is also possible to download drivers and firmware for linux on lenovo nowadays but I did not touch these. I thought that the update in linux may have broken my bios firware and tried what I could to factory reset things using windows (an os that drives me mad).

Retrograding the linux kernel fixed it which is odd to me. Why would the linux kernel update affect the wifi driver of my entire system?

At this point I am not really sure that upgrading the kernel and trying to install a wifi driver in linux would fix it.
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Larry78723
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Re: Wifi missing on thinkpad p1/extreme after kernel update

Post by Larry78723 »

Without knowing anything about your hardware, it's impossible to answer definitively. Please post an inxi -Fxxxz report. This will give us a concise overview of your hardware and on how Mint sees it.

Here is how to generate the report and post it:
Open a terminal window (Ctrl-Alt-t). Make it fullscreen to avoid unneeded linebreaks or chopped lines. Execute the command

Code: Select all

 inxi -Fxxxz 
exactly as it has been typed here.

Mark the complete text output which the command will display with your mouse.
Press the keyboard shortcut <Shift><Ctrl>C to copy the marked text into the clipboard.
Enclose the results between the code markers by selecting </> from the mini toolbar above the textbox where you type your reply then paste <Ctrl>V them in your reply between the code markers.

The results will help us to help you.

Larry
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zircon34
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Re: Wifi missing on thinkpad p1/extreme after kernel update

Post by zircon34 »

Code: Select all

System:    Kernel: 5.4.0-48-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.6.7 wm: muffin 4.6.3 
           dm: LightDM 1.30.0 Distro: Linux Mint 20 Ulyana base: Ubuntu 20.04 focal 
Machine:   Type: Laptop System: LENOVO product: 20QT005CUS v: ThinkPad P1 Gen 2 serial: <filter> Chassis: type: 10 
           serial: <filter> 
           Mobo: LENOVO model: 20QT005CUS v: SDK0T08861 WIN serial: <filter> UEFI: LENOVO v: N2OET47W (1.34 ) date: 08/06/2020 
Battery:   ID-1: BAT0 charge: 40.8 Wh condition: 71.7/80.4 Wh (89%) volts: 14.7/15.4 model: Celxpert 5B10W13953 type: Li-poly 
           serial: <filter> status: Discharging cycles: 46 
CPU:       Topology: 8-Core model: Intel Core i9-9880H bits: 64 type: MT MCP arch: Kaby Lake rev: D L2 cache: 16.0 MiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 73598 
           Speed: 800 MHz min/max: 800/4800 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 801 5: 801 6: 800 7: 800 8: 801 
           9: 800 10: 800 11: 800 12: 800 13: 800 14: 800 15: 800 16: 800 
Graphics:  Device-1: Intel UHD Graphics 630 vendor: Lenovo driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:3e9b 
           Device-2: NVIDIA TU117GLM [Quadro T2000 Mobile / Max-Q] vendor: Lenovo driver: N/A bus ID: 01:00.0 
           chip ID: 10de:1fb8 
           Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa resolution: 3840x2160~60Hz 
           OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2) v: 4.6 Mesa 20.0.8 direct render: Yes 
Audio:     Device-1: Intel Cannon Lake PCH cAVS vendor: Lenovo driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
           chip ID: 8086:a348 
           Device-2: NVIDIA vendor: Lenovo driver: snd_hda_intel v: kernel bus ID: 01:00.1 chip ID: 10de:10fa 
           Sound Server: ALSA v: k5.4.0-48-generic 
Network:   Device-1: Intel Ethernet I219-LM vendor: Lenovo driver: e1000e v: 3.2.6-k port: efa0 bus ID: 00:1f.6 
           chip ID: 8086:15bb 
           IF: enp0s31f6 state: down mac: <filter> 
           Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel port: 2000 bus ID: 52:00.0 chip ID: 8086:2723 
           IF: wlp82s0 state: up mac: <filter> 
Drives:    Local Storage: total: 931.51 GiB used: 198.49 GiB (21.3%) 
           ID-1: /dev/nvme0n1 vendor: Western Digital model: WDS100T3X0C-00SJG0 size: 931.51 GiB speed: 31.6 Gb/s lanes: 4 
           serial: <filter> rev: 102000WD scheme: GPT 
           ID-2: /dev/nvme1n1 vendor: Samsung model: MZVLB1T0HBLR-000L7 size: 953.87 GiB speed: 31.6 Gb/s lanes: 4 
           serial: <filter> rev: 4M2QEXF7 scheme: GPT 
Partition: ID-1: / size: 915.40 GiB used: 198.49 GiB (21.7%) fs: ext4 dev: /dev/nvme0n1p2 
Sensors:   System Temperatures: cpu: 49.0 C mobo: 47.0 C 
           Fan Speeds (RPM): fan-1: 2102 
Info:      Processes: 305 Uptime: 9m Memory: 30.98 GiB used: 1.12 GiB (3.6%) Init: systemd v: 245 runlevel: 5 Compilers: 
           gcc: 9.3.0 alt: 9 clang: 10.0.0-4ubuntu1 Shell: bash v: 5.0.17 running in: gnome-terminal inxi: 3.0.38 
Thanks Larry, I did not know about this nifty command! I have a beast of machine... The output above is with the kernel retrograded to 5.4.0-48, i.e. when my wifi works. I just downloaded and installed linux mint about a week ago; the update packages affecting this wifi/bluetooth problem are very recent (to kernel 5.4.0-51 and -52).

It's just a tad scary when an update breaks my wifi on both linux and windows because I use the machine for work. I guess the solution in my first post is an emergency solution but you guys are helping me to cure the underlying cause not the symptom, thanks so much!
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Larry78723
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Re: Wifi missing on thinkpad p1/extreme after kernel update

Post by Larry78723 »

@zircon34 - The drivers for your Intel wifi card are included in the kernel so there's no need to install them. When you installed the driver in Windows, it shouldn't have any effect in Linux. By the way, NEVER install a Windows version of a driver to fix a linux problem, come here and we can guide you on how to fix it.
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