[alsa-devel] no audio output with TYAN S7025 motherboard and Realtek ALC262

Paul Menzel paulepanter at users.sourceforge.net
Thu Mar 4 10:15:59 CET 2010

Dear Bryan,

Am Mittwoch, den 03.03.2010, 10:54 -0800 schrieb Bryan Green:
> I have several systems with a TYAN S7025 motherboard and Realtek ALC262 chipset.
> I have not been able to produce any audio output.  Well, that is except for
> one of the systems: after a variety of tweeks and tests, I got sound working
> on one system, but I do not know what change enabled sound to start working,
> and I have not been able to reproduce the effect on the other systems.

Can you give list of what tweeks you did (even incomplete).

> I have tested with kernels up to 2.6.33, and with ALSA version
> For a non-working system, 'alsaconf' gives the following output:
> Unknown hardware: "HDA-Intel" "Realtek ALC262"
> "HDA:10ec0262,10ec0262,00100202" "0x8086" "0x3a3e"
> And dmesg gives the following:
> HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
> HDA Intel 0000:00:1b.0: irq 89 for MSI/MSI-X
> HDA Intel 0000:00:1b.0: setting latency timer to 64
> hda_codec: ALC262: BIOS auto-probing.
> autoconfig: line_outs=1 (0x14/0x0/0x0/0x0/0x0)
>    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
>    hp_outs=0 (0x0/0x0/0x0/0x0/0x0)
>    mono: mono_out=0x0
>    dig-out=0x1e/0x0
>    inputs: mic=0x18, fmic=0x19, line=0x1a, fline=0x0, cd=0x1c, aux=0x0
>    dig-in=0x1f
> realtek: No valid SSID, checking pincfg 0x411111f0 for NID 0x1d
> realtek: Enable default setup for auto mode as fallback
> input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input8
> For the working system, the dmesg output is the same except for two lines:
> autoconfig: line_outs=1 (0x1b/0x0/0x0/0x0/0x0)
>    inputs: mic=0x18, fmic=0x19, line=0x1a, fline=0x0, cd=0x1c, aux=0x14
> Is there a method for tweaking these values on the non-working system to match
> the working system, to see if that works?

Have you tried different values for the model parameter [1]? If I am not
mistaken you can use HDA-Analyzer [2] to change such values. But I never
used it myself.

> I've uploaded the alsa-info output from a non-working system here:
> http://www.alsa-project.org/db/?f=91057bfc12790688f1d257743e53d5d0ec2ce1e2
> I've uploaded the alsa-info output from the working system here:
> http://www.alsa-project.org/db/?f=198420f14cd0062713636408640636e6d474cf94



[1] http://alsa-project.org/main/index.php/Help_To_Debug_Intel_HDA#.27model.27_parameter
[2] http://alsa-project.org/main/index.php/Help_To_Debug_Intel_HDA#Try_a_lowlevel_GUI_tool_to_control_your_codec
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