From mboxrd@z Thu Jan 1 00:00:00 1970 From: thomas schorpp Subject: [ALSA - driver 0000925]: no sound with CMI9761A, Cus fix verified OK Date: Tue, 22 Feb 2005 21:26:14 +0100 Message-ID: <421B9566.7040806@gmx.de> Reply-To: t.schorpp@gmx.de Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org post it here, cant get on bugtracker: this is ok with: -pcm playback -pcm capture -looped through lines thx, cus. Additional Information After some testing i found that the following patch fixes the problem: --- ac97_patch.c.orig 2005-02-18 00:08:01.000000000 +0100 +++ ac97_patch.c 2005-02-19 18:08:23.000000000 +0100 @@ -2010,7 +2010,7 @@ ac97->ext_id |= AC97_EI_SPDIF; /* to be sure: we overwrite the ext status bits */ snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, 0x05c0); - snd_ac97_write_cache(ac97, AC97_CM9761_SPDIF_CTRL, 0x0209); + snd_ac97_write_cache(ac97, AC97_CM9761_SPDIF_CTRL, 0x0009); ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000; /* 48k only */ /* set-up multi channel */ I don't know why it works, and what that 0x0200 bit means in that register, someone may explain. Cus outstanding : Maybe better to use 0x0001 instead? I guess 0x0008 controls the "IEC958 Capture Monitor", and got some reports that this disturbs the output. tashaki. -no, now it disturbs no more. all fine, thx. add.: with this you get master vol slider back: /* CM9761 has no Master and PCM volume although the register reacts */ ac97->flags |= /*AC97_HAS_NO_MASTER_VOL |*/ AC97_HAS_NO_PCM_VOL; @takashi: maybe this was tested only with pcm not with looped through lines, before. i assume false negatives from previous tests. tom ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click