On Sun, 4 Jan 2009 04:01:29 +0800 "Yu Lao" <noise.now@xxxxxxxxx> wrote: > Hi, > > I'm very much new to Linux and ALSA. I have a new Sony Vaio laptop with a > RME Hammerfall Multiface connected to it via the PCIe slot. The system > configuration (system/preferences/hardware/sound) does see boh the inbuilt > sound card and the Hammerfall box. The internal device works, but the sound > card test when I select the RME box fails with the error message > > audiotestsrc wave=sine freq=512! > audioconvert! audioresample! > gconfaudiosink: Could not open audio device for playback. > > Although this indicates functional problems, it might simply be access > privileges that don't allow me to use my audio interface in the first place > but I'm not sure. Also,when I check all the options available for my > interface the settings of the box (audio sync master, samping frequency etc) > list correctly - I have checked the settings before under winXP. > > I was reading through the FAQs and I found that I do not have permissions to > start with. However the smart answer in the FAQ has it easy because there is > a group that has access privileges to the sound device. My permissions read > like this > > crw-rw-rw-+ 1 root root 116, 13 2009-01-04 01:21 controlC0 > crw-rw-rw-+ 1 root root 116, 8 2009-01-04 01:21 controlC1 > crw-rw-rw-+ 1 root root 116, 12 2009-01-04 01:21 hwC0D0 > crw-rw-rw-+ 1 root root 116, 7 2009-01-04 01:21 hwC1D0 > crw-rw-rw-+ 1 root root 116, 6 2009-01-04 01:21 hwC1D1 > crw-rw-rw-+ 1 root root 116, 9 2009-01-04 01:21 midiC0D0 > crw-rw-rw-+ 1 root root 116, 11 2009-01-04 01:21 pcmC0D0c > crw-rw-rw-+ 1 root root 116, 10 2009-01-04 01:21 pcmC0D0p > crw-rw-rw-+ 1 root root 116, 5 2009-01-04 02:58 pcmC1D0c > crw-rw-rw-+ 1 root root 116, 4 2009-01-04 02:58 pcmC1D0p > crw-rw-rw-+ 1 root root 116, 3 2009-01-04 01:21 seq > crw-rw-rw-+ 1 root root 116, 2 2009-01-04 01:21 timer > > so it is all root and I have no shadow of an idea how to chage that. > You are confused - the owner is root, but all three entities: crw-rw-rw- 1 2 3 , which are owner, group, others, have both read and write permissions. --Sergei. ------------------------------------------------------------------------------ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
