Chris Jones wrote: > On Mon, Dec 06, 2010 at 12:15:33PM EST, deloptes wrote: >> Chris Jones wrote: >> >> > I am trying to set up a USB sound bar on someone else's laptop running >> > ubuntu 10.10 with a gnome desktop. >> >> what is this sound bar? something to eat :-)? > > No, a place where they charge the patrons for listening :-) > > [..]
I wanted to know if it is a webcam or something else > >> > Is there any way I can make the sound bar the system's default and be >> > done with it? >> >> you can read ALSA docs - they are weired but very good. I usually do few >> steps to setup a card. You have two options - to setup system wide or >> user specific > > That's what I was looking for. > >> > While testing, I tried redirection when launching programs from the >> > bash prompt -- i.e. adding ‘/dev/dsp > /dev/dsp1’ -- with >> > unsatisfactory results: below par sound quality, loud cracks, the >> > speakers go silent for brief periods of time, etc. >> >> dsp is OSS (not ALSA) and it works only with additional modules (loaded >> and configured) > > OK. > >> > I do not have access to the other laptop right now, but I would assume >> > gnome has some sort of GUI that lets you specify your default device >> > ‘system-wide’? >> >> check if there is pulse audio installed and running - this might be what >> you are looking for (there is something pactrl or alike or gui for this - >> I'm not using it but it's the future, so possibly you can use it) > > Will do. > >> > Another thing I noticed is that the volume button on the sound bar does >> > not work: I have to start alsamixer to control the volume, which is not >> > optimal. >> > >> > Does this mean that I am using a default generic audio USB driver for >> > this device and that I should look for something a bit more specific >> > that might support additional hardware features? >> >> I would say this was the configuration for the default card (built in) > > .. and volume and other controls on a builtin sound card would be rather > inconvenient? :-) > >> > While I am at it I thought I might as well learn how these things work >> > and stop guessing :-) >> >> then start reading at >> http://www.alsa-project.org/main/index.php/Documentation > > Looks more than promising, thanks! > > [..] > >> > P.S. I refrained from posting the 3 pages output by ‘lsusb -vs’. Not >> > sure if that would help at this point. >> > >> >> thanks, but it would help though to mention what kind of chip your usb >> card has (or vendor + model) > > Not sure about the model - the vendor is actually Logitech. > > $ tail /var/log/messages > > usb 1-1.4: USB disconnect, address 13 > usb 1-1.4.4: USB disconnect, address 14 > usb 1-1.4: new full speed USB device using uhci_hcd and address 15 > usb 1-1.4: configuration #1 chosen from 1 choice > hub 1-1.4:1.0: USB hub found > hub 1-1.4:1.0: 4 ports detected > usb 1-1.4: New USB device found, idVendor=05e3, idProduct=0607 > usb 1-1.4: New USB device strings: Mfr=0, Product=1, SerialNumber=0 > usb 1-1.4: Product: USB2.0 Hub > usb 1-1.4.4: new full speed USB device using uhci_hcd and address 16 > usb 1-1.4.4: configuration #1 chosen from 1 choice > input: HOLTEK AudioHub Speaker as /class/input/input11 > input,hidraw0: USB HID v1.10 Device [HOLTEK AudioHub Speaker] on > usb-0000:00:07.2-1.4.4 usb 1-1.4.4: New USB device found, idVendor=046d, > idProduct=0a0e usb 1-1.4.4: New USB device strings: Mfr=1, Product=2, > SerialNumber=0 usb 1-1.4.4: Product: AudioHub Speaker > usb 1-1.4.4: Manufacturer: HOLTEK > > Not much that looks like a reference to a chip, at least to my > uneducated eyes. As you notice the device doubles as a USB hub. I couldn't find information about the chip or even if the card is supported http://www.linux-usb.org/usb.ids > > What would a chip identifier look like? it doesn't matter when it is usb - the point was the information above about the ids > >> I usually setup my notebook following way >> >> *) Add the user to the audio(+video) group > > Did that. > >> *) create a file /etc/modprobe.d/sound with following >> >> ## ALSA portion >> alias char-major-116 snd >> alias snd-card-0 snd-hda-intel >> alias snd-card-1 snd-usb-audio >> >> ## module options should go here >> #options snd-hda-intel index=0 model=dell-m6,ref,auto >> #options snd-hda-intel index=0 model=ref enable_msi=1 >> options snd-hda-intel index=0 model=ref >> #options snd-hda-intel index=0 model=hp-dv5 enable_msi=1 >> #position_fix=1 >> options snd-usb-audio index=1 > > I currently have this: > > $ cat /etc/modprobe.d/sound > alias snd-card-0 snd-es1968 > options snd-es1968 index=0 > > Let me check what this does before I make any changes. > >> This way I have always the built in card configured as "0" which means >> first and the usb as second > > Ah.. nice. > >> The options you'll find in the kernel version /Documentation >> >> *) For user specific configuration and experimenting with alsa you can >> use >> >> $HOME/.asoundrc > > excellent! > > [..] > > On Mon, Dec 06, 2010 at 12:17:02PM EST, Hugo Vanwoerkom wrote: > > [..] > >> the default sound is index=0 > > Thanks to both! > > cj > > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/idsocv$om...@dough.gmane.org