Takashi Iwai wrote:
At Thu, 08 Mar 2007 12:05:49 -0500,
Randy Cushman wrote:
Takashi Iwai wrote:
At Thu, 8 Mar 2007 17:52:43 +0100,
Michal Piotrowski wrote:
On 08/03/07, Takashi Iwai <[EMAIL PROTECTED]> wrote:
At Thu, 08 Mar 2007 16:42:26 +0100,
Michal Piotrowski wrote:
Also, it'd be helpful if you compare
/proc/asound/card0/codec97#0/ac97#0-0+regs file before and after the
patch. This reveals which register bits differ actually.
a2.txt is form 2.6.21-rc3 witchout 831466f4ad2b5fe23dff77edbe6a7c244435e973
diff -uprN a2.txt /proc/asound/card0/codec97#0/ac97#0-0+regs
--- a2.txt 2007-03-08 16:36:47.000000000 +0100
+++ /proc/asound/card0/codec97#0/ac97#0-0+regs 2007-03-08 16:36:49.447083597
+0100
@@ -56,8 +56,8 @@
0:6e = 0000
0:70 = 0000
0:72 = 0004
-0:74 = 1001
-0:76 = 64a4
+0:74 = 1201
+0:76 = 7ca4
0:78 = 000c
0:7a = 0000
0:7c = 4144
OK, some wrong bits there. Could you try the patch below?
Problem fixed. Thanks!
(speaker-test -c6 -Dplug:surround51 is still broken)
Hm, how about turning off "Spread Front To..." control and run
speaker-test?
Takashi
Michal and Takashi,
I've been researching your issue this morning. I just noticed that your
exchange had ensued.
I configured my AD1986-based system as closely as I could to match your
AD1985 mixer settings. In doing so, I experienced results similar to
what I'm assuming you described: Only front channel sound came out of
the surround and c/lfe jacks.
Here is what I had to change to get the appropriate multichannel sound:
1) The command "speaker-test -c6" does not work on my system. I have to
use "speaker-test -Dsurround51 -c6" (Perhaps this is related to running
an old version of speaker-test.)
2) I disabled "Spread Front to Surround and Center/LFE"
The explanation for 2) is this: There can be only one source for each
of the Surround and Center/LFE jacks active at one time. When "Spread
Front to Surround and Center/LFE" is disabled, the surround channels go
to the the jacks; when this control is enabled, ONLY the front channels
go to the surround and c/lfe jacks.
Considering the register values Michal provided and Takashi's patch:
The logic of the code is as follows: (Slightly simplifying,) functions
is_shared_linein() and is_shared_micin() return TRUE if the mixer is
configured for shared jacks AND NOT for 6 channel mode. In this case it
is appropriate to
set these bits (LODIS and CLDIS).
Yep. So, can you confirm that my fix is OK?
Then I'll queue it up to ALSA tree.
thanks,
Takashi
Takashi,
I need to think this through before I can confirm. Something doesn't
seem right.
Let me figure out why I wrote ad1986_update_jacks() to be so different
from ad1888_update_jacks().
I'll keep you posted.
Randy Cushman
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