Hello
Do those patches fix this kind of bug?
https://gitlab.com/mobian1/issues/-/issues/322
My pinephone has become very painful to use, I have to reboot about 5 times a
day, I lose the connection quite often.
> Message du 18/06/21 12:43
> De : "Bjørn Mork"
> A : "Aleksander Morgado"
> Copie à : "Carl Yin(殷张成)" , "ModemManager (development)"
> Objet : Re: EG25 integration patches in plasma mobile
>
> Aleksander Morgado writes: > The people at KDE are working on some patches
> to better integrate the > EG25 under suspend/resume events; they're changing
> not only power > related sysfs attributes, but also patching certain parts of
> the > kernel drivers, including the cdc-wdm driver. > >
> https://invent.kde.org/teams/plasma-mobile/issues/-/issues/3 > > Any chance
> you could take a look at that merge request and provide > your own comments
> on the issue? The kernel stuff should obviously be reviewed by kernel
> experts. Not me :-) Anyway, this looks like an attempt to work around a host
> controller issue by making the device driver ignore part of the spec. It
> might work for this specific case where the USB device has retained its
> state, IIUC. But that is usually not the case with USB modmes. The
> reset_resume logic and background is documented in
> Documentation/driver-api/usb/persist.rst The solution works fine if both
> system and device retains state. But modems don't do that if they lose power
> during suspend. I believe we have to trust the host controller, and if it
> says reset then we have to reset. Bjørn
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