Re: Bug: bluetooth not working after suspend/resume

[etsang <Edwin.Tsang@ca.flextronics.com>]

Hi Kenyu,
  I am working on a similar BT issue. But it is on Android Gingerbread
kernel 2.6.25.7+.  After a idle for a while the BT was not return any
inquiry result (if it was not), if turn off BT then it will not turn
again until a power cycle. On the kernal log it was showing problem
loading into the TI wl327x. 
---
TIinit_7.2.31.bts
no proper response during fw download.
Do you you have a similar fw download failure when attempt to turn on
BT. Or might be a different issue?

Ed
On Tue, 2011-09-27 at 16:25 +0800, Keng-Yü Lin wrote:
> Hi all:
>   Since kernel.org/bugzilla is dead for a while, I sent the bug report
> here in hope to get more insight.
> 
>   This is a long-lasting bug and happens across several distros with
> different combinations of bluez/kernel verisions but shares much the
> same symptom that bluetooth is not working after the resume. As seen
> in the bug report below, it happens on a variety of different laptops
> too.
> 
>   Redhat:
>     https://bugzilla.redhat.com/show_bug.cgi?id=727106
> 
>   Debian:
>     http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=614929
> 
>   Ubuntu:
>     https://launchpad.net/bugs/824144
>     https://launchpad.net/bugs/824633
>     https://launchpad.net/bugs/823467
>     https://launchpad.net/bugs/822705
> 
>   Personally I did some investigation on the issue and found that
> bluetoothd does not receive the HCI commands of read_bd_addr,
> read_local_version, read_local_features, nor read_local_name. So in
> bluez.plugins/hciops.c:device_devup_setup(), init_adapter() is not
> called at resume.
> 
>   It can be further confirmed by the attached patch of bluez. It is
> ugly but can work around the bug as reported in some of the bug
> trackers above.
> 
>   I am looking for any advice to get it move on,  for the debugging
> and the fixing.
> 
>   Thanks,
> -kengyu


 
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