Mixer levels lost. (Unknown hardware: "VIA8237")

[matez]

I have changed from kernel-2.6.30 to 2.6.34 and 2.6.35 then some problem arised.
When starting alsasound the following messages are got:

* Loading ALSA modules ... [ ok ]
* Restoring Mixer Levels ...
Unknown hardware: "VIA8237" "Analog Devices AD1980" "AC97a:41445370" "0x1043" "0x80b0"
Hardware is initialized using a guess method
* Errors while restoring defaults, ignoring [ ok ]

Sound works, but the mixer levels should be manually restored after each reboot. This is very unconvenient!

What should be the problem?

The only changes i made at the kernel configuration setting the corresponding modem driver too.
Gentoo advised to compile the sound drivers directly into the kernel, nothing has gone better.

dmesg | grep VIA
pci 0000:00:01.0: disabling DAC on VIA PCI bridge
pci 0000:00:11.0: Bypassing VIA 8237 APIC De-Assert Message
VIA 82xx Audio 0000:00:11.5: PCI INT C -> GSI 22 (level, low) -> IRQ 22
VIA 82xx Audio 0000:00:11.5: setting latency timer to 64
VIA 82xx Modem 0000:00:11.6: enabling device (0000 -> 0001)
VIA 82xx Modem 0000:00:11.6: PCI INT C -> GSI 22 (level, low) -> IRQ 22
VIA 82xx Modem 0000:00:11.6: setting latency timer to 64
VIA 82xx Modem 0000:00:11.6: PCI INT C disabled
VIA 82xx Modem: probe of 0000:00:11.6 failed with error -13
#0: VIA 8237 with AD1980 at 0xe000, irq 22

zgrep SND_VIA /proc/config.gz
CONFIG_SND_VIA82XX=y
CONFIG_SND_VIA82XX_MODEM=y

lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] Host Bridge (rev 80)
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237/VX700 PCI Bridge
00:0b.0 Ethernet controller: Accton Technology Corporation SMC2-1211TX (rev 10)
00:0e.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
00:0e.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)
00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80)
00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 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 [KT600/K8T800/K8T890 South]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
00:11.6 Communication controller: VIA Technologies, Inc. AC'97 Modem Controller (rev 80)
01:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 PRO] (rev 01)

[saturday]

I had the same problem and fixed it with a small change in /etc/init.d/alsasound:

Look for the line:
alsactl -f "${alsastatedir}/asound.state" restore ${cardnum}

and change it to:
alsactl -I -f "${alsastatedir}/asound.state" restore ${cardnum}


According to http://bugs.gentoo.org/show_bug.cgi?id=299362, the latest unstable version of alsa-utils solves this as well.

[Paczesiowa]

http://forums.gentoo.org/viewtopic-t-828149-highlight-.html

[matez]

Thanks!

The 'alsactl -I' modification in /etc/init.d/alsasound works!

[lindegur]

The latest unstable version of alsa-utils-1.0.23-r1 did not solve the problem but the 'alsactl -I' modification in /etc/init.d/alsasound did it