Sorry for the late response, I've been away. I've actually been trying to make my own ALC268 louder, so I've read up on hda architecture :P (I haven't been successful though) On Sun, Jul 11, 2010 at 11:02 AM, Rafael Beraldo <rafaelluisberaldo@xxxxxxxxx> wrote: > > 2010/7/11 Rafael Beraldo <rafaelluisberaldo@xxxxxxxxx> > > > > > $ cat /proc/asound/card0/codec#* | grep Codec > > Codec: Realtek ALC269 > > Codec: Nvidia MCP79/7A HDMI card0 is a single HDA controller. an HDA controller is basically a dma controller that sends audio data to a codec connected to the HDA bus on that card. In this instance, you have two codecs connected to the same HDA controller, which means... > > > Which, I think, means that MCP79 only controls HDMI audio output. I was > > looking at the wrong place all this time. This card is not shown when I run > > lspci. Anyway, I quickly searched the web and found nothing relevant but You won't see two sound cards in lspci because both sound codecs are on the same pci device. > > that: > > http://lists.alioth.debian.org/pipermail/debian-eeepc-devel/2010-February/003320.html. > > However, this error doesn't exist in the current kernel. > > > > I'll try the parameters for ALC269. There are a few in that link, including > > two related to eeepc, and no parameters to MCP79. > > > > -- > > Rafael Beraldo > > http://cabaladada.org > > > > I tested all parameters. Two of them give me interesting results: quanta > gives me control not only of the internal mic but also of the external mic > and basic gives me control of all of it and the front speaker. In both cases > alsa daemon gives and error related to the NVIDIA chipset but everything > works. > > Sound volume didn't change with any parameters. > > Also, alsamixer says it is using the NVIDIA MCP79 and I can't change the > sound card by typing F6. This may be the fault of your terminal. Did you try amixer instead? > Now I'm just confused and again wondering if the sound isn't just that loud. > > -- > Rafael Beraldo > http://cabaladada.org Anyway, I highly recommend using reading http://www.alsa-project.org/main/index.php/Help_To_Debug_Intel_HDA and using the HDA-Analyzer utility mentioned there - you can mess with your codecs manually to try to get louder sound. -- Alexander Lam
