My laptop has rfkill functionality for its build in wwan. On startup "nmcli radio" properly reports: WWAN-HW enabled WWAN enabled I can then soft-block it by doing either "nmcli radio wwan off" or "rfkill block wwan" after which "nmcli radio" properly reports: WWAN-HW enabled WWAN disabled If I then unblock it through either of "nmcli radio wwan on" or "rfkill unblock wwan", then "nmcli radio" wrongly reports: WWAN-HW enabled WWAN disabled While "rfkill list" does show the radio is no longer blocked, and actually connecting the wwan using: nmcli c up "T-Mobile Default" Works, even though nmcli radio reports it is disabled, and keeps reporting it as disabled after a successful nmcli c up.
What is the hardware: lspci? Would you attach 'rfkill list' output, so that we can see the modules? You can set debug NM logging using: $ sudo nmcli g l level DEBUG Or just log RFKILL actions: $ sudo nmcli g l domains RFKILL level DEBUG (back to default: $ sudo nmcli g l domains DEFAULT level INFO)
lspci: 00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4) 00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4) 00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4) 00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 4 (rev c4) 00:1c.5 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 6 (rev c4) 00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM77 Express Chipset LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04) 02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34) 0b:00.0 SD Host controller: O2 Micro, Inc. Device 8221 (rev 05) rfkill list: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 4: phy0: Wireless LAN Soft blocked: no Hard blocked: no 5: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no 6: dell-bluetooth: Bluetooth Soft blocked: no Hard blocked: no 7: dell-wwan: Wireless WAN Soft blocked: no Hard blocked: no I've run a couple of tests with RFKILL level set to DEBUG, and I think I've figured out what is going on, here is a bit of logs: Oct 15 21:26:00 localhost NetworkManager[679]: <debug> [1381865160.944562] [nm-rfkill-manager.c:210] recheck_killswitches(): WWAN rfkill platform switch rfkill4 state now 0/1 Oct 15 21:26:00 localhost NetworkManager[679]: <debug> [1381865160.944681] [nm-rfkill-manager.c:210] recheck_killswitches(): WiFi rfkill platform switch rfkill2 state now 1/0 Oct 15 21:26:00 localhost NetworkManager[679]: <debug> [1381865160.944759] [nm-rfkill-manager.c:210] recheck_killswitches(): WiFi rfkill switch rfkill1 state now 1/0 Oct 15 21:26:00 localhost NetworkManager[679]: <debug> [1381865160.944770] [nm-rfkill-manager.c:237] recheck_killswitches(): WWAN rfkill state now 'soft-blocked' Oct 15 21:26:00 localhost NetworkManager[679]: <debug> [1381865160.944787] [nm-manager.c:1811] manager_rfkill_update_one_type(): WWAN hw-enabled 1 sw-enabled 0 daemon-enabled 0 Oct 15 21:26:00 localhost NetworkManager[679]: <info> WWAN now disabled by radio killswitch Oct 15 21:26:40 localhost NetworkManager[679]: <debug> [1381865200.47021] [nm-manager.c:4644] manager_radio_user_toggled(): (WWAN): setting radio enabled by user Oct 15 21:26:40 localhost NetworkManager[679]: <debug> [1381865200.53630] [nm-manager.c:1666] manager_update_radio_enabled(): (ttyUSB2): setting radio enabled Oct 15 21:26:40 localhost ModemManager[633]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (disabled -> enabling) Oct 15 21:26:40 localhost ModemManager[633]: <warn> (ttyUSB2): port attributes not fully set Oct 15 21:26:40 localhost ModemManager[633]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (unknown -> registering) Oct 15 21:26:40 localhost ModemManager[633]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (unknown -> idle) Oct 15 21:26:40 localhost ModemManager[633]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (registering -> home) Oct 15 21:26:40 localhost ModemManager[633]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (home -> idle) Oct 15 21:26:41 localhost ModemManager[633]: <info> Modem /org/freedesktop/ModemManager1/Modem/0: state changed (enabling -> enabled) Oct 15 21:26:41 localhost NetworkManager[679]: <info> WWAN now enabled by management service Oct 15 21:26:41 localhost NetworkManager[679]: <debug> [1381865201.168452] [nm-manager.c:1811] manager_rfkill_update_one_type(): WWAN hw-enabled 1 sw-enabled 0 daemon-enabled 1 It seems that NetworkManager / ModemManager reads but never sets the rfkill software block for wwan, so once I've done a "rfkill block wwan" the output of "nmcli radio" will always report: WIFI-HW WIFI WWAN-HW WWAN enabled enabled enabled disabled If I do rfkill unblock wwan, then "nmcli radio wwan on / off" does toggle the WWAN disabled state. So it seems that the problem is that "nmcli radio wwan" only reads and never writes the rfkill software block state for wwan. This means that if the wwan rfkill has been software blocked NetworkManager is unable to unblock it, so the user has to resort to the cmdline. This is also inconsistent compared to the "nmcli radio wifi" behavior which does control rfkill (both blocking on off and unblocking on on).
There are some inconsistencies with WWAN enable handling, because there are more levels of 'enable' with WWAN than with eg WiFi or Bluetooth. I started a branch a long time ago (dcbw/wwan-fixes) to start addressing these problems, including toggling kernel WWAN rfkill state when appropriate. I think at least the first two commits in that branch would be appropriate, I could re-test them and propose them for merge. Jirka, can you do a quick review of those first two commits in that branch and see what you think?
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