Finding out what's different with more detain than Yes and No would help. boot into knoppix $ lsmod | grep -i "snd" | sort 2>&1 | tee alsa_knoppix.log boot into debian $ lsmod | grep -i "snd" | sort 2>&1 | tee alsa_debian.log save these files on a common medium (flash drive) of course. $ diff -a -U 3 alsa_knoppix.log alsa_debian.log And of course noting /proc/asound/cards plus you might want to modinfo the module of importance for each, to see what differs there (versioning / parms). And various other things generally covered in the alsa-info.sh script. HTH, - James On 5/23/11, s.keupert@xxxxxxxx <s.keupert@xxxxxxxx> wrote: > Hello! > >> I'm afraid the problem is totally not linked to the Debian Squeeze distro, >> reaosn: there are similar problems for some chipsets, especially the >> famous >> Intel HDA Audio chipset in Ubuntu: > ... >> Note: I'm not telling that the problem happens for all chipsets, but tons >> of >> persons should probably encouter such a problem when using laptops and >> netbooks fitted with Intel hda chipsets. > > It may not be a problem of distributions, however, everything worked with > the > alsa packages and configuration that come with Ubuntu, but not with those > which come with Debian. > >> At this moment I overbridge the problem on a absurd virtual way: external >> speakers, there is a vol-button you can rise up. > External speakers are not working for me. > > @all: > I think I've found the root of my problem: I booted the computer with a > Knoppix > Flash drive, with which all sound output and input was fine. While checking > the > /proc/asound/cards of the Knoppix system, I noticed an Sigmatel Audio Card, > additional to the HDA Intel entry. For the same Sigmatel Chip there werde > Channels > displayed in Alsa mixer, which seemed to actually control my volume. > This Sigmatel entry is missing on my Debian System. > > Does anyone know how to add this card to my alsa? > > Best Regards > Savio > > ------------------------------------------------------------------------------ > What Every C/C++ and Fortran developer Should Know! > Read this article and learn how Intel has extended the reach of its > next-generation tools to help Windows* and Linux* C/C++ and Fortran > developers boost performance applications - including clusters. > http://p.sf.net/sfu/intel-dev2devmay > _______________________________________________ > Alsa-user mailing list > Alsa-user@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/alsa-user > ------------------------------------------------------------------------------ What Every C/C++ and Fortran developer Should Know! Read this article and learn how Intel has extended the reach of its next-generation tools to help Windows* and Linux* C/C++ and Fortran developers boost performance applications - including clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user