After a repair (motherboard replacement) and BIOS update for my Lenovo yoga 2 pro, I can no longer connect via wireless. The option is simply missing from the dropdown where it was previously present:
Reading up on this issue a bit, I've looked in BIOS, where it says that wireless is enabled:
And I've also checked, that a wireless interface is available and not blocked (hardware block was an issue with earlier Ubuntu versions for this laptop):
[email protected]:~$ rfkill list all 0: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no 1: ideapad_bluetooth: Bluetooth Soft blocked: yes Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no
The output of
lspci -knn | grep Net -A2 is empty. When running
lspci the output is the following:
[email protected]:~$ lspci 00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09) 00:04.0 Signal processing controller: Intel Corporation Device 0a03 (rev 09) 00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) 00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04) 00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04) 00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04) 00:1f.6 Signal processing controller: Intel Corporation 8 Series Thermal (rev 04) [email protected]:~$
sudo lshw -class network only shows an ethernet interface:
[email protected]:~$ sudo lshw -class network *-network description: Ethernet interface physical id: 3 logical name: enp0s20u2 serial: 02:64:70:6c:6a:06 capabilities: ethernet physical configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.78 link=yes multicast=yes
With that, I've come to the end of where I think I could look and from what I've found in similar questions asked online. Logging out and in has no effect, neither do changing BIOS settings and
rfkilling to unblock interfaces (which are not blocked, as shown above). There is no 'Secure boot' option to turn off in BIOS (as was suggested in some other threads).
Any suggestions as to where I could look? As the repair shop told me they updated the BIOS, I'm thinking there might be a setting there that I need to change.
PS for completeness, the other relevant BIOS-page. On this page, I've tried disabling the 'Lenovo fast boot' option (here still set):
The 'security' tab has the option of setting some passwords (which are all not set)