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

[Andrei Gherzan]

On Mon, Mar 23, 2015 at 6:33 PM, Gary Thomas <gary at mlbassoc.com> wrote:

> On 2015-03-23 11:13, Alex J Lennon wrote:
>
>>
>>
>> On 23/03/2015 18:08, Gary Thomas wrote:
>>
>>> On 2015-03-23 10:42, Alex J Lennon wrote:
>>>
>>>>
>>>>
>>>> On 23/03/2015 16:59, Gary Thomas 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?
>>>>>
>>>>
>>>> Sorry to jump in on your conversation Gary but I am also doing some bits
>>>> and pieces with meta-raspberrypi myself to test out my new-ish RPiv2.
>>>>
>>>> I'll have a look at changing the kernel configuration here later, but I
>>>> did also try changing TEST_MODE in the config.txt which is billed as
>>>> giving analogue audio and video out at startup. Sure enough I hear the
>>>> startup beeps.
>>>>
>>>> Perhaps this would enable you to verify the hardware is working too?
>>>>
>>>
>>> Verified - this works.  Still no sound when I boot Poky/Yocto.
>>>
>>> Have you tried audio output from Linux?
>>>
>>
>> OK that's something then. I'm in the middle of some i.MX6 builds at the
>> minute but will look at this with the meta-raspberrypi kernel later and
>> come back to you. I suspect I will see the same as you.
>>
>> I don't have anything capable of HDMI audio about here so will output a
>> wav file or something to the analogue jack. What's your simplest test
>> case?
>>
>
> Use gstreamer:
>   # gst-launch audiotestsrc ! alsasink


I think I tested sound with omxplayer on rpi2... this is pretty strange.

-- 
*Andrei Gherzan*
*e: **andrei at gherzan.ro <andrei at gherzan.ro>*
*w: *www.gherzan.ro
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.yoctoproject.org/pipermail/yocto/attachments/20150323/2af609a5/attachment.html>