Ok folks, I have tried the following approaches without much success: installing the latest ALSA driver from the repositories(this was alsa-driver-hg20071129 at the time I did it.) Then I uninstalled ALSA and installed the latest OSS driver. This helped a bit and the sound was better, but still not perfect, I still have problems with some AVI files. So the last thing I'm trying now is installing the Realtek audio codecs: http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=24&PFid=24&Level=4&Conn=3&DownTypeID=3&GetDown=false#High%20Definition%20Audio%20Codecs So I downloaded it and followed the instructions. I managed to successfully compile this driver but then when I run alsamixer I get the following error message: alsamixer: function snd_ctl_open failed for default: No such device I read somewhere that this is due to some OSS modules still being loaded and that I have to remove those OSS modules. So how do I do that? Thanks for any help! If you need more information just ask. Roland > My motherboard: PCCHIPS A13G+ > http://www.pcchips.com.tw/PCCWebSite...uID=44&LanID=0 > > I'm using Ubuntu 7.10 - the Gutsy Gibbon, I was using Feisty before > and had the same problems. > > The interesting thing: the system sounds all work. Some example .ogg > files that came with Ubuntu also work. > There is one example file however "fables_01_01_aesop.spx" which only > gives a very low sound, almost inaudible. > The real strange thing happens with ".avi" and mp3 files. They sound > distorted and very low, almost inaudible. Some have better/louder > sound, but still distorted, but I can understand what is being spoken, > others not. > > Thanks for any help! > If you need more information just ask. > > Technical details follow(including the Alsa Audio Debug): > > > > The sound hardware of my Mobo is in the NVIDIA MCP61S Single chipset. > This chipset consists of: GeForce(R) 6100 GPU and MCP nForce(R) 405 > > codec(less /proc/asound/card0/codec#0): > Codec: Realtek ALC660-VD > Address: 0 > Vendor Id: 0x10ec0660 > Subsystem Id: 0x1019c601 > Revision Id: 0x100001 > > > The aplay command lists another codec: ALC861VD > > aplay -l > **** List of PLAYBACK Hardware Devices **** > card 0: NVidia [HDA NVidia], device 0: ALC861VD Analog [ALC861VD Analog] > Subdevices: 0/1 > Subdevice #0: subdevice #0 > > Here is the Alsa Audio Debug: > > ALSA Audio Debug v0.1.0 - Mon Nov 12 00:00:12 BRST 2007 > http://alsa.opensrc.org/aadebug > http://www.gnu.org/licenses/gpl.txt > > Kernel ---------------------------------------------------- > Linux 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 GNU/Linux > > Loaded Modules -------------------------------------------- > snd_hda_intel 263712 4 > snd_pcm_oss 44672 0 > snd_mixer_oss 17664 1 snd_pcm_oss > snd_pcm 80388 3 snd_hda_intel,snd_pcm_oss > snd_seq_dummy 4740 0 > snd_seq_oss 33152 0 > snd_seq_midi 9600 0 > snd_rawmidi 25728 1 snd_seq_midi > snd_seq_midi_event 8448 2 snd_seq_oss,snd_seq_midi > snd_seq 53232 6 > snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event > snd_timer 24324 3 snd_pcm,snd_seq > snd_seq_device 9228 5 > snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq > snd 54660 15 > snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device > snd_page_alloc 11400 2 snd_hda_intel,snd_pcm > > Modprobe Conf --------------------------------------------- > Warning: module config file does not exist > This means any kernel modules will not be auto loaded > See your linux distro docs on how to create this file > > Proc Asound ----------------------------------------------- > Advanced Linux Sound Architecture Driver Version 1.0.14 (Thu May 31 > 09:03:25 2007 UTC). > 0 [NVidia ]: HDA-Intel - HDA NVidia > HDA NVidia at 0xfe028000 irq 16 > 2: : timer > 3: : sequencer > 4: [ 0- 0]: digital audio playback > 5: [ 0- 0]: digital audio capture > 6: [ 0] : control > cat: /proc/asound/hwdep: No such file or directory > 00-00: ALC861VD Analog : ALC861VD Analog : playback 1 : capture 2 > Client info > cur clients : 3 > peak clients : 3 > max clients : 192 > > Client 0 : "System" [Kernel] > Port 0 : "Timer" (Rwe-) > Port 1 : "Announce" (R-e-) > Connecting To: 15:0 > Client 14 : "Midi Through" [Kernel] > Port 0 : "Midi Through Port-0" (RWe-) > Client 15 : "OSS sequencer" [Kernel] > Port 0 : "Receiver" (-we-) > Connected From: 0:1 > > Dev Snd --------------------------------------------------- > controlC0 pcmC0D0c pcmC0D0p seq timer > > CPU ------------------------------------------------------- > model name : AMD Processor model unknown > cpu MHz : 1900.000 > > RAM ------------------------------------------------------- > MemTotal: 969524 kB > SwapTotal: 1951888 kB > > Hardware -------------------------------------------------- > 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 > [Athlon64/Opteron] HyperTransport Technology Configuration > 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 > [Athlon64/Opteron] Address Map > 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 > [Athlon64/Opteron] DRAM Controller > 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 > [Athlon64/Opteron] Miscellaneous Control _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
