I am trying to move my wife over to Manjaro. I have set up dual boot on a X1 Carbon. Using KDE, all went well. Everything was working, including the wifi. Suddenly the applet shows no networks and says " No available connections" Unfortunately the X1 does not have an ethernet port so I am somewhat stumped as to what has happened. Its not a hardware issue as wifi works fine under Windows.
Just tried the USB key I used to install the OS. Wifi is working !!
Totally understand. As I have no connectivity on my wifes machine it makes faultfinding very difficult. I cannot easily show error messages, apart from taking photos with my phone and posting them here. More than happy to do that if that will help.
Which carbon gen is it? Gen 9 uses wifi 6 for example…
Do you have several kernel versions installed, i.e. lts and perhaps newer version? My understanding is that they have recently implemented support for wifi 6 in kernel 5.11.
You could try to boot into the one or other. Else you need an ethernet dongle to troubleshoot I guess.
ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wwp0s20u4i6: <BROADCAST,MULTICAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether ea:db:f5:59:dd:56 brd ff:ff:ff:ff:ff:ff
[alison@alison-34608z5 ~]$ ip link set wwp0s20u4i6 up
RTNETLINK answers: Operation not permitted
[alison@alison-34608z5 ~]$ sudo ip link set wwp0s20u4i6 up
[sudo] password for alison:
[alison@alison-34608z5 ~]$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wwp0s20u4i6: <BROADCAST,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 1000
link/ether ea:db:f5:59:dd:56 brd ff:ff:ff:ff:ff:ff