Wenn ich das richtig verstehe wird Wifi aus irgendeinem Grund deaktiviert.
Abgesehen von einem Hotkey für den Flugmodus finde ich aber weder am Gerät (Lenovo Yoga 2 13) noch im Handbuch eine Taste über die Wlan deaktiviert werden kann.
Im Netzwerkmanager wird Wifi als deaktiviert angezeigt und die Checkbox ist ausgegraut, also nicht bedienbar. Der Flugzeugmodus kann ein- und ausgeschaltet werden (allerdings nicht über den Hotkey).
Hier die Log-Einträge, die WLAN betreffen
19:21:27 kernel: rtl8723be: Using firmware rtlwifi/rtl8723befw.bin
19:21:27 kernel: ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
19:21:27 kernel: rtlwifi: rtlwifi: wireless switch is on
19:21:30 NetworkManager[851]: <info> devices added (path: /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/net/wlan0, iface: wlan0)
19:21:30 NetworkManager[851]: <info> device added (path: /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/net/wlan0, iface: wlan0): no ifupdown configuration found.
19:21:30 NetworkManager[851]: <info> Loaded plugin ifupdown: (C) 2008 Canonical Ltd. To report bugs please use the NetworkManager mailing list.
19:21:30 NetworkManager[851]: <info> Loaded plugin keyfile: (c) 2007 - 2015 Red Hat, Inc. To report bugs please use the NetworkManager mailing list.
19:21:30 NetworkManager[851]: <info> (268455552) ... get_connections.
19:21:30 NetworkManager[851]: <info> (268455552) ... get_connections (managed=false): return empty list.
19:21:30 NetworkManager[851]: <info> get unmanaged devices count: 0
19:21:30 NetworkManager[851]: <info> monitoring kernel firmware directory '/lib/firmware'.
19:21:30 NetworkManager[851]: <info> monitoring ifupdown state file '/run/network/ifstate'.
19:21:30 NetworkManager[851]: <info> rfkill3: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/ieee80211/phy0/rfkill3) (driver rtl8723be)
19:21:30 NetworkManager[851]: <info> rfkill0: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/VPC2004:00/rfkill/rfkill0) (platform driver ideapad_acpi)
19:21:30 NetworkManager[851]: <info> WiFi hardware radio set disabled
19:21:30 NetworkManager[851]: <info> WWAN hardware radio set enabled
19:21:30 NetworkManager[851]: <info> Loaded device plugin: /usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so
19:21:30 NetworkManager[851]: <info> Loaded device plugin: /usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wwan.so
19:21:30 NetworkManager[851]: <info> Loaded device plugin: /usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-wifi.so
19:21:30 NetworkManager[851]: <info> Loaded device plugin: /usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-adsl.so
19:21:30 NetworkManager[851]: <info> Loaded device plugin: /usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-team.so
19:21:30 NetworkManager[851]: <info> WiFi disabled by radio killswitch; disabled by state file
19:21:30 NetworkManager[851]: <info> WWAN enabled by radio killswitch; enabled by state file
19:21:30 NetworkManager[851]: <info> WiMAX enabled by radio killswitch; enabled by state file
19:21:30 NetworkManager[851]: <info> Networking is enabled by state file
19:21:30 NetworkManager[851]: <info> (lo): link connected
19:21:30 NetworkManager[851]: <info> (lo): carrier is ON
19:21:30 NetworkManager[851]: <info> (lo): new Generic device (driver: 'unknown' ifindex: 1)
19:21:30 NetworkManager[851]: <info> (lo): exported as /org/freedesktop/NetworkManager/Devices/0
19:21:30 NetworkManager[851]: <info> (wlan0): using nl80211 for WiFi device control
19:21:30 NetworkManager[851]: <info> (wlan0): driver supports Access Point (AP) mode
19:21:30 NetworkManager[851]: <info> (wlan0): new 802.11 WiFi device (driver: 'rtl8723be' ifindex: 2)
19:21:30 NetworkManager[851]: <info> (wlan0): exported as /org/freedesktop/NetworkManager/Devices/1
19:21:30 NetworkManager[851]: <info> (wlan0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
19:21:30 NetworkManager[851]: <info> (wlan0): preparing device
19:21:30 NetworkManager[851]: <info> (eth0): carrier is OFF
19:21:30 NetworkManager[851]: <info> (eth0): new Ethernet device (driver: 'r8152' ifindex: 3)
19:21:30 NetworkManager[851]: <info> (eth0): exported as /org/freedesktop/NetworkManager/Devices/2
19:21:30 NetworkManager[851]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
19:21:30 systemd-logind[858]: New seat seat0.
Ergänzung:
rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: yes
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: yes
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Das passt ja zum Log, ich kann aber beim besten Willen keinen Schalter finden
Ergänzung 2:
Durch den Flugmodusschalter kann "Soft blocked" getoggelt werden, Hard blocked bleibt aber immer an.
Und falls die Frage kommt, WLAN ist im BIOS aktiviert und unter Win funktioniert es auch.