"Too many connections" error on boot caused by ALC892 soundchip

[Richard]

Ubuntu 10.10 throws a "Too many connections" error on boot. I think there error is caused by the "ALC892" soundchip. When I disable the sound option in the bios no error occurred. The board is a Gigabyte GA-870A-UD3.

Here is the relevant part from the syslog:

[...]
Feb 17 16:54:46 ***-PC kernel: [ 11.957934] HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16
Feb 17 16:54:46 ***-PC kernel: [ 11.962042] lp0: using parport0 (interrupt-driven).
Feb 17 16:54:46 ***-PC kernel: [ 12.055202] hda_codec: ALC892: BIOS auto-probing.
Feb 17 16:54:46 ***-PC kernel: [ 12.061425] Too many connections
Feb 17 16:54:46 ***-PC kernel: [ 12.062721] HDA Intel 0000:03:00.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
Feb 17 16:54:46 ***-PC kernel: [ 12.062774] alloc irq_desc for 50 on node 0
Feb 17 16:54:46 ***-PC kernel: [ 12.062776] alloc kstat_irqs on node 0
[...]

[Fabián Rodríguez (magicfab)]

I am wondering if this is related / the cause of Bug #722294.

[Fabián Rodríguez (magicfab)]

There is mention of this problem here:
http://marc.info/?l=linux-kernel&m=129072236030208&w=2

[Fabián Rodríguez (magicfab)]

Using today's mainline kernel (2.6.38-999-generic #201103011141) I don' t see this message anymore, however this doesn' t help with my original sound issue (Bug #722294).

[tazzik (flyingsouth)]

I have an Asus P8P67 Pro motherboard with this sounds chip.

I was getting the error "Too Many Connections" on boot, I read that if you made the audio AC97 and not HD then it would solve the problem. It did - though I got some crackling on audio.

I then (for some unknown reason) disabled audio completely and booted up - obviously with no sound. I rebooted and enabled HD audio and now no sound works at all HD or AC97. Nothing at all :(

Please fix it!

[Kimiko Koopman (kimiko)]

More discussion of this problem ("Too many connections" error, and no sound output on Realtek ALC892) is here:
http://ubuntuforums.org/showthread.php?t=1635278

Here
http://www.linuxforums.org/forum/gaming-multimedia-entertainment/168732-solved-no-sound-alsa-except-microphone.html
someone seems to have solved the problem by building new sound modules from source provided by Realtek:
http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=14&PFid=24&Level=4&Conn=3&DownTypeID=3&GetDown=false
When I tried to follow that however, I ended up with sound modules that wouldn't load because of "unknown symbol"s.

Could someone more tech-savvy alert the kernel/alsa folks upstream to this problem?

[Kimiko Koopman (kimiko)]

This bug seems to be the same as #692029.
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/692029

I'm not sure which of the two reports should be marked as a duplicate of the other though.

[Christopher (cwkeller)]

Same scenario: ASUS P8H67-M Pro w/i3-2105: "ALC892: BIOS auto-probing. Too many connections", if HD disabled in BIOS no error but no sound either.