[wifi] how to fix wrong regdom?

flu

With a Nexus 5 otherwise running fine and with locale set to German, I cannot connect to wifi channels 12 and 13, that are legal channels in Germany. I've so far tried setting regdom via

$ adb shell sudo iw reg set DE

(no error message), but that doesn't seem to have any effect:

$ adb shell iw reg get
country 00: DFS-UNSET
	(2402 - 2472 @ 40), (6, 20), (N/A)
	(2457 - 2482 @ 20), (6, 20), (N/A), NO-IR
	(2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, NO-IR
	(5170 - 5250 @ 40), (6, 20), (N/A), NO-IR
	(5735 - 5835 @ 40), (6, 20), (N/A), NO-IR
$ adb shell iwlist wlan0 channel
wlan0     20 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 36 : 5.18 GHz
          Channel 40 : 5.2 GHz
          Channel 44 : 5.22 GHz
          Channel 48 : 5.24 GHz
          Channel 149 : 5.745 GHz
          Channel 153 : 5.765 GHz
          Channel 157 : 5.785 GHz
          Channel 161 : 5.805 GHz
          Channel 165 : 5.825 GHz

system information:

$ adb shell system-image-cli --info
b'<elided>\n'
current build number: 4
device name: hammerhead
channel: ubports-touch/16.04/stable
last update: 2018-12-10 09:26:26
version version: 4
version ubports: 20181126-12599
version tag: OTA-6
version keyring: archive-master
version device: 20181126-2421

firmware version (latest, I think):

$ adb shell /usr/share/ofono/scripts/list-modems
[ /ril_0 ]
    Revision = M8974A-2.0.50.2.30
[...]

I did observe the problem with OTA-5 already. Any suggestions how to activate wifi channels 12 and 13? The device feels one-eyed. :-(

flu

Can anybody confirm UT supporting local radio regulation? That is, regulatory domain is not set to 00 (worldwide) on a device? A shell command to check your device would be

$ iw reg get

The first line of output should contain a valid two-letter country code. Or is 00 what UT users get?

jezek

$ iw reg get
country 00: DFS-UNSET
	(2402 - 2472 @ 40), (3, 20), (N/A)
	(2457 - 2482 @ 40), (3, 20), (N/A), NO-IR
	(2474 - 2494 @ 20), (3, 20), (N/A), NO-OFDM, NO-IR
	(5170 - 5250 @ 80), (3, 20), (N/A), NO-IR
	(5250 - 5330 @ 80), (3, 20), (N/A), NO-IR
	(5490 - 5710 @ 80), (3, 20), (N/A), NO-IR
	(5735 - 5835 @ 80), (3, 20), (N/A), NO-IR
	(57240 - 63720 @ 2160), (N/A, 0), (N/A)

$ iwlist wlan0 channel
wlan0     32 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 12 : 2.467 GHz
          Channel 13 : 2.472 GHz
          Channel 14 : 2.484 GHz
          Channel 36 : 5.18 GHz
          Channel 40 : 5.2 GHz
          Channel 44 : 5.22 GHz
          Channel 48 : 5.24 GHz
          Channel 52 : 5.26 GHz
          Channel 56 : 5.28 GHz
          Channel 60 : 5.3 GHz
          Channel 64 : 5.32 GHz
          Channel 100 : 5.5 GHz
          Channel 104 : 5.52 GHz
          Channel 108 : 5.54 GHz
          Channel 112 : 5.56 GHz
          Channel 116 : 5.58 GHz
          Channel 120 : 5.6 GHz
          Channel 124 : 5.62 GHz
          Channel 128 : 5.64 GHz
          Channel 132 : 5.66 GHz
          Channel 136 : 5.68 GHz
          Current Frequency:2.422 GHz (Channel 3)

$ system-image-cli -i
b'54224609\n'
current build number: 24
device name: FP2
channel: ubports-touch/16.04/rc
last update: 2018-11-29 15:59:26
version version: 24
version ubports: 20181126-12599
version tag: 2018-W48
version keyring: archive-master
version device: 20181126-29395

Edit: added iwlist wlan0 channel output

flu

@jezek Hmm … doesn't look too exciting. :-( Can anybody share some information, if that is intentional behaviour?

flu

Found a related bug report: Hammerhead: Some Wifi networks don't appear #714.