3

I just bought the XPS 13 developer edition (14.04). It worked perfectly, wifi was good etc. But after turning on my device this Monday my computer wasn't able to make a connection anymore with a wifi device. In the top bar "no network devices available" is displayed while "enable networking" is checked. I know it's a common problem, but the solutions given for related questions never work out for me, since my connection is totally gone. How am I able to update drivers etc without internet? Any help will be much appreciated. Thanks in advance.

jeroen@jeroen-XPS-13-9350:~$ dkms status
btusb-iwlwifi-intel8260, 1.7, 3.19.0-33-generic, x86_64: installed
btusb-iwlwifi-intel8260, 1.7, 3.19.0-66-generic, x86_64: installed
intel-hid, 2.0, 3.19.0-33-generic, x86_64: installed
intel-hid, 2.0, 3.19.0-66-generic, x86_64: installed
oem-audio-hda-daily-lts-vivid, 0.201512022217~ubuntu14.04.1, 3.19.0-33-generic, x86_64: installed
oem-audio-hda-daily-lts-vivid, 0.201512022217~ubuntu14.04.1, 3.19.0-66-generic, x86_64: installed
realtek-rts-cr, 1.4.3oem2, 3.19.0-33-generic, x86_64: installed
realtek-rts-cr, 1.4.3oem2, 3.19.0-66-generic, x86_64: installed
synaptic-i2c-hid-3.13.0-32-backport, 1.6.4: added

enter image description here

Pilot6
  • 92,041
Jeroen Bastijns
  • 33

2 Answers2

0

The answer is clear. You updated the kernel and now unsigned 3rd party kernel modules, like btusb-iwlwifi-intel8260 can't load with Secure Boot enabled in BIOS.

The easiest solution is to disable it. In this case everything should work as before.

As I noted in comments, with new kernels you do not need 3rd party modules to use this wireless adapter. You can upgrade the kernel to 4.4.

But in this case you should remove ALL 3rd party dkms modules, and the system may need some manual setup.

Pilot6
  • 92,041
0

I was having the same problem after using Software Updater. As Pilot6 mentioned, you can disable Secure Boot which will allow the updated modules to run. You should understand the security implications of doing so.

Since this is a Dell, press F12 on boot, then select Other Options > BIOS Setup. Secure Boot > Disable

drew
  • 116