1074752 - [woodduck][Settings]The Region and City can change in Time zone after turn on Set automatically

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: Gaia::Settings, defect)

Description

[Mike Lien[:mlien]]

This nomination is a dup bug to confidential one due to public tracking

+++ This bug was initially created as a clone of Bug #1069128 +++
    [Instructions]
      1.Enter settings-->Date&Time
      2.Turn on "Set automatically"

    [Expected]
    Time zone show normal

    [Error]
    The "Region" and "City" can change in Time zone

Comment 2

[Mike Lien[:mlien]]

I made a big mistake, duplicate the wrong way

Comment 3

[Mike Lien[:mlien]]

[Blocking Requested - why for this release]:
2.0 generic issue

Comment 5

[[e-mail]]

Can reproduce with TWM sim card, will start finding root cause.


STR (from arthur):
(with a TWM sim card where the network time info is provided via data connection.)
1. Launch settings and ensure data connection is disabled.
2. Go to date & time panel.
3. Go to cellular & data panel and enable data connection.
4. Go back to date & time panel and disable auto-config.

Comment 6

[[e-mail]]

In this case, when auto-config is enabled, 

'time.timezone.automatic-update.available' is false 
'time.clock.automatic-update.enabled' is true

So the selector is not disabled.

Comment 7

[shawn ku [:sku]]

Is this one a bug? or by design?

Device receive the time info via SNTP, not from NITZ.
SNTP did not contain Time zone info.

Comment 8

[[e-mail]]

(According to sein lin in bug 1069128 comment 9)
When time zone info is available and time.timezone.automatic-update.enabled==true, the timezone will be updated automatically[1].

[1] http://dxr.mozilla.org/mozilla-central/source/dom/system/gonk/RadioInterfaceLayer.js#3126


Therefore, when 'time.timezone.automatic-update.available' is false, we can't get timezone update automatically. In this case, the Region & City should be selectable by design?

Comment 9

[shawn ku [:sku]]

(In reply to Fred Lin [:gasolin] from comment #8)
> (According to sein lin in bug 1069128 comment 9)
> When time zone info is available and
> time.timezone.automatic-update.enabled==true, the timezone will be updated
> automatically[1].
> 
> [1]
> http://dxr.mozilla.org/mozilla-central/source/dom/system/gonk/
> RadioInterfaceLayer.js#3126
> 
> 
> Therefore, when 'time.timezone.automatic-update.available' is false, we
> can't get timezone update automatically. In this case, the Region & City
> should be selectable by design?

Hi Fred, I think this should be by design although the UI might confuse user a little bit.

Comment 10

[Arthur Chen [:arthurcc][inactive after 6/30]]

Per the discussion with Shawn, there is a UX issue here. Auto time and auto timezone information are provided separately but we only have one toggle and which leads to confusion. We may need two separate toggles corresponding to auto time and auto timezone.

Flagging Jenny for her inputs.

Comment 11

[shawn ku [:sku]]

Hi there:
 Per Moz offline discussion, this is not a bug.

The root cause for Region/City is still changeable was caused by SNTP info.
SNTP only provide time stamp for current time, but do not have Time Zone info.
That's why Region/City is still available to user.

If device got NITZ, Region/City is unavailable to user.

We will file a bug for UX to discuss/add "Automatic Time Zone" option in future, but this will not be in 2.0m/2.0 branch.

Comment 12

[Josh Cheng [:josh]]

Won't fix, remove blocking-b2g flag