Wifi [Atheros AR9287] does not work on Debian 10 Live CD

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Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby dcapeletti » 2020-09-06 17:29

Hi, until a few days ago I had Debian 9 installed and my wifi works without any problems, without requiring the installation of any package. My wifi board is next:

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Network controller [0280]: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) [168c:002e] (rev 01)
   Subsystem: Foxconn International, Inc. T77H167.00 [105b:e034]
   Kernel driver in use: ath9k
   Kernel modules: ath9k


My current system is Linux debian-pc 4.9.0-13-amd64 #1 SMP Debian 4.9.228-1 (2020-07-05) x86_64 GNU/Linux. My wifi board on this system works without problems, once you run debian 9 live, you can connect to wifi networks.

Yesterday afternoon I decided to install Debian 10, but I encountered the problem that my wifi board is not recognized, which made it impossible to connect to a network. Therefore I had to go back to Debian 9. This problem occurs with debian 10 live or installed on the hard drive.

My question is, what is the cause of the problem on debian 10? Is there a solution to it? Is my board no longer supported?
I would like to install it in my pc and that the wifi works without problems as it does debian 9.

I hope you can help me, thank you very much. :wink:
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby Head_on_a_Stick » 2020-09-06 17:56

dcapeletti wrote:I encountered the problem that my wifi board is not recognized

You should explain exactly how you are attempting to recognise your wireless device.
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby dcapeletti » 2020-09-06 18:08



I'm in debian 10 kde live cd Linux debian 4.19.0-10-amd64 #1 SMP Debian 4.19.132-1 (2020-07-24) x86_64 GNU/Linux
The output command ip a is
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1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp3s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 20:6a:8a:5f:b7:dc brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.159/24 brd 192.168.0.255 scope global dynamic noprefixroute enp3s0f0
       valid_lft 3388sec preferred_lft 3388sec
    inet6 fe80::b98f:e0f1:6aac:3b41/64 scope link noprefixroute
       valid_lft forever preferred_lft forever
3: wlp2s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 2a:97:87:4b:c9:30 brd ff:ff:ff:ff:ff:ff
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby dcapeletti » 2020-09-06 18:14

Head_on_a_Stick wrote:
dcapeletti wrote:I encountered the problem that my wifi board is not recognized

You should explain exactly how you are attempting to recognise your wireless device.



Under kde Network Connections only the wired network appears. I cannot see any wifi devices. When I try to connect from the bottom panel of kde, I cannot do it either.
If I press the wifi on/off keys, the indication LED does not turn on or off, but on the lower panel of kde, the wifi appears with a line crossed out or not when I press these keys.
On Debian 9, the LED turns off or on without any problem when pressing those keys.
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby sunrat » 2020-09-06 22:32

So you still haven't got it working since posting exactly the same question at Trisquel forums 4 months ago? https://trisquel.info/en/forum/wifi-qua ... -debian-10

What shows this command (as root or sudo)? -
Code: Select all
rfkill


Also there are a crapload of hits when you search the interwebz for "debian ar9287" . Which of those solutions have you tried? Some suggest creating a config file to disable hardware encryption may work:
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echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9k.conf
sudo modprobe -r ath9k
sudo modprobe -v ath9k
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby dcapeletti » 2020-09-07 17:43

Hello, thank you all for your help.
I just made a video of debian 10 live so you can see clearly what is going on with the wifi network. See https://www.youtube.com/watch?v=rNwQFVJ ... e=youtu.be
I am currently connected by network cable without any problems, but as you can see, it is impossible to activate the wifi, see the networks, etc.

I have executed the commands that have been proposed to me but nothing works, perhaps because it is in live cd mode. I have tried many solutions, I don't know how many, but my free software network board doesn't work with free software.

Greetings
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby Head_on_a_Stick » 2020-09-07 17:48

Please post the output requested by sunrat, your card is detected and supported so it's probably just soft-blocked.
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby dcapeletti » 2020-09-07 17:54

Head_on_a_Stick wrote:Please post the output requested by sunrat, your card is detected and supported so it's probably just soft-blocked.

In the video https://www.youtube.com/watch?v=rNwQFVJ ... e=youtu.be I show the output of everything proposed by sunrat. Anyway, I copy it. It should be clarified that I am running in live cd mode.

Code: Select all
user@debian:~$ sudo rfkill
ID TYPE DEVICE             SOFT         HARD
 0 wlan acer-wireless bloqueado desbloqueado
 2 wlan phy0          bloqueado    bloqueado



Code: Select all
user@debian:~$ echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9k.conf
options ath9k nohwcrypt=1
user@debian:~$ sudo modprobe -r ath9k
user@debian:~$ sudo modprobe -v ath9k
insmod /lib/modules/4.19.0-10-amd64/kernel/net/wireless/cfg80211.ko
insmod /lib/modules/4.19.0-10-amd64/kernel/net/mac80211/mac80211.ko
insmod /lib/modules/4.19.0-10-amd64/kernel/drivers/net/wireless/ath/ath.ko
insmod /lib/modules/4.19.0-10-amd64/kernel/drivers/net/wireless/ath/ath9k/ath9k_hw.ko
insmod /lib/modules/4.19.0-10-amd64/kernel/drivers/net/wireless/ath/ath9k/ath9k_common.ko
insmod /lib/modules/4.19.0-10-amd64/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko nohwcrypt=1
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby Head_on_a_Stick » 2020-09-07 18:09

dcapeletti wrote:In the video https://www.youtube.com/watch?v=rNwQFVJ ... e=youtu.be I show the output of everything proposed by sunrat

I didn't watch your video and I don't speak Spanish(?) but this might work:
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sudo rfkill unblock all

If it doesn't work then stop the acer-wireless module from loading at boot:
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sudo tee /etc/modprobe.d/acer-wireless.conf <<<'blacklist acer-wireless'

And if that doesn't help then remove the file at /etc/modprobe.d/acer-wireless.conf to return to the stock configuration.

EDIT: and double-check the hardware switch for your wireless device, make sure it's on.
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby dcapeletti » 2020-09-07 20:13

Hello, in live cd mode no proposed solution works. Maybe installing debian 10 on disk would work, but I want the wifi to work on live cd.

The wifi switch is off, I can't turn it on with the key combinations. However, in debian 9 live it works without problems the wifi switch. The problem occurs in debian 10.

Greetings
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Re: Wifi [Atheros AR9287] does not work on Debian 10 Live CD

Postby sgosnell » 2020-09-07 20:28

I don't know why, but I get no audio on your video. Other YouTube videos have excellent audio. Not that it would do any good, since I don't speak most Romance languages, unfortunately.
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