[LAU] programs (eg. rosegarden) don't see my usb midi device
Ken Restivo
ken at restivo.org
Sat Jul 28 11:47:15 EDT 2007
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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 at yahoo.com> 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 at yahoo.com> 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 at fastmail.net> 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
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> Linux-audio-user at lists.linuxaudio.org
> 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 at fastmail.net> 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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