Red Hat Bugzilla – Bug 461042
Fedora 9 cannot handle XFX nForce 750a SLI Motherboard's Azalia High Definition Audio Codec (Realtek ALC888 CODEC?) properly
Last modified: 2009-07-14 10:21:24 EDT
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Fedora 9 system with the latest updates, since Sep 2, has problems handling XFX nForce 750a SLI Motherboard's Azalia High Definition Audio Codec (Realtek ALC888 CODEC?) properly. Running 'dmesg' reveals the following:
ALSA sound/pci/hda/hda_intel.c:1810: chipset global capabilities = 0x4401
ALSA sound/pci/hda/hda_intel.c:749: codec_mask = 0x9
hda_codec: Unknown model for ALC883, trying auto-probe from BIOS...
ALSA sound/pci/hda/hda_codec.c:2857: autoconfig: line_outs=4 (0x14/0x15/0x16/0x17/0x0)
ALSA sound/pci/hda/hda_codec.c:2861: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
ALSA sound/pci/hda/hda_codec.c:2865: hp_outs=1 (0x1b/0x0/0x0/0x0/0x0)
ALSA sound/pci/hda/hda_codec.c:2866: mono: mono_out=0x0
ALSA sound/pci/hda/hda_codec.c:2874: inputs: mic=0x18, fmic=0x19, line=0x1a, fline=0x0, cd=0x0, aux=0x0
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Headphone Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Mono Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Line-Out Playback Volume, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Speaker Playback Switch, skipped
ALSA sound/pci/hda/hda_codec.c:1073: Cannot find slave Mono Playback Switch, skipped
Steps to Reproduce:
During boot process
Are you saying that this suddenly broke on Sep 2? Because there have been no Fedora updates recently.
Either way, I don't think this chip uses firmware from alsa-firmware so reassigning to kernel.
(In reply to comment #1)
> Are you saying that this suddenly broke on Sep 2? Because there have been no
> Fedora updates recently.
> Either way, I don't think this chip uses firmware from alsa-firmware so
> reassigning to kernel.
I meant to write that I just installed Fedora 9 and applied the latest updates on Sep 2. But you're right, this is a kernel related issue. I am trying to get more information about this sound card from the Nvidia web site (and googling) without much success. I will boot Windows XP to see what more I can find out from its control panel.
The only information I can get about this audio card from the Windows XP control panel is "Realtek High Definition Audio". Do let me know what else I can do to obtain more useful data to possibly fix this problem.
Did it work before the updates?
This is a brand new system that I gathered and built from scratch in late August. Everything works well under Windows XP. Everything works well under Fedora 9, except for sound. For your information, the Nvidia graphics driver, I 'yum install' from livna.org, seems to work very well.
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