Re: Intel 7260 AC only using 802.11n not AC

[Radu P]

On Tue, Apr 26, 2016 at 1:03 PM, Johannes Berg
<johan...@sipsolutions.net> wrote:
> On Tue, 2016-04-26 at 12:54 +0100, Radu P wrote:
>> Is there a way running
>>
>> ./iw dev wlanX link
>>
>> but to get the output for the 5 Ghz frequency?
>> now I am getting only this:
>>
>> freq: 2432
>> tx bitrate: 130.0 MBit/s MCS 14 short GI
>
> Sure: connect to a 5 GHz AP first :)
>
> johannes

What a journey. The router has both frequencies. Changed the BSSID and
now I am in the AC world.
Thank you all for your help!
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Re: Intel 7260 AC only using 802.11n not AC

[Radu P]

On Tue, Apr 26, 2016 at 12:40 PM, Kalle Valo <kv...@codeaurora.org> wrote:
> Radu P <rrr...@gmail.com> writes:
>
>> With the latest iw from the git repo I get:
>>
>> VHT Capabilities (0x038071a0):
>> Max MPDU length: 3895
>> Supported Channel Width: neither 160 nor 80+80
>> short GI (80 MHz)
>> TX STBC
>> SU Beamformee
>> VHT RX MCS set:
>> 1 streams: MCS 0-9
>> 2 streams: MCS 0-9
>> 3 streams: not supported
>> 4 streams: not supported
>> 5 streams: not supported
>> 6 streams: not supported
>> 7 streams: not supported
>> 8 streams: not supported
>> VHT RX highest supported: 0 Mbps
>> VHT TX MCS set:
>> 1 streams: MCS 0-9
>> 2 streams: MCS 0-9
>> 3 streams: not supported
>> 4 streams: not supported
>> 5 streams: not supported
>> 6 streams: not supported
>> 7 streams: not supported
>> 8 streams: not supported
>> VHT TX highest supported: 0 Mbps
>>
>> Is it OK that it is reporting  "VHT TX highest supported: 0 Mbps" ?
>
> Yeah, zero just means that the highest support rate is not defined. I
> guess it's nicer if iw would print "Not defined" instead of "0 Mbps" but
> nobody hasn't implemented that yet.
>
> --
> Kalle Valo


Is there a way running

./iw dev wlanX link

but to get the output for the 5 Ghz frequency?
now I am getting only this:

freq: 2432
tx bitrate: 130.0 MBit/s MCS 14 short GI
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Re: Intel 7260 AC only using 802.11n not AC

[Radu P]

On Tue, Apr 26, 2016 at 12:04 PM, Krishna Chaitanya
<chaitanya.m...@gmail.com> wrote:
> On Tue, Apr 26, 2016 at 4:20 PM, Kalle Valo <kv...@codeaurora.org> wrote:
>>
>> Radu P <rrr...@gmail.com> writes:
>>
>> > iw list|grep -i VHT  <- still nothing
>>
>> Maybe your iw is too old? I didn't see anything either (using stock iw
>> from Ubuntu 14.04) but then I upgraded to the latest one from git and
>> now I see:
>>
>>VHT Capabilities (0x338001b2):
>> Max MPDU length: 11454
>> Supported Channel Width: neither 160 nor 80+80
>> RX LDPC
>> short GI (80 MHz)
>> TX STBC
>> RX antenna pattern consistency
>> TX antenna pattern consistency
>> VHT RX MCS set:
>> 1 streams: MCS 0-9
>> 2 streams: MCS 0-9
>> 3 streams: MCS 0-9
>> 4 streams: not supported
>> 5 streams: not supported
>> 6 streams: not supported
>> 7 streams: not supported
>> 8 streams: not supported
>> VHT RX highest supported: 0 Mbps
>> VHT TX MCS set:
>> 1 streams: MCS 0-9
>> 2 streams: MCS 0-9
>> 3 streams: MCS 0-9
>> 4 streams: not supported
>> 5 streams: not supported
>> 6 streams: not supported
>> 7 streams: not supported
>> 8 streams: not supported
>> VHT TX highest supported: 0 Mbps
>>
>> And please don't top post.
>>
>> --
> "iw phy " should give necessary info.



With the latest iw from the git repo I get:

VHT Capabilities (0x038071a0):
Max MPDU length: 3895
Supported Channel Width: neither 160 nor 80+80
short GI (80 MHz)
TX STBC
SU Beamformee
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 0 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 0 Mbps

Is it OK that it is reporting  "VHT TX highest supported: 0 Mbps" ?
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Re: Intel 7260 AC only using 802.11n not AC

[Radu P]

iw list|grep -i VHT  <- still nothing

iw dev wlanX link
Connected to *.* (on wlan1)
SSID: *
freq: 2432
RX: 45056569 bytes (38259 packets)
TX: 5239816 bytes (27324 packets)
signal: -54 dBm
tx bitrate: 144.4 MBit/s MCS 15 short GIc0:3e:0f:d6:54:b9

bss flags: short-preamble short-slot-time
dtim period: 1
beacon int: 100

On Tue, Apr 26, 2016 at 11:00 AM, Johannes Berg
 wrote:
> On Tue, 2016-04-26 at 02:56 -0600, Reinoud Koornstra wrote:
>> I'm also using the 7620 AC.
>> When I type:
>>
>> sudo iw dev wlp0s4 scan I see:
>>
>
> "scan" is completely irrelevant for what actually ends up getting used.
> "link" is relevant, but if you want to see the hardware capabilities
> (like what iwconfig is displaying - that field has no relation to the
> connection at all) then you need "iw list" or so.
>
> johannes
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Re: Intel 7260 AC only using 802.11n not AC

[Radu P]

I get no output when running:

iw dev wlan1 scan|grep VHT

Switched to firmware 16 and same result.

On Tue, Apr 26, 2016 at 10:01 AM, Kalle Valo <kv...@codeaurora.org> wrote:
> Radu P <rrr...@gmail.com> writes:
>
>> These is the relevant data:
>>
>> firmware-version: 17.265642.0
>>
>> [  292.689871] iwlwifi :04:00.0: loaded firmware version
>> 17.265642.0 op_mode iwlmvm
>> [  292.702902] iwlwifi :04:00.0: Detected Intel(R) Dual Band
>> Wireless AC 7260, REV=0x144
>>
>> wlan1 IEEE 802.11abgn <- not AC
>>
>> Kernel version: 4.4.0-21-generic #37~14.04.1-Ubuntu
>>
>> AC mode is working with Windows 10.
>
> Don't use iwconfig, it's ancient and deprecated. Use iw instead.
>
> --
> Kalle Valo
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Intel 7260 AC only using 802.11n not AC

[Radu P]

Hello,

These is the relevant data:

firmware-version: 17.265642.0

[  292.689871] iwlwifi :04:00.0: loaded firmware version
17.265642.0 op_mode iwlmvm
[  292.702902] iwlwifi :04:00.0: Detected Intel(R) Dual Band
Wireless AC 7260, REV=0x144

wlan1 IEEE 802.11abgn <- not AC

Kernel version: 4.4.0-21-generic #37~14.04.1-Ubuntu

AC mode is working with Windows 10.

Any help is appreciated!
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