Thanks Ralf for the suggestions. Tomorrow i will experiment a little bit. One strange thing that i don't understand is why does still compare the webcam (on the bus 2) in lsusb even if i blacklisted the uvcvideo e videodev drivers?
I also found a very interesting discussion about rtirq made on LAU http://linux-audio.4202.n7.nabble.com/Re-Issue-with-the-priority-of-the-sound-cards-using-rtirq-td40952i20.html Cheers Nicola 2013/7/29 Ralf Mardorf <[email protected]> > ninu@ninu-HPg6:~$ service rtirq status > > PID CLS RTPRIO NI PRI %CPU STAT COMMAND > 66 FF 90 - 130 0.0 S irq/8-rtc0 > 62 FF 80 - 120 0.3 S irq/16-ehci_hcd > 63 FF 79 - 119 0.8 S irq/21-ehci_hcd > 65 FF 75 - 115 0.0 S irq/1-i8042 > 64 FF 74 - 114 0.0 S irq/12-i8042 > 35 FF 50 - 90 0.0 S irq/9-acpi > 189 FF 50 - 90 0.0 S irq/41-rtsx_pci > 217 FF 50 - 90 0.3 S irq/42-ahci > 424 FF 50 - 90 0.0 S irq/43-mei > 620 FF 50 - 90 0.4 S irq/16-ath9k > 742 FF 50 - 90 0.0 S irq/44-i915 > 1377 FF 50 - 90 0.0 S irq/40-eth0 > 3 TS - 0 19 0.2 S ksoftirqd/0 > 14 TS - 0 19 0.1 S ksoftirqd/1 > 19 TS - 0 19 0.0 S ksoftirqd/2 > 24 TS - 0 19 0.0 S ksoftirqd/3 > > Unbind ehci_hcd with irq 16 and use ehci_hcd with irq 21 for the USB > sound device. Disabling WLAN might be useful too, even when it doesn't > share the irq. > > > http://wiki.linuxaudio.org/wiki/system_configuration#solve_irq_conflict_by_unbinding_devices > > Or at least take care that the used USB slot is head of the USB slots, > > RTIRQ_NAME_LIST="rtc snd usb i8042" > > instead of "usb" add the number "usb1" or similar, ask Rui, if it > shouldn't be described by > > http://wiki.linuxaudio.org/wiki/system_configuration#rtirq > > Rui Nuno Capela > rncbc at rncbc dot org > > > -- > Ubuntu-Studio-users mailing list > [email protected] > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users >
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