Re: programs (eg. rosegarden) don't see my usb midi device

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On Fri, Jul 27, 2007 at 11:52:16AM -0700, Alessandro Preziosi wrote:
> update:
> I booted into an ubuntu live cd and the um-1s worked, I took a look at the loaded modules (a LOT!):
> (the arrows shows which modules I did not have)
> 
> snd_rtctimer
> snd_usb_audio
> snd_usb_lin
> --->snd_hwdep
> 
> ^these were loaded after inserting the device I think
> 
> snd_hda_intel
> snd_hda_codec
> --->snd_pcm_oss
> --->snd_mixer_oss
> --->snd_pcm
> snd_seq_dummy
> snd_seq_oss
> --->snd_seq_midi
> --->snd_rawmidi
> snd_seq_midi_event
> snd_seq
> --->snd_timer
> snd_seq_device
> --->snd
> 

The kernel you are using is somehow not correctly configured, or the ALSA part of it is broken, at least, or maybe the udev/hotplug facility. These "missing" modules are all vital for ALSA to operate. 

Maybe ask on the ALSA list?  Or the list for whatever distro shipped a kernel that does not load the snd_FOO modules properly when you plug in a USB MIDI device?


> --->soundcore
> --->sndp_age_alloc (used by snd_hda_intel, snd_pcm)
> --->usbcore(used by snd_usb_audio a snd_usb_lib)
> 
> should I load some of these modules?
> or recompile the kernel with more things as module?
> 
> PS: i tried to load for ex. snd-hwdep,snd,snd-rawmidi,snd-page-alloc,soundcore but they don't exist
> 
> Thank you all,
> 
> ale
> 
> Alessandro Preziosi <lsnpreziosi@xxxxxxxxx> wrote: I've tried to load snd-seq-midi and then use aseqdump -l
> but it still doesn't appear!
> I'd like to understand what's the problem...
> Maybe everything would work after a complete reinstall...
> 
> Waiting for other hints...
> 
> Ale
> 
> Alessandro Preziosi <lsnpreziosi@xxxxxxxxx> wrote: >Does it appear in the output of "aseqdump -l"?
> I answer late, anyway this is the output of aseqdump -l:
> 
>  Port    Client name                      Port name
>   0:0    System                           Timer
>   0:1     System                           Announce
>  14:0    Midi Through                     Midi Through Port-0
> 
> It doesn't appear :(
> 
> Clemens Ladisch <cladisch@xxxxxxxxxxxx>  wrote: Alessandro Preziosi wrote:
> > Actually snd-seq-midi wasn't loaded.
> > Anyway even after loading it with modprobe I did not see changes (tried
> > to load before and after inserting the um-1s)
> 
> Does it appear in the output of "aseqdump -l"?
> 
> 
> Regards,
> Clemens
> _______________________________________________
> Linux-audio-user mailing  list
> Linux-audio-user@xxxxxxxxxxxxxxxxxxxx
> http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user
> 
> Thanks for the help.
> Actually snd-seq-midi wasn't loaded.
> Anyway even after loading it with modprobe I did not see changes (tried to load before and after inserting the um-1s)
> 
> This is my lsmod: (without snd-seq-midi)
> Module                  Size  Used  by
> snd_rtctimer            4640  1
> ieee80211_crypt_wep     6272  1
> snd_seq_dummy           4868  0
> snd_seq_oss            30464  0
> snd_seq_midi_event      8064  1  snd_seq_oss
> snd_seq                47184  6  snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
> snd_seq_device          8716  3 snd_seq_dummy,snd_seq_oss,snd_seq
> nvidia               6836340  22
> snd_usb_audio          72928  0
> snd_usb_lib             16128  1 snd_usb_audio
> sdhci                  18572  0
> mmc_core               26628  1 sdhci
> pcmcia                 36524   0
> ipw3945               106272   1
> e100                   33672  0
> ieee80211              31944  1 ipw3945
> ieee80211_crypt         6912  2 ieee80211_crypt_wep,ieee80211
> i2c_i801                8588   0
> i2c_core               21760  2 nvidia,i2c_i801
> iTCO_wdt               11684  0
> iTCO_vendor_support     4868  1 iTCO_wdt
> intel_agp               23836  1
> serio_raw               7684   0
> snd_hda_intel          20632  1
> snd_hda_codec         153344  1 snd_hda_intel
> tifm_7xx1               8576  0
> tifm_core              11268  1  tifm_7xx1
> yenta_socket           25996  1
> rsrc_nonstatic         13184  1 yenta_socket
> pcspkr                  4096  0
> joydev                 10176   0
> tg3                   100484   0
> e1000                 112704  0
> unionfs                70340  0
> sl811_hcd              12672   0
> ohci_hcd               19844  0
> uhci_hcd               22928  0
> ehci_hcd               29964  0
> 
> PS: I recently upgraded udev to version 108 (using gentoo) can this be linked to my problem (it didn't work before, but maybe with that  module...)?
> 
> Bye,thanks
> 
> Clemens Ladisch <cladisch@xxxxxxxxxxxx> wrote: Alessandro Preziosi wrote:
> > I have an edirol um-1s to connect my keybord to my pc.
> > 
> > cat  /proc/asound/cards
> >  1 [UM1            ]: USB-Audio - UM-1
> >                       EDIROL UM-1 at usb-0000:00:1d.2-1, full speed
> > 
> > If I cat /dev/midi1 i get (in real time) the data stream of what I play
> > on the keyboard.
> > Anyway rosegarden dosn't list the device among MIDI input devices, so I
> > cannot record what I play on my keyboard.
> 
> Some old kernels do not automatically load the snd-seq-midi module;
> make sure that it is  loaded.
> 
> 
> HTH
> Clemens
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> Linux-audio-user@xxxxxxxxxxxxxxxxxxxx
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