Upgraded 15.2 to 15.3 - no usb wifi module works - they all worked in 15.2

English Network/Internet
1

I had 3 desktops with a usb wifi dongle that worked fine in 15.2 - no matter what I tried - not a single one shows wifi in the network manager.
All 4 brands of wifi dongles show in the lsusb command - no matter what port I plug them into.

I did over 25 Dell Laptops with wifi and no problems.

Any Hints would be nice - I had to re-install 15.2 from a backup to use the 3 desktops (all different motherboards and cpu’s).

The wifi are fine in 15.2.

What went wrong with 15.3 and wifi dongles.

Step by step to make work would be nice.

2

Are packages kernel-default-optional and kernel-default-extra installed? If yes and it still does not work you need to provide information about your hardware.

3

Post

lsusb

With all your Wifi dongles inside
We need the ID of each dongle.

Also post:

uname -a
4

That might have been the problem, I cannot access those machines for a week as the owners have left with them running 15.2. think all are multiple upgrades from the 43.x versions and I know that VirtualBox will not run unless they are installed and every computer that started with 43.x did not get those 2 packages.

I didn’t think of that at the time - just every wifi dongle I had I had to try.

5

OK, I tried a USB 15.3 that I tried on one of the desktops that would not work.
I used it on one of my Dell 7490’s - Yes the SanDisk is the 15.3 os and has the kernel extras and optionals installed so that thought was not the issue.
I looked at /etc/udev/rules.d/net (where network devices show up) and none were showing up - they did show up on the Dell 7490.

All desktops have 2 front USB 2.0 ports and 4 back USB 3.0 and 2 USB 2.0 ports. I tried both the front and rear ports and tried all 7 that did not have the SanDisk 15.3 in it.

I think something in the USB driver and udev are the issues.

I see a lot of /run/user/1000 errors that say udev cannot access this - I see that root root has the file and not user users - could that be it?

here is what lsusb looks like on 3 different models of the USB wifi that I have - I have dozens of the Realtek model to fix bad wifi that many machines have (Lenovo Ideacentre Stick 300 the number 1 problem with theses).

Bus 002 Device 002: ID 0781:5591 SanDisk Corp. Ultra Flair
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
Bus 001 Device 002: ID 0c45:6717 Microdia Integrated_Webcam_HD
Bus 001 Device 005: ID 148f:7601 Ralink Technology, Corp. MT7601U Wireless Adapter
Bus 001 Device 004: ID 0a5c:5832 Broadcom Corp. 5880
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 002 Device 002: ID 0781:5591 SanDisk Corp. Ultra Flair
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
Bus 001 Device 002: ID 0c45:6717 Microdia Integrated_Webcam_HD
Bus 001 Device 006: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]
Bus 001 Device 004: ID 0a5c:5832 Broadcom Corp. 5880
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 002 Device 002: ID 0781:5591 SanDisk Corp. Ultra Flair
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
Bus 001 Device 002: ID 0c45:6717 Microdia Integrated_Webcam_HD
Bus 001 Device 007: ID 148f:7601 Ralink Technology, Corp. MT7601U Wireless Adapter
Bus 001 Device 004: ID 0a5c:5832 Broadcom Corp. 5880
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

# This file was automatically generated by the /usr/lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.


# PCI device 0x8086:0x15d7 (e1000e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="e4:b9:7a:04:eb:02", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

# PCI device 0x8086:0x24fd (iwlwifi)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="3c:6a:a7:7e:40:0f", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

# USB device 0x148f:0x7601 (usb)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="20:e6:16:00:8f:11", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan1"

# USB device 0x148f:0x7601 (usb)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="20:e8:17:07:f4:1d", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan2"
llrainey@VM1:/tmpx>
6

First:

Bus 001 Device 005: ID 148f:7601 Ralink Technology, Corp. MT7601U Wireless Adapter

modprobeid 148f:7601
Kernelmodulname mt7601u mt7601u mt7601u mt7601u mt7601u
modinfo: ERROR: Module mt7601u
mt7601u
mt7601u
mt7601u
mt7601u not found.

So this one should work, you have to install the Firmware from splitted kernel–firmware.

Second:

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

modprobeid 0bda:b812
Kernelmodulname
modinfo: ERROR: Module  not found.

This is not in the kernel, you need https://build.opensuse.org/package/show/home:Sauerland:hardware/rtl8822bu depending on your kernel and Distribution.

Third:
As first.

Please do not search for modprobeid, its a small written script and as you can see not handling all errors…
But working.

7

checked the USB 15.3 - kernel-firmware-all and a few others are installed.

I still think that is strange that 15.2 works with no issues but 15.3 cannot see any USB wifi in udev on that hardware. Works 100% correct on my laptop.

I even have the Broadcom wifi driver installed too (from packman).

8

ILL Broadcom Corp. 5880 is not a WiFi: https://linux-hardware.org/index.php?id=usb:0a5c-5801
https://blog.g3rt.nl/enable-dell-nfc-contactless-reader.html

9

On packman broadcom-wl is the Broadcom wifi code - it works fine in 15.2.

The problem is not a single adapter is showing up in /etc/udev/rules.d/70-persistent-net.rules like it does on my laptops.

They show with lsusb but not where the code to tell network that there is an adapter to use.

The people that I support (all seniors that barely can get teamviewer to work for support) that have 15.2 do not want to move to 15.3 as they cannot connect if they do.

I have made a dd copy of 15.2 to another file in another partition so that I can do a rollback via a bootable linux image (gecko version of opensuse - it allows saving files) that has the rollback script in it.

10

Put off the Wlan-Stick.
open an terminal, as root:

journalctl -f

Now insert the Wlan-Stick and post all new messages from the terminal.

11

Forget what I said.

I went to the person that had the problem.

He was plugging in the dongles in a broken ethernet port. All 8 USB ports had something in them - keyboard and mouse dongles - he bought new ones and never removed the old dongles.

It took me awhile to find the right mouse and keyboard dongles from the mess. I threw away the broken and not needed dongles.

He was not on the internet in 15.2 as he broke the dongle antenna off in the USB port.

I put a new dongle on the back and did a 15.2 to 15.3 update with no problems.

The user had no idea what a USB port is. He had almost 400 15.2 updates to do before I could do the 15.3 grade.

I have the computer to boot up with my diagnostic in windows - journalctl -f in one and iftop -i wlan0 in another, That is why I though nothing was working.

It is hard to diagnose when you cannot see the system - I sent him a bootable 15.2 and 15.3 USB device and have it on the grub menu - just in case. I took his word they were working.