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[SOLVED] Re: firmware-iwlwifi



On 10/2/22 19:33, Charles Curley wrote:
On Sun, 2 Oct 2022 11:49:14 +0300
Georgi Naplatanov <gosho@oles.biz> wrote:

I have a notebook (Lenovo) with Intel's WiFi and I have minor issues
with it - sometimes works as expected but sometimes I cannot connect
to the notebook at first attempt throw SSH or sometimes latency is
high.

Which model Lenovo, and what is the exact wifi device? Please use lspci
to identify the device. For example, on my T520:

Hi Charles and The Wanderer,

Actually I think I found out what was happening:
- for failed connection attempts trough SSH - the notebook sometimes switches to suspend/sleep mode and turns off its WiFi card and it takes time WiFi connection to become active again - for high latency - 100 ms and sometimes even more - this problem is in my router probably (I installed OpenWrt on it, the issue may be in my local environment, busy WiFi channel because of neighbours' routers, not mature WiFi driver, etc.)

Here are answers to your questions.

This is partial output from lshw:


description: Notebook
product: 82H8 (LENOVO_MT_82H8_BU_idea_FM_IdeaPad 3 15ITL6)
vendor: LENOVO
version: IdeaPad 3 15ITL6


root@jhegaala:~# lspci | grep -i wifi
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
root@jhegaala:~#

You may have to use lspci with no options to identify your wifi device.


0000:00:14.3 Network controller: Intel Corporation Wi-Fi 6 AX201 (rev 20)

I'm not sure what you mean by

… sometimes I cannot connect to the notebook at first attempt throw
SSH or sometimes latency is high.

Well, I'll try to explain.

This is a small network with a router connected to Internet, one workstation connected to the router through Ethernet and the notebook connected with its WiFi card to the same router.

When the notebook is started, I log in into KDE and KDE connects the computer to my wireless network automatically. The notebook has installed Debian testing (up to date), KDE and KDE applet for Network Manager. After that I try to connect from workstation (Ethernet connection) through SSH to the notebook (WiFi).

Connecting to the network and using SSH are two distinct operations. Do
you connect to a network, and then check that you have a working network
before you try SSH?
I don't perform any checks usually because KDE connects the notebook automatically to my network.

What are you using to connect the laptop to a network? Network Manager?


Network manager through applet in KDE.

In kernel log are visible messages for unsuccessful attempts to
load firmware files.
Do those correlate with successful or unsuccessful attempts to join a
network? Please show us the exact log entry.

These are the entries from kernel log:

[ 3.453655] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-72.ucode (-2) [ 3.453695] firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware [ 3.454449] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-72.ucode (-2) [ 3.454488] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-72.ucode failed with error -2 [ 3.454518] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-71.ucode (-2) [ 3.454553] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-71.ucode (-2) [ 3.454581] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-71.ucode failed with error -2 [ 3.454592] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-70.ucode (-2) [ 3.454624] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-70.ucode (-2) [ 3.454651] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-70.ucode failed with error -2 [ 3.454662] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-69.ucode (-2) [ 3.454694] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-69.ucode (-2) [ 3.454720] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-69.ucode failed with error -2 [ 3.454730] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-68.ucode (-2) [ 3.454761] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-68.ucode (-2) [ 3.454787] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-68.ucode failed with error -2 [ 3.454799] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-67.ucode (-2) [ 3.454831] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-67.ucode (-2) [ 3.454858] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-67.ucode failed with error -2 [ 3.454868] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-66.ucode (-2) [ 3.454902] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-66.ucode (-2) [ 3.454929] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-66.ucode failed with error -2 [ 3.454939] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-65.ucode (-2) [ 3.454970] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-65.ucode (-2) [ 3.454997] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-65.ucode failed with error -2 [ 3.455007] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-64.ucode (-2) [ 3.455902] iwlwifi 0000:00:14.3: firmware: failed to load iwlwifi-QuZ-a0-hr-b0-64.ucode (-2) [ 3.458342] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-QuZ-a0-hr-b0-64.ucode failed with error -2

I'm not sure that these messages correlate to my attempts to log in into the notebook through SSH. The messages appear always in kernel log.

Kind regards
Georgi


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