hi Folks,
i see the low volume problem is not only related to my hardware but reported a few times in alsa-user mailinglist. Please! have a look in to that problem. Using 100% of the volume sliders in alsamixer is not enough to get usable sound for the amp. here my last mail ng the same problemd
Hi,
On Mo, Aug 23, 2010 at 08:18:46 +0200, Takashi Iwai wrote:
First off, try with the latest version of alsa-driver. Get the snapshot version from ftp://ftp.kernel.org/pub/linux/kernel/people/tiwai/snapshot/alsa-driver-snapshot.tar.gz
Done. Compilation and load of the modules are ok but the volume stays low on the rear panel of the computer.
If this doesn't help, try to set EAPD on NID 0x14 and/or 0x15, set it to 0x02. Get hda-verb program (available on OBS home:tiwai repo), then run like
hda-verb /dev/snd/hwC0D0 0x14 SET_EAPD 0x02 hda-verb /dev/snd/hwC0D0 0x15 SET_EAPD 0x02
also no success with hda-verb. Do you have more ideas what I can test?
Maybe this aditional info helps you :-). I noticed a difference in volume between headphone (front connector) and the line out (rear panel connector). The volume is higher when using the headphone connector but should also be improoved a bit :-(. this info is from alsamixer and the new driver: Card: HDA NVidia Chip: Nvidia ID 7 This info is from the orginal driver of kernel 2.6.34: Card: HDA NVidia Chip: Nvidia MCP79/7A HDMI
Why does alsamixer show Chip: Nvidia ID 7 with new driver?
All help appreciated ;-)
BR. halim