Terry Simons

Can confirm that options 8814au rtw_switch_usb_mode=1 placed in /etc/modprobe.d/8814au.conf works for me: ``` terry@sniffer01:~$ cat /etc/modprobe.d/8814au.conf options 8814au rtw_switch_usb_mode=1 terry@sniffer01:~$ cat /sys/module/8814au/parameters/rtw_switch_usb_mode 1 terry@sniffer01:~$ ```

Might be a bug in the XHCI drivers on your system, or you had a bad connection, or maybe the cable has issues. Does it happen every time you boot,...

I believe it got migrated from the aircrack-ng/rtl8812au driver, which used to be the driver I'd use to get my Alfa ac1900 USB 3 adapter working, but recently was updated...

As a datapoint, it's possible to "unstick" this behavior, by re-issuing: ``` $ sudo iw dev wlan1 set monitor none ``` Then after starting tcpdump again with `sudo tcpdump -i...

The two sed lines I used were updated. I fixed the original post to include `CONFIG_PLATFORM_ARM64 = y` as the correct way to build the driver on Ubuntu 20.10.

Oops, accidentally clicked "Close with comment". This issue is still valid.

It looks like 1MiB of unpartitioned space, and a 387422MiB FAT32 partition is the limit. 1MiB unformatted space + 387422MiB FAT32 partition succeeds, but 1MiB unformatted space + 387423MiB FAT32...

I was using the default "Align to MiB" option in gparted, so I wonder if looking at the cylinder boundaries would make more sense. 387422MiB isn't base-2 aligned, so I'm...

It does appear that a smaller partition with 4MiB of unpartitioned space will also work on these cards. Initially I wasn't having any luck but I believe it was due...

And just to confirm, the 400GB SanDisk Ultra U(1) A1 card *does* fail if I use a 4MiB unpartitioned space at the beginning, even if I shrink the FAT32 partition...