Re: [Alsa-user] No 5.1 Sound with VIA VT8237R

[Philip P. <phi...@re...>]

Jim T wrote:

>Hi!
>
>I just upgraded my motherboard to an MSI K8MM-V with a
>VIA VT8237R providing the sound. Everything in ALSA
>works fine except that I'm not getting 5.1 sound and
>some of the controls, such as the ones to swap the mic
>and headphone jacks to 5.1 outputs are missing, but
>the Center and Surround levels seem to be there.
>
>The hardware reports as:
>0000:00:11.5 Multimedia audio controller: VIA
>Technologies, Inc. VT8233/A/8235/8
>237 AC97 Audio Controller (rev 60)
>        Subsystem: Micro-Star International Co., Ltd.:
>Unknown device 0430
>        Flags: medium devsel, IRQ 22
>        I/O ports at eb00
>        Capabilities: [c0] Power Management version 2
>
>My kernel is:
>Linux mythtv 2.6.12-gentoo-r6 #1 Wed Aug 10 10:17:28
>PDT 2005 x86_64 AMD Athlon(tm) 64 Processor 3200+
>AuthenticAMD GNU/Linux
>
>And here is the output from amixer:
>amixer info:
>Card default 'V8237'/'VIA 8237 with unknown codec at
>0xeb00, irq 22'
>  Mixer name	: 'VIA Technologies id 70'
>  Components	: 'AC97a:56494170'
>  Controls      : 44
>  Simple ctrls  : 29
>
>amixer gcontrols:
>Simple mixer control 'Master',0
>Simple mixer control 'Master Mono',0
>Simple mixer control 'Headphone',0
>Simple mixer control '3D Control - Center',0
>Simple mixer control '3D Control - Depth',0
>Simple mixer control '3D Control - Switch',0
>Simple mixer control 'PCM',0
>Simple mixer control 'Surround',0
>Simple mixer control 'Center',0
>Simple mixer control 'LFE',0
>Simple mixer control 'Line',0
>Simple mixer control 'CD',0
>Simple mixer control 'Mic',0
>Simple mixer control 'Mic Boost (+20dB)',0
>Simple mixer control 'Mic Select',0
>Simple mixer control 'Video',0
>Simple mixer control 'Phone',0
>Simple mixer control 'IEC958',0
>Simple mixer control 'IEC958 Output',0
>Simple mixer control 'IEC958 Playback AC97-SPSA',0
>Simple mixer control 'PC Speaker',0
>Simple mixer control 'Aux',0
>Simple mixer control 'Mono Output Select',0
>Simple mixer control 'Capture',0
>Simple mixer control 'Mix',0
>Simple mixer control 'Mix Mono',0
>Simple mixer control 'External Amplifier',0
>Simple mixer control 'Input Source Select',0
>Simple mixer control 'Input Source Select',1
>
>
>Let me know if there is anything else I can provide
>that would be useful..
>
>  
>

I've attached the patches I've been using...  Give them a try.  They've not
yet been committed to the alsa-driver CVS tree.

-Philip