[Bug 659523] [NEW] oss4 doesn't produce working /dev/mixer, doesn't play sound

[stimuli]

Public bug reported:

I am on a Geode LX system with CS5536 audio chipset. Using 2.6.32 in
Lucid, OSS4 worked great. With 2.6.35 in Maverick, the modules load, no
errors are produced besides a warning that my feeble hardware is
incapable of mixing multiple audio streams, but no OSS4 audio. I had the
same error/warning in 2.6.32, but had working audio.

As per the forums, other people on other architectures are merrily using
OSS4 on Maverick. I have thus deduced the issue to be CS5536 specific,
in the 2.6.36 kernel. I don't know if it is Ubuntu-patch related or
2.6.35 mainline related.

lsmod | grep oss:

oss_usb                92545  0 
oss_geode               8451  0 
osscore               541033  2 oss_usb,oss_geode

dmesg | grep oss:

[   21.199847] osscore: This processor architecture is not compatible with vmix (info=-1) - Not enabled.
[   22.178693] usbcore: registered new interface driver oss_usb

ossinfo (the weird part):

Version info: OSS 4.2 (b 2003/201007311944) (0x00040100) GPL
Platform: Linux/i586 2.6.35-22-generic #34-Ubuntu SMP Sun Oct 10 09:24:00 UTC 2010 (kjsa)

Number of audio devices:        0
Number of audio engines:        0
Number of MIDI devices:         0
Number of mixer devices:        0


Device objects
 0: osscore0 OSS core services
 1: oss_usb0 USB audio core services

MIDI devices (/dev/midi*)

Mixer devices

Audio devices

Nodes

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image (not installed)
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.34-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i586
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices: Error: [Errno 2] No such file or directory
Architecture: i386
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info: Error: [Errno 2] No such file or directory
Card0.Amixer.values: Error: [Errno 2] No such file or directory
Date: Wed Oct 13 02:29:59 2010
HibernationDevice: RESUME=UUID=48cd0ecc-8997-445f-b159-877b31bffcb2
InstallationMedia: Lubuntu 10.04 "Lucid Lynx" - i386 (20100429)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 002: ID 0ace:1215 ZyDAS ZD1211B 802.11g
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: KOHJINSHA Co.,Ltd SA Series
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=fc2889c3-f237-4387-979c-28dc9ce65db3 ro
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
dmi.bios.date: Built: 11/18/2006
dmi.bios.vendor: Insyde Software
dmi.bios.version: S18_V0.5_EC0.8
dmi.board.name: SA Series
dmi.board.vendor: KOHJINSHA Co.,Ltd
dmi.board.version: Rev 1.00
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 13
dmi.chassis.vendor: KOHJINSHA Co.,Ltd
dmi.chassis.version: Rev 1.00
dmi.modalias: dmi:bvnInsydeSoftware:bvrS18_V0.5_EC0.8:bdBuilt11/18/2006:svnKOHJINSHACo.,Ltd:pnSASeries:pvrRev1.00:rvnKOHJINSHACo.,Ltd:rnSASeries:rvrRev1.00:cvnKOHJINSHACo.,Ltd:ct13:cvrRev1.00:
dmi.product.name: SA Series
dmi.product.version: Rev 1.00
dmi.sys.vendor: KOHJINSHA Co.,Ltd

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug audio i386 kernel-sound maverick needs-upstream-testing oss4 regression-release

-- 
oss4 doesn't produce working /dev/mixer, doesn't play sound
https://bugs.launchpad.net/bugs/659523
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