About the sound problem.

Isidor isidor at excite.com
Thu Mar 18 19:42:48 EDT 2010


Hello.

I have :

u-boot from 20100312
kernel from Xianfu temp
rootfs from 20100312


and sound Ok and iddle screen black.

I confirm, the u-boot on Xianfu temp, is not operational.

Thanks Xianfu and David.

Isidor.


-----Original Message-----
From: "David Reyes Samblas Martinez" [david at tuxbrain.com]
Date: 03/18/2010 21:48
To: "Hard- and Software Development, Kernel, Distribution,
	Roadmap" <developer at lists.qi-hardware.com>
Subject: Re: About the sound problem.

Hi ,
Xiang the I was unable to boot with the u-boot on your temp, black screen nothing else,
The combination that finally make sound working ,  and iddle screen is black again, is 

u-boot from 20100110
kernel from Xianfu temp
rootfs from 20100312
Regards


2010/3/18 Lars-Peter Clausen <lars at metafoo.de>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

zhan han wrote:
> Hi marc,
>
> I think Lars Peter knew this bug and current git tree got fixed.
> A quick fix is to remove the tmp/ directory generated by scripts,
kconfig.pl.
> Now just select Kernel modules->Sound support from make
> menuconfig, all there.
> Then the alsa-soc drivers will be built as kernel modules, if you
> dont want modules,
> I think it could be done by make kernel_menuconfig to configure it
manually.
> An other problem is from the u-boot, wrong u-boot make it to be silent.
>
> Best regards.
>

Hi

Actually that should be fixed as well within the latest kernel.
The problem was, that the u-boot disabled the sound units clock for
power saving, but the kernel never turned it on again. It now does.

- - Lars
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-- 
David Reyes Samblas Martinez
http://www.tuxbrain.com
Open ultraportable & embedded solutions
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