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Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377

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On 31/05/2019 15:46, senthil kosapeta wrote:
> Dear Debians,
> 
> I have purchased Lenovo laptop around 6 months back. (Lenovo ideapad)
> I had installed ubuntu earlier and Wifi used to work fine.
> Somehow it got crashed a month back.
> 
> I have decided to switch over to debian 9.9 and installed it.
> Internet via Ethernet port is working. But wifi is not working and not
> showing available wireless networks.
> I searched/googled certain topic related to Debian wifi and tried
> installing firmware-atheros earlier.
> It did not work. When i tried restart, shutdown is stuck.
> If i force shutdown and restart, It will be stuck again.
> When i tried to do recover mode, msg displays that
> "ath10k_pci ** failed recieve control reponse completion, polling ...."
> 
> Please let me know how to proceed.
> 
>   Thanks
> Senthil
> 

Hi, can you check for firmware loading information in your logs ?

"grep firmware /var/log/messages" or "journalctl -b" and look for info 
related to the wifi chip.

Given the "shutdown stuck" issue I would try disabling interrupts and 
see if it solves the problem, "modinfo" says ath10k_pci accepts three 
irq options:

"parm:           irq_mode:0: auto, 1: legacy, 2: msi"

Maybe try "legacy" mode first, that may be what Ubuntu is doing as a 
default. You will need elevated privileges to run the next commands 
("sudo command" or "su -" and then type commands).

First two commands unload the driver module:


modprobe -r ath10k_pci
modprobe -r ath10k_core

Then reload it with proper option:

modprobe -v ath10k_core
modprobe -v ath10k_pci irq_mode=1

If it solves the problem you can make the change permanent.

Hope it helps.

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Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 senthil kosapeta <sendil.vlsi@gmail.com> - 2019-05-31 12:20 +0200
  Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 An Liu <sourceonly@gmail.com> - 2019-05-31 12:50 +0200
  Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 "tv.debian@googlemail.com" <tv.debian@googlemail.com> - 2019-05-31 13:20 +0200
    Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 "idiotein30@gmail.com" <idiotein30@gmail.com> - 2019-05-31 17:50 +0200
      Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 senthil kosapeta <sendil.vlsi@gmail.com> - 2019-05-31 19:10 +0200
        Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 "tv.debian@googlemail.com" <tv.debian@googlemail.com> - 2019-05-31 19:40 +0200
          Snipping and quoting: Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 rhkramer@gmail.com - 2019-05-31 20:00 +0200
            Re: Snipping and quoting: Re: Wifi not working in Lenovo  laptop/Ideapad/Atheros QCA9377 "tv.debian@googlemail.com" <tv.debian@googlemail.com> - 2019-05-31 20:20 +0200
          Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 senthil kosapeta <sendil.vlsi@gmail.com> - 2019-06-01 13:30 +0200
            Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 "tv.debian@googlemail.com" <tv.debian@googlemail.com> - 2019-06-01 15:30 +0200
              Re: Wifi not working in Lenovo laptop/Ideapad/Atheros QCA9377 senthil kosapeta <sendil.vlsi@gmail.com> - 2019-06-06 05:20 +0200

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