Signal quality not updated with Quectel EG25 through QMI

[Frederic Martinsons]

Hello,

I recently updated by system to drop ppp/AT usage for CDC. Now my EG25 dongle work through qmi-wwan driver and libqmi.

But I began to experience a major difference with the old protocol method. My signal quality is not updated anymore (the information output in Status chapter of mmcli -m any stays "cached").

By the way, I use ModemManager 1.16.6 and libqmi 1.28.8

>From what I understand by reading the code, when using ppp/AT commands, ModemManager poll regularly the signal quality but with QMI , it registers to indicator events and wait for indicator (from libqmi ? from qmi-wwan driver ? from the modem firmware ? I don't know yet)

I see this worrying log in ModemManager debug log:

ModemManager[1369]: <debug> [modem0] extended signal information reporting disabled (rate: 0 seconds)

And I only received one signal quality value after that, this is completely silent.

This seems logical (even I don't know why the refresh rate is set to 0 by default) and I manually set the refresh rate with mmcli -m any --signal-setup=30 but this doesn't change anything and the signal quality keeps being not updated.

I checked that via the signal quality in mmcli output which state in "cached" state while running mmcli -m any --signal-get gives info that are updated.

Do you know where the problem came from (the 0 default refresh rate and the not updated signal quality) ?

Thanks in advance for any help you can bring to me.


Your privacy is important to us. Please see our Privacy Notice<https://www.sigfox.com/en/privacy-and-cookies-policy> for further details. The information contained in this Message is confidential. If you are not the addressee, you may not copy, forward, disclose or use any part of it. If you have received this Message in error, please delete it and all copies from your system and notify the sender immediately by return message. Any use of information contained in this Message not in accordance with its intended purpose, any dissemination or disclosure (either whole or partial), is prohibited unless expressly authorized. Email communication cannot be guaranteed to be timely secure, error or virus-free. The sender cannot be held responsible for any alteration, errors or omissions, which arise as a result.

..................................................................................................................

La protection de vos données personnelles est primordiale pour notre établissement. Merci de consulter notre notice sur la protection des données personnelles <https://www.sigfox.com/en/privacy-and-cookies-policy> pour plus d'informations. Ce message et toutes les pièces jointes (ci-après le 'Message') sont établis à l'intention exclusive des destinataires. Les informations qui y figurent sont confidentielles. Si vous n'êtes pas le destinataire de ce Message, il vous est interdit de le copier, de le faire suivre, de le divulguer ou d'en utiliser tout ou partie. Si vous avez reçu ce Message par erreur, merci de le supprimer de votre système, ainsi que toutes ses copies, et de n'en garder aucune trace sur quelque support que ce soit. Veuillez également en avertir immédiatement l'expéditeur par retour du Message. Toute utilisation de ce Message non conforme à sa destination, toute diffusion ou toute publication totale ou partielle, est interdite sauf autorisation expresse. Il est impossible de garantir que les communications par messagerie électronique arrivent en temps utile, soient sécurisées ou dénuées de toute erreur ou virus. L'expéditeur ne peut être tenu responsable des modifications, erreurs ou omissions qui pourraient en résulter.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/modemmanager-devel/attachments/20210930/20afdfca/attachment.htm>