Re: wifimgr with iwlwifi

On Fri, 1 Apr 2022, Bjoern A. Zeeb wrote:

> On Sat, 26 Mar 2022, J.R. Oldroyd wrote:
>
> Hi,
>
>> On Sat, 26 Mar 2022 09:58:12 -0700 Kevin Oberman <rkoberman@gmail.com> 
>> wrote:
>>> 
>>> On Sat, Mar 26, 2022 at 3:28 AM Takashi Inoue 
>>> <inoue.takashi@nihon-u.ac.jp>
>>> wrote:
>>> 
>>>> Do you use "wifimgr" which is a GUI tool to select AP.
>>>> When I use "if_iwlfiwi.ko", wave strength displayed
>>>> in wifimgr is 0 for all access point.
>>>> Do you see this phenomenon? Or, does someone see this?
>>>> 
>>>> Best,
>>>> Takashi
>>>> 
>>> 
>>> I'll have to leave the wifimge to others.
>> 
>> Wifimgr parses the output of "ifconfig -v wlanN list scan" in order to
>> compute the number of bars to display for the signal strength.
>> 
>> With the iwm driver, I see s/n values like -49:-96 for my network.
>
> I am actually not sure if the values in iwm are correct;  there is a
> factor-2 calculation in there which I believe is only done for max tx
> power of older cards based on eeprom values but not for the rssi
> anymore in iwlwifi.  I haven't started digging where that originated,
> so hard to say.
>
>
>> But with the iwlwifi driver, the values for the same network are -121:-96 .
>> 
>> This large negative value for the signal strength is causing wifimgr
>> to compute the number of bars as 0.
>
> Quick shot.  I just pushed two changes to main for anyone who wants to
> try.
>
> If you are on stable/13 and want to test them early you can (unitl
> they'll be merged):
>
> git cherry-pick -x 4a22cd6c4e5f4fc4a38aa7400742d4005c5ae3de
> git cherry-pick -x 60970a328e280b25b05f1d9a9de1ef91af573c4a
>
> Let me know if values start to look more reasonable.

Okay, changes are in stable/13 now as well.  Let me know if things got
better please.

Bjoern

-- 
Bjoern A. Zeeb                                                     r15:7