(...)
This is the parameters in QjackCtl preferences:

Device

hw:0     HDA Intel
hw:0,0  ALC262 Analog
-
hw:5     Fast Track Pro
hw:5,1  USB Audio #1
FWIW, I'm using this very interface with (Up-to-date LTS : Right now it's a 16) Ubuntu too, without any of the problems mentioned.

# My (current) jack settings
⚡ cat ~/.jackdrc                      
/usr/bin/jackd -P90 -p128 -t2000 -dalsa -dhw:Pro,0 -r44100 -p512 -n2

# My (current) kernel
⚡ uname -a
Linux xxxxx 4.4.0-45-lowlatency #66-Ubuntu SMP PREEMPT Wed Oct 19 14:57:51 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

# CPU
⚡ lshw -c cpu      
WARNING: you should run this program as super-user.
  *-cpu                  
       product: Intel(R) Core(TM) i5-4250U CPU @ 1.30GHz
       vendor: Intel Corp.
       physical id: 1
       bus info: cpu@0
       size: 2470MHz
       capacity: 2600MHz
       width: 64 bits

# RAM
⚡ lshw -c memory   
WARNING: you should run this program as super-user.
  *-memory               
       description: System memory
       physical id: 0
       size: 3878MiB

My laptop characteristics are the following:


Relatively to the computer audio system:

leo@leo-R710:~$ arecord -l && aplay -l
**** Lista di CAPTURE dispositivi hardware ****
scheda 0: Intel [HDA Intel], dispositivo 0: ALC262 Analog [ALC262 Analog]
  Sottoperiferiche: 1/1
  Sottoperiferica #0: subdevice #0
scheda 5: Pro [FastTrack Pro], dispositivo 1: USB Audio [USB Audio #1]
  Sottoperiferiche: 1/1
  Sottoperiferica #0: subdevice #0
**** Lista di PLAYBACK dispositivi hardware ****
scheda 0: Intel [HDA Intel], dispositivo 0: ALC262 Analog [ALC262 Analog]
  Sottoperiferiche: 1/1
  Sottoperiferica #0: subdevice #0
scheda 0: Intel [HDA Intel], dispositivo 3: HDMI 0 [HDMI 0]
  Sottoperiferiche: 1/1
  Sottoperiferica #0: subdevice #0
scheda 5: Pro [FastTrack Pro], dispositivo 0: USB Audio [USB Audio]
  Sottoperiferiche: 1/1
  Sottoperiferica #0: subdevice #0
scheda 5: Pro [FastTrack Pro], dispositivo 1: USB Audio [USB Audio #1]
  Sottoperiferiche: 1/1
  Sottoperiferica #0: subdevice #0


leo@leo-R710:~$ lsusb
Bus 001 Device 002: ID 1058:1100 Western Digital Technologies, Inc.
Bus 001 Device 003: ID 0ac8:c302 Z-Star Microelectronics Corp. Vega USB 2.0 Camera
Bus 006 Device 002: ID 046d:c069 Logitech, Inc.
Bus 007 Device 003: ID 0763:2012 Midiman M-Audio Fast Track Pro
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


leo@leo-R710:~$ cat /proc/asound/modules
 0 snd_hda_intel
 5 snd_usb_audio


leo@leo-R710:~$ cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xf6200000 irq 47
 5 [Pro            ]: USB-Audio - FastTrack Pro
                      M-Audio FastTrack Pro at usb-0000:00:1d.1-1, full speed



I've downloaded a low latency kernel and installed but then I used Ubuntu Tweak to clean my computer, as I always do after I made an update, and it deleted also the kernel because it said it was older than the actual.
The thing that pisses me more it's the Fast Track works perfectly on Cubase in Windows, but I don't want to go to that crappy system for any reason on the earth.
As I wrote, being not expert at all, I have no idea about what to do. I would like to record with this card but if things go in this way yet, I'll sell it and get another card suggested directly by Ardour.
There's a second hand Presonus 1818VSL so I might go for that.
The strange thing is the guy at the address I wrote above, Linux Musicians, seens to have solved in the way he wrote.
This thing is tragic, you have no idea how tired I am.
Anyways.
We'll see if there's a way to solve it.
Thank you all.

Leo



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