A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2159> ====================================================================== Reported By: nikke Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 2159 Category: PCI - ymfpci Reproducibility: always Severity: minor Priority: normal Status: new Distribution: Debian Kernel Version: 2.6.15 ====================================================================== Date Submitted: 05-24-2006 23:44 CEST Last Modified: 06-16-2006 13:26 CEST ====================================================================== Summary: ac3 passthrough not working on recent versions Description: Using the following AC3 passthrough with mplayer works: Linux 2.4.31 alsa-driver 1.0.8-7 (debian stable packaged) Using Linux 2.6.15 (both with alsa-driver 1.10rc3 that ships with the kernel and alsa-driver 1.0.11) it doesn't work. The reciever just says "unlock" and stays quiet. The only change is booting with different kernels, no other config or hardware is touched, so this must be a driver regression. The card is YMF-754 based, connected with coax spdif to my HK reciever. If you need more info, just tell me and I'll dig it up. ====================================================================== ---------------------------------------------------------------------- Mimosius - 06-16-06 13:16 ---------------------------------------------------------------------- I've started from 1.0.9b and applied patch by patch up to 1.0.11. I figured out, that this patch from Clemens Ladisch http://hg-mirror.alsa-project.org/alsa-kernel?cmd=changeset;node=218164651eb8;style=gitweb breaks the AC3-passthrough. playing mp3 or ac3 the AC97 register are filled with the same values, but there is a difference between version 1.0.11, which comes with my SUSE 10.1 Kernel, and my patched 1.0.9b without Clemens patch: --- ac97-1.0.11-ac3 2006-06-15 22:17:15.000000000 +0200 +++ ac97-1.0.9_patched-ac3 2006-06-16 12:49:49.000000000 +0200 @@ -6,18 +6,18 @@ 0:0a = 801e 0:0c = 801f 0:0e = 801f -0:10 = 0808 +0:10 = 9f1f 0:12 = 9f1f 0:14 = 9f1f 0:16 = 9f1f 0:18 = 9f1f -0:1a = 0505 -0:1c = 0101 +0:1a = 0000 +0:1c = 0000 0:1e = 0000 -0:20 = 0200 +0:20 = 0000 0:22 = 0000 0:24 = 0000 -0:26 = 800f +0:26 = 000f 0:28 = 0080 0:2a = 0080 0:2c = 0000 @@ -53,9 +53,9 @@ 0:68 = 0000 0:6a = 0000 0:6c = 0000 -0:6e = 0004 +0:6e = 0008 0:70 = 0000 -0:72 = 8000 +0:72 = ffef 0:74 = 0380 0:76 = abba 0:78 = 9381 and here the diff of the ymfpci registers from 1.0.11 and 1.0.9b(patched) --- ymfpci-1.0.11-ac3 2006-06-15 22:17:20.000000000 +0200 +++ ymfpci-1.0.9_patched-ac3 2006-06-16 12:47:54.000000000 +0200 @@ -24,7 +24,7 @@ 0054: ff00ff 0058: 555500ff 005c: 0000 -0060: 807e0808 +0060: 807e0000 0064: 7e7608 0068: 7fffff 006c: 0000 @@ -32,26 +32,26 @@ 0074: 0000 0078: 0000 007c: 0000 -0080: 0000 +0080: 3fff3fff 0084: 3fff3fff -0088: 0000 +0088: 3fff3fff 008c: 0000 -0090: 3fff3fff +0090: 0000 0094: 0000 0098: 0000 009c: 0000 00a0: 0000 00a4: 3fff3fff -00a8: 0000 +00a8: 3fff3fff 00ac: 3fff3fff 00b0: 0000 00b4: 0000 00b8: 0000 00bc: 0000 00c0: 0000 -00c4: 45a7 +00c4: 5fff 00c8: 0000 -00cc: 0002 +00cc: 0001 00d0: 0000 00d4: 0000 00d8: 0000 @@ -65,7 +65,7 @@ 00f8: 0000 00fc: 0000 0100: 0003 -0104: 0001 +0104: 0000 0108: 40000003 010c: 25a01 0110: 0001 @@ -86,7 +86,7 @@ 014c: 0100 0150: 0000 0154: 0018 -0158: 3db70000 -015c: 3db73e00 -0160: 3db73f00 -0164: 3db74000 +0158: 13810000 +015c: 13813e00 +0160: 13813f00 +0164: 13814000 so AC3 works for me at the moment :) , but thats not the solution. I hope Clemens will review his patch. ---------------------------------------------------------------------- Raymond - 06-16-06 13:26 ---------------------------------------------------------------------- Are you really sure that the patch "ymfpci: add per-voice volume controls" break AC3 passthrough, the purpose of that patch is to implement pcm volume control per substream using the hardware mixing of ymfpci Please note that STAC9708 has no SPDIF control registers, there is no need to compare ac97 registers You should compare those ymfpci register cat /proc/asound/card0/ymfpci Issue History Date Modified Username Field Change ====================================================================== 05-24-06 23:44 nikke New Issue 05-24-06 23:44 nikke Distribution => Debian 05-24-06 23:44 nikke Kernel Version => 2.6.15 05-24-06 23:47 nikke Issue Monitored: nikke 06-02-06 04:23 Raymond Note Added: 0010045 06-02-06 04:25 Raymond Note Edited: 0010045 06-12-06 13:14 Mimosius Issue Monitored: Mimosius 06-14-06 22:32 nikke Note Added: 0010216 06-15-06 02:18 Raymond Note Added: 0010221 06-15-06 02:27 Raymond Note Edited: 0010221 06-15-06 11:03 Mimosius Note Added: 0010237 06-15-06 23:43 nikke Note Added: 0010246 06-16-06 13:01 Mimosius Note Added: 0010250 06-16-06 13:16 Mimosius Note Edited: 0010250 06-16-06 13:26 Raymond Note Added: 0010251 ====================================================================== _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
