On 09/04/2020 03:47, comrade meowski
        wrote:
      
      On
        09/04/2020 00:02, Julian Hall wrote: 
        
        I have another Pi on WiFi which does
          work. I might try inserting that WiFi dongle /only/ to see
          what dmesg says about it. 
        
        
        Ok, so it does _need_ to work then, gotcha.
      In fairness /need/ may be over-emphasising it slightly as this
      email discussion among ither things has all been on that PC. More
      reliability and speed would be nice though.
      And
        you know the adaptor works in the same machine in the same USB
        port but under Windows - that's really helpful to know as well.
        Have you tried moving USB ports though while dmesg -wT is
        running? 
      I just tried all the ports of my powered hub, but as that's only
      using one port itself I also tried the single front mounted USB.
      All had identical output to the original one I posted. I could try
      a couple of the back ports, however I'm in a wheelchair; it's not
      impossibleby any means, but the voulme of swearing involved could
      be quite interesting :)
      Linux
        makes XHCI and USB3 more awkward than it needs to be so
        definitely try that. 
        
        Weren't some of your command outputs earlier showing a wlan
        device at times on your PC? I presumed that was another
        interface or you'd said you'd disabled it manually? Just
        checking we're not missing something insanely obvious and it's
        not actually popping up as wlan0.
      I don't recall seeing wlam0 mentioned in any of my output.
      I
        note it doesn't seem to be grabbing the firmware blob and
        loading it during the module insertion on the adaptor either.
        Might be time to write off this driver and choose one of the
        other github sources - annoyingly there are several of them to
        choose from. 
        
        Please remind me exactly what manufacturer make/model variant of
        this device you've got as well, better check some basics.
      This is what
        Amazon lists it as 'ASUS
          USB-AC68 Dual Band Wireless AC1900 USB Adapter, USB 3.0, 2 x
          External Adjustable Antenna with Stand MIMO, 3T4R, AiRadar
          Beamforming, Backward Compatible with USB 2.0 and 802.11
          a/b/g/n Standard'. I have a ASUS RT-AC68U router so the two
          should have been a perfect match - in fact it flies in Windows
          as it has the 5Ghz network all to itself. 
      We
        need to backtrack a bit and check it against a list like this: 
        
        https://easylinuxtipsproject.blogspot.com/p/realtek.html
      
      That page is familiar - it may well be where I obtained the
      rtl8814au driver which had to be taken off.
      And
        this time we'll be more careful about which random github
        project we choose. You also started off this whole thread by
        saying that the officially provided Ubuntu rtl8812au-dkms
        package didn't work as well right?
      I think so.. my problem is as often the case a lack of knowledge;
      I saw a Github link that said it has an rtl8814 driver for Linux,
      but only saw a page full of files which meant nothing to me when I
      opened it. I had fondly hoped for one file, or a DEB to download
      and install.
      Definitely
        pop it into the Pi just to see what dmesg spits out - a working
        Linux module running there would be great, we'll steal the info
        from it and leverage it to get the right one for your PC.
      After much fannying about trying to get the wireless keyboard
        working only to realise I was using a /Bluetooth/ dongle - DOH!
        - I did what I should have originally.. yes SSH is my friend.
        The Pi's output was pretty much the same. Should I leave well
        alone or try a Pi driver from the install CD?
      [Thu Apr  9 15:19:47 2020] usb 1-1.2: new high-speed USB device
        number 5 using dwc_otg
        [Thu Apr  9 15:19:47 2020] usb 1-1.2: New USB device found,
        idVendor=0b05, idProduct=1853
        [Thu Apr  9 15:19:47 2020] usb 1-1.2: New USB device strings:
        Mfr=1, Product=2, SerialNumber=3
        [Thu Apr  9 15:19:47 2020] usb 1-1.2: Product: 802.11ac NIC
        [Thu Apr  9 15:19:47 2020] usb 1-1.2: Manufacturer: Realtek
        [Thu Apr  9 15:19:47 2020] usb 1-1.2: SerialNumber: 123456
      
    
    meowski - you really should be able to go from the Product and
    vendor ID 's above .. they're -usually- unique .. (or certainly
    /should/ be...)