Re: Lost audio after new Video card installation

On Tue, 2 Mar 2010 09:05:03 +0100
Andreas Rudisch <"cyb."@gmx.net> articulated:

On Mon, 1 Mar 2010 19:42:19 -0500
Carmel <carmel_ny@xxxxxxxxxxx> wrote:

I installed a nVidia GeForce GT 220 card.
Now, the video is fine; however, there is no audio.

hdac0: <NVidia (Unknown) High Definition Audio Controller> mem
0xfcffc000-0xfcffffff irq 16 at device 0.1 on pci3

I ran into the same problem after installing a GT 240. The video cards
support audio via HDMI. During boot the audio chip of the video card
is found first (also snd_hda) and used as primary audio device.

After kldunload / kldload snd_hda everything would work properly.

As a workaround I do not load the snd_hda kernel module at boot, but
with a cronjob @reboot. This way the normal sound card is found first.

OK, now I am confused. This is the output of kldstat:

/boot $ sudo kldstat
Id Refs Address Size Name
1 17 0xc0400000 a5eb64 kernel
2 1 0xc0e5f000 2f08 speaker.ko
3 1 0xc0e62000 a0d6f8 nvidia.ko
4 3 0xc1870000 29b98 linux.ko
5 1 0xc189a000 53cc sem.ko
6 1 0xc18a0000 6a4f8 acpi.ko
7 1 0xc773f000 7000 linprocfs.ko

This is my 'loader.conf'

/boot $ cat loader.conf
speaker_load="YES" # AT speaker module
nvidia_load="YES" # Load nvidia driver
sem_load="YES" # Load the sem module for firefox-35

# Superpages
vm.pmap.pg_ps_enabled=1.

I have sound compiled into my kernel:

# Sound
device sound
device snd_hda # nVidia MCP51 sound support

When I attempt to unload the driver, I receive this message:

kldunload snd_hda
kldunload: can't find file snd_hda

Therefore, are you implying that I have to recompile my kernel without
the sound device and then load it manually when I boot up? That seems
like a bug in FreeBSD.

--
Carmel
carmel_ny@xxxxxxxxxxx

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