1187250 - [Aries][Bluetooth]The Bluetooth state at Settings view does not display the device name

Status: RESOLVED WORKSFORME

(Firefox OS Graveyard :: Bluetooth, defect)

Description

[SandKing]

Attachment: Bug picture: Aries_v2.5.png

[1.Description]:
[Aries][2.5][Bluetooth]Pair device with other devices, then connect a Bluetooth headset. The Bluetooth state at Settings view does not display the name of headset.
See video: "Aries_v2.5.3GP".
See log:"logcat_0217.txt"
See picture: "Aries_v2.5.png"
Found Time:02:17

[2.Testing Steps]: 
1. Launch Settings.
2. Choose Bluetooth item.
3. Pair with more than 2 devices.
4. Connect to a Bluetooth headset
5. Back to Settings page

[3.Expected Result]: 
5. The Bluetooth state at Settings view should display as "device, + more".

[4.Actual Result]: 
5. The Bluetooth state at Setting view didn't display the name of headset.

[5.Reproduction build]: 
Aries v2.5 version (Affected)
Build ID               20150723024716
Gaia Revision          f04fdbfa1943dddeab8ecd1299a76ab56e590d00
Gaia Date              2015-07-22 18:44:09
Gecko Revision         https://hg.mozilla.org/mozilla-central/rev/2ddec2dedced
Gecko Version          42.0a1
Device Name            aries
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.worker.20150723.023231
Firmware Date          Thu Jul 23 02:32:39 UTC 2015
Bootloader             s1

Flame 2.2 version (Unaffected)
Build ID               20150723002503
Gaia Revision          e1e6317f17a840b19af9dbb25f5a771d8d9fa161
Gaia Date              2015-07-15 21:05:11
Gecko Revision         https://hg.mozilla.org/releases/mozilla-b2g37_v2_2/rev/d8326043baec
Gecko Version          37.0
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.cltbld.20150723.041700
Firmware Date          Thu Jul 23 04:17:12 EDT 2015
Firmware Version       v18D v4
Bootloader             L1TC000118D0

Flame master version (Unaffected)
Build ID               20150723160204
Gaia Revision          ec2199b324304d3678b6a98a08a31bdc13c9e984
Gaia Date              2015-07-23 17:16:25
Gecko Revision         https://hg.mozilla.org/mozilla-central/rev/cb8bdb8ffaef
Gecko Version          42.0a1
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.cltbld.20150723.193607
Firmware Date          Thu Jul 23 19:36:19 EDT 2015
Firmware Version       v18D v4
Bootloader             L1TC000118D0

[6.Reproduction Frequency]: 
Always Recurrence,5/5

[7.TCID]: 
1385 

[8. Note]:
This problem can be solved via Restart device.

Comment 1

[SandKing]

Attachment: Bug log: logcat_0217.txt

Comment 2

[SandKing]

Attachment: Bug video: Aries_v2.5.3GP

Comment 3

[Ben Tian (inactive)]

ni? gaia dev.

Fred, can you help check why Settings app display bluetooth state incorrectly? Paired devices are shown on bluetooth panel correctly but the state is incorrect per comment 2 video.

Comment 5

[[e-mail]]

I can reproduce with

1. 1 device paired
2. pair the headset

back to root panel and the name is not shown

Comment 6

[[e-mail]]

@jocelyn I found adapter.getPairedDevices() will get blank name when pairing headset after another device.


After tracing code I found the root panel will call `bluetooth.firstPairedDeviceName`
https://github.com/mozilla-b2g/gaia/blob/master/apps/settings/js/panels/root/bluetooth_item.js#L105
Which is set in bluetooth_context.
https://github.com/mozilla-b2g/gaia/blob/master/apps/settings/js/modules/bluetooth/bluetooth_context.js#L436

With above steps I got ''(blank) string for headset device and the correct string for other device. (I test by pairing Macbook Air then a BT headset)

Unpairing the other device (Macbook Air) then the headset name is shown again.


Could you help check it?

Comment 7

[Ben Tian (inactive)]

Fred, did you reproduce on the latest gecko build?

Bug 1181827's fix was landed yesterday and it also relates to empty pairing device name. Unsure whether it fixes this bug as well.

(In reply to Fred Lin [:gasolin] from comment #6)
> After tracing code I found the root panel will call
> `bluetooth.firstPairedDeviceName`
> https://github.com/mozilla-b2g/gaia/blob/master/apps/settings/js/panels/root/
> bluetooth_item.js#L105
> Which is set in bluetooth_context.
> https://github.com/mozilla-b2g/gaia/blob/master/apps/settings/js/modules/
> bluetooth/bluetooth_context.js#L436
> 
> With above steps I got ''(blank) string for headset device and the correct
> string for other device. (I test by pairing Macbook Air then a BT headset)
> 
> Unpairing the other device (Macbook Air) then the headset name is shown
> again.

Comment 8

[[e-mail]]

Update to nightly gecko and the issue is gone, thanks!