0

I'm on 22.04.1 with kernel 5.15.0-56-generic.

I got this EDUP brand adapter because it said it was Linux compatible. It also said what its chip was. lsusb confirms it to be the chip:

Bus 001 Device 006: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]

I plugged it in and nothing happened. After a reboot there was still no wireless network adapter detected in system settings. After some searching I followed the instructions here. No errors. But after the reboot there's still no network adapter found by Ubuntu even though lsusb shows the device when plugged into different ports.

Where should I go from here? Could this be a secure boot issue? The instructions say it should be fine but I was asked to set a secure boot pw by the install script which was weird since I had already set it during the Ubuntu install.

sudo modprobe 88x2bu && sudo dmesg | grep -i 88x2bu

comes up with:

modprobe: ERROR: could not insert '88x2bu': Operation not permitted

H3R3T1K
  • 2,401
  • @Nmath Unfortunately no. I'm at the troubleshooting stage. I installed the driver the right way from the source recommended in the other post. Could this be a secure boot issue? It's enabled on my system. See updated post text. – H3R3T1K Jan 05 '23 at 21:43
  • Please edit your question to show the result of the terminal command: sudo modprobe 88x2bu && sudo dmesg | grep -i 88x2bu – chili555 Jan 05 '23 at 21:47
  • @guiverc I've included the details. – H3R3T1K Jan 05 '23 at 21:52
  • "Operation not permitted" means Secure Boot issue. Does it work if you turn off Secure Boot? – chili555 Jan 05 '23 at 22:09
  • @chili555 Disabling secure boot fixed it. Adapter was detected and I could connect to wifi network fine. Should I delete the post? – H3R3T1K Jan 06 '23 at 10:15
  • No need. It was closed for you. Glad it's working. – chili555 Jan 06 '23 at 15:49

0 Answers0