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Re: strange problem with usb wifi adapter

From Long Wind <longwind2@yahoo.com>
Newsgroups linux.debian.user
Subject Re: strange problem with usb wifi adapter
Date 2021-12-11 23:10 +0100
Message-ID <DtiJ4-k8-9@gated-at.bofh.it> (permalink)
References <Dt3gZ-7OO-5@gated-at.bofh.it> <Dt3gZ-7OO-3@gated-at.bofh.it> <Dt9w6-3bo-9@gated-at.bofh.it> <DtgnU-7f0-9@gated-at.bofh.it>
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Thanks to all that reply!

David is right, lsusb:
Bus 002 Device 004: ID 148f:7601 Ralink Technology, Corp. MT7601U Wireless Adapter

i do some interesting test, am able to reproduce my problem,
it reaffirm my suspicion that it's related to power cutoff,
something i can't explain because of my limited hardware knowledge  

i think my adapter uses mt7601u.bin in /lib/firmware
i remove firmware-misc-nonfree, wifi works even after reboot
though /lib/firmware/mt7601u.bin is gone

then i shutdown and unplug power cord and wait for half minute
i  plug power cord and boot, same problem arise
 lsusb can list my adapter, but "ip link" doesn't show it
and i have to install firmware-misc-nonfree to solve it

PS: i will leave home soon and return 12 hours later 

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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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