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Re: strange problem with usb wifi adapter

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On Sun, Dec 12, 2021 at 10:07:12AM +0000, Andrew M.A. Cater wrote:
> On Sun, Dec 12, 2021 at 12:18:52AM +0000, Long Wind wrote:
> > 
> > Thank David!
> > 
> >  if this theory is correct, how does debian installer configure it? official image i use is supposed to be without non-free firmware 
> > 
> 
> If it's a particular Mediatek chipset, then the firmware for it may be
> in the firmware-linux-nonfree metapackage - which also pulls in 
> firmware-misc-nonfree which is the package where the actual driver is. 
> 99% of current wireless chips need additional firmware to operate correctly.
> https://packages.debian.org/bullseye/firmware-linux-nonfree 

As another hint to debugging, you may look into dmesg's output (do, e.g.
"sudo dmesg | less") for clues. An idea to clear the above question
would be to compare dmesg's output while the installer is running with
the one after the installed system boots.

Here's "my" kernel's output to dmesg while it's trying to feed "my" WiFi
hardware its firmware, to give you a rough idea on what to look for.
Searching for "wifi", or for your wifi's kernel module's name seem to be
good approaches:

  [   54.906353] Intel(R) Wireless WiFi driver for Linux
  [   54.906565] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
  [   54.996363] iwlwifi 0000:03:00.0: firmware: direct-loading firmware iwlwifi-6000g2a-6.ucode
  [   54.996531] iwlwifi 0000:03:00.0: loaded firmware version 18.168.6.1 6000g2a-6.ucode op_mode iwldvm
  [   54.996555] iwlwifi 0000:03:00.0: firmware: failed to load iwl-debug-yoyo.bin (-2)
  [   54.996617] firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware

So it seems to load some iwlwifi-6000g2a-6.ucode, which seems to work
But that one "...-yoyo.bin". What that "-2" means is anyone's guess, but
my gues would be "No such file or directory" (keeping with the good old
ERRNO tradition, why should the kernel folks break that?).

Happy digging :)
-- 
tomás

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Thread

strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-11 06:40 +0100
  Re: strange problem with usb wifi adapter <tomas@tuxteam.de> - 2021-12-11 08:50 +0100
    Re: strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-11 09:20 +0100
      Re: strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-11 09:20 +0100
      Re: strange problem with usb wifi adapter Cindy Sue Causey <butterflybytes@gmail.com> - 2021-12-11 09:30 +0100
        Re: strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-11 10:00 +0100
          Re: strange problem with usb wifi adapter Andrei POPESCU <andreimpopescu@gmail.com> - 2021-12-11 10:30 +0100
      Re: strange problem with usb wifi adapter <tomas@tuxteam.de> - 2021-12-11 09:50 +0100
  Re: strange problem with usb wifi adapter "Andrew M.A. Cater" <amacater@einval.com> - 2021-12-11 13:20 +0100
    Re: strange problem with usb wifi adapter David Wright <deblis@lionunicorn.co.uk> - 2021-12-11 20:40 +0100
      Re: strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-11 23:10 +0100
        Re: strange problem with usb wifi adapter David Wright <deblis@lionunicorn.co.uk> - 2021-12-12 00:20 +0100
          Re: strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-12 01:20 +0100
            Re: strange problem with usb wifi adapter David Wright <deblis@lionunicorn.co.uk> - 2021-12-12 03:00 +0100
            Re: strange problem with usb wifi adapter "Andrew M.A. Cater" <amacater@einval.com> - 2021-12-12 11:10 +0100
              Re: strange problem with usb wifi adapter <tomas@tuxteam.de> - 2021-12-12 11:30 +0100
                Re: strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-12 14:10 +0100
                Re: strange problem with usb wifi adapter Curt <curty@free.fr> - 2021-12-12 14:40 +0100
                Re: strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-15 11:10 +0100
                Re: strange problem with usb wifi adapter Curt <curty@free.fr> - 2021-12-15 12:40 +0100
                Re: strange problem with usb wifi adapter "Andrew M.A. Cater" <amacater@einval.com> - 2021-12-15 19:00 +0100
                Re: strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-16 02:30 +0100
                Re: strange problem with usb wifi adapter Long Wind <longwind2@yahoo.com> - 2021-12-16 04:30 +0100
                Re: strange problem with usb wifi adapter <tomas@tuxteam.de> - 2021-12-12 14:40 +0100
              Re: strange problem with usb wifi adapter Curt <curty@free.fr> - 2021-12-12 14:00 +0100
  Re: strange problem with usb wifi adapter Joe <joe@jretrading.com> - 2021-12-11 16:00 +0100
    Re: strange problem with usb wifi adapter Andrei POPESCU <andreimpopescu@gmail.com> - 2021-12-12 10:00 +0100
      Re: strange problem with usb wifi adapter Brian <ad44@cityscape.co.uk> - 2021-12-12 13:00 +0100

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