[LAU] Midi controller keeps disconnecting

Hi all, I recently bought this midi controller: http://www.musicstore.de/en_EN/GBP/Fame-Tweak-49-Controller-Masterkeyboard/… It seems to be this Chinese thing: http://www.worlde.com.cn/products_detail/&productId=1496ebdb-c1c5-401b-… I was hoping midi is standardized enough that it just works in Linux, it doesn't ... But I'd rather keep it, 'cause i don't find anything comparable suiting my needs for this price. Now here's the problem: It basically gets recognized all the way down to alsa $aconnect -li client 24: 'USB Device 0x218:0x303' [type=kernel] 0 'USB Device 0x218:0x303 MIDI 1' but it keeps disconnecting/reconnecting. The syslog keeps cycling like this (about twice a second): Jul 2 03:22:03 pc kernel: [13863.876029] usb 6-1: new full-speed USB device number 102 using uhci_hcd Jul 2 03:22:03 pc pulseaudio[2458]: [pulseaudio] module-alsa-card.c: Failed to find a working profile. Jul 2 03:22:03 pc pulseaudio[2458]: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="2" name="usb-WORLDE_FAME_Tweak_49-00-U0x2180x303" card_name="alsa_card.usb-WORLDE_FAME_Tweak_49-00-U0x2180x303" namereg_fail=false tsched=yes ignore_dB=no deferred_volume=yes card_properties="module-udev-detect.discovered=1""): initialization failed. Jul 2 03:22:03 pc kernel: [13864.288055] usb 6-1: USB disconnect, device number 102 (I just recognized) That it sometimes even disconnects, before it is handled by udev Jul 2 03:26:21 pc kernel: [14122.272020] usb 6-1: new full-speed USB device number 98 using uhci_hcd Jul 2 03:26:21 pc kernel: [14122.442212] usb 6-1: USB disconnect, device number 98 so this is some problem with the drivers/firmware?? Any suggestions are highly appreciated :) Thanks in advance, JonnyB N.B.: My OS is a Linux pc 3.2.0-45-generic-pae #70-Ubuntu SMP Wed May 29 20:31:05 UTC 2013 i686 i686 i386 GNU/Linux And yes, it's working in windoze. Problems with a different device from the same vendor were discussed here (but seems rather unrelated): http://lists.linuxaudio.org/pipermail/linux-audio-user/2013-March/091142.ht…