[yocto] [meta-raspberrypi][PATCH] make sound work out of the box for raspberrypi2

[Gary Thomas]

On 2015-03-23 14:57, Andreas Müller wrote:
> On Mon, Mar 23, 2015 at 4:59 PM, Gary Thomas <gary at mlbassoc.com> wrote:
>> On 2015-03-22 14:21, Andreas Müller wrote:
>>>
>>> Signed-off-by: Andreas Müller <schnitzeltony at googlemail.com>
>>> ---
>>>    ...-during-boot-by-compiling-SND_BCM2835-int.patch | 38
>>> ++++++++++++++++++++++
>>>    recipes-kernel/linux/linux-raspberrypi_3.18.bb     |  8 +++--
>>>    2 files changed, 43 insertions(+), 3 deletions(-)
>>>    create mode 100644
>>> recipes-kernel/linux/linux-raspberrypi/0001-start-sound-during-boot-by-compiling-SND_BCM2835-int.patch
>>
>>
>> I tried this patch (which downloaded very strangely using Thunderbird) and
>> the
>> kernel rebuilt fine.  I now have the audio detected, but still no sound :-(
>> Again I've tried the internal (phono) speakers as well as HDMI audio.
>>
>> Just to prove a point on the [brand new] hardware, I installed OpenELEC
>> (XBMC)
>> and it works fine using the HDMI audio.  Sadly when I tried Raspbian and
>> Ubuntu
>> there was no sound either...
>>
>> Were you (Andreas) able to get any sound with this patch?
>>
> Yes but I have used 3.5mm sound output - Should have mentioned that in
> commit. I guess there is to enable something else in kernel config for
> HDMI. Will look into that

I've tried the 3.5mm jack as well but nothing seems to come out.
I even tried booting with the HDMI missing (powered off) in case
that was causing some confusion.

Did you make any changes to config.txt to get this going?

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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