Re: [PATCH] device: prefer wifi over wwan by default

[Jean-Christian de Rivaz <jc eclis ch>]

Le 22. 07. 15 17:56, Dan Williams a écrit :
> On Wed, 2015-07-22 at 10:53 +0200, Lubomir Rintel wrote:
> > On Tue, 2015-07-21 at 11:37 +0200, Tore Anderson wrote:
> > > This makes wifi preferred to wwan (the modem and bluetooth device
> > > types
> > > to be specific) by default, so that users that care about being
> > > connected at all times can keep both enabled with auto-connect. As
> > > wifi
> > > is usually unmetered and often faster than wwan, it makes sense to
> > > prefer it. This is also how pretty much every smart-phone in the
> > > world
> > > behaves, so it aligns better with user expectations too.
> > >
> > > https://bugzilla.gnome.org/show_bug.cgi?id=744754
> > > ---
> > >   src/devices/nm-device.c | 8 ++++----
> > >   1 file changed, 4 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/src/devices/nm-device.c b/src/devices/nm-device.c
> > > index eba15a3..332182a 100644
> > > --- a/src/devices/nm-device.c
> > > +++ b/src/devices/nm-device.c
> > > @@ -721,14 +721,14 @@ nm_device_get_priority (NMDevice *self)
> > >                 return 400;
> > >         case NM_DEVICE_TYPE_BRIDGE:
> > >                 return 425;
> > > -       case NM_DEVICE_TYPE_MODEM:
> > > -               return 450;
> > > -       case NM_DEVICE_TYPE_BT:
> > > -               return 550;
> > >         case NM_DEVICE_TYPE_WIFI:
> > >                 return 600;
> > >         case NM_DEVICE_TYPE_OLPC_MESH:
> > >                 return 650;
> > > +       case NM_DEVICE_TYPE_MODEM:
> > > +               return 700;
> > > +       case NM_DEVICE_TYPE_BT:
> > > +               return 750;
> > >         case NM_DEVICE_TYPE_GENERIC:
> > >                 return 950;
> > >         case NM_DEVICE_TYPE_UNKNOWN:
> >
> > Thank you. Applied to master & 1.0 stable branch.
> I'm OK with this too, though the original idea was that more
> "intentional" connections would be preferred.  eg, WWAN is a lot less
> automatic than WiFi, and often costs you more money, thus if you
> activate a WWAN device you probably want to use it...

Hi Dan,

As a user I have to disagree with your doubt on this welcome change.

While WiFi at least imply that the user select an SSID, there exists SIM 
cards that are delivered configured to not require a PIN code or a APN 
password from the user. This make the cellular modem connection even 
'less intentional' than a WiFi connection from a user point of view. 
Still the cellular modem is far more costly than the WiFi, so it's logic 
to select the WiFi over the cellular modem by default.

As a traveler, I alway want to select the WiFi over the cellular modem 
even if the cellular modem is fully configured, to obviously avoid a 
much as possible the cellular modem roaming cost when a nearby WiFI 
provides a good enough internet access.

Can't understand why it was not the default from the beginning.

Regards,

Jean-Chriatian