ALSA Issues in 2.6.3

[Andrew D Kirch]

I've noted repeated issues being discussed in #ALSA on freenode regarding the upgraded 1.0.2 alsa drivers in 2.6.3.  The general symptoms appear to be that the card refuses to play sound.  My configuration (Though i8x0 and emu10k1 have also been blaimed) is a via 8237 southbridge with integrated realtek sound.  The modules load without error and the speakers give an audible pop as if the card is unmuting, the speakers pop again, and no other sound is to be heard.  Playback of audio fails in mplayer, alsaplayer, esd, artsd, mpg123, all of which were compiled against alsa, of interest is that xmms will also "play" without sound.  The spectrum analyzer functions properly showing that audio is being processed, however with the already mentioned lack of actual sound.  I'm utterly befuddled to explain the cause of this, so I won't call it a bug, more an issue (I'd also assume it's been discussed already today or recently, but I just subscribed.)  I would be grateful for an answer in advance as to what might be causing this, I fully believe all settings are correct (MAIN and PCM are unmuted and at 75%, speakers are plugged in correctly, chip is enabled in bios, and detected in lspci)  For sanity reasons I am including pastes of /proc/modules, and lspci.  All other complaints are from upgrades to 2.6.3.  Alsa-libs and alsa-utils 1.0.2 are installed.

My system is as follows:
Gigabyte GA-K8VNXP
AMD Athlon 64 3200+ 1mb L2
1gb Corsair XMS PRO series memory
pny Geforce 4 ti 4200
40gb maxtor harddrive
via_rhine eth0
rtl8169 eth1
8237 southbridge

gentoo64 root # lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8385 [K8T800 AGP] Host Bridge (rev 01)
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800 South]
00:0f.0 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C/VT8235 PIPC Bus Master IDE (rev 06)
00:10.0 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 controller] (rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 controller] (rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 controller] (rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 controller] (rev 81)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [K8T800 South]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78)
00:13.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 (rev 10)
00:14.0 FireWire (IEEE 1394): Texas Instruments: Unknown device 8025 (rev 01)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
01:00.0 VGA compatible controller: nVidia Corporation NV25 [GeForce4 Ti 4200] (rev a3)

gentoo64 root # cat /proc/modules
nvidia 2564596 0 - Live 0xffffffffa00c9000
parport_pc 36696 0 - Live 0xffffffffa00bf000
parport 39532 1 parport_pc, Live 0xffffffffa00b4000
r8169 10692 0 - Live 0xffffffffa00b0000
via_rhine 18888 0 - Live 0xffffffffa00aa000
mii 4544 1 via_rhine, Live 0xffffffffa00a7000
snd_via82xx 23392 3 - Live 0xffffffffa00a0000
snd_ac97_codec 63044 1 snd_via82xx, Live 0xffffffffa008f000
gameport 4032 1 snd_via82xx, Live 0xffffffffa008d000
snd_mpu401_uart 6400 1 snd_via82xx, Live 0xffffffffa008a000
snd_rawmidi 21024 1 snd_mpu401_uart, Live 0xffffffffa0083000
uhci_hcd 28960 0 - Live 0xffffffffa007a000
ohci_hcd 17220 0 - Live 0xffffffffa0074000
ide_tape 51232 0 - Live 0xffffffffa0066000
st 35484 0 - Live 0xffffffffa005c000
sbp2 22088 0 - Live 0xffffffffa0055000
ohci1394 30852 0 - Live 0xffffffffa004c000
ieee1394 72200 2 sbp2,ohci1394, Live 0xffffffffa0039000
usb_storage 67008 0 - Live 0xffffffffa0027000
hid 23744 0 - Live 0xffffffffa0020000
ehci_hcd 23364 0 - Live 0xffffffffa0019000
usbcore 96240 7 uhci_hcd,ohci_hcd,usb_storage,hid,ehci_hcd, Live 0xffffffffa0000000

Thanks of course doubly if this is a stupid question.


Andrew Kirch
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