Bon alors voilà, j'ai remis mon ancienne carte son et j'ai provoqué le bug :
buxi@buxi-System:~$ dmesg | tail -50
[ 23.214666] audit: type=1400 audit(1598463718.983:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_filter" pid=670 comm="apparmor_parser"
[ 34.005161] IPv6: ADDRCONF(NETDEV_UP): enp3s0: link is not ready
[ 34.601350] r8169 0000:03:00.0 enp3s0: link down
[ 34.601357] r8169 0000:03:00.0 enp3s0: link down
[ 34.601468] IPv6: ADDRCONF(NETDEV_UP): enp3s0: link is not ready
[ 36.284196] r8169 0000:03:00.0 enp3s0: link up
[ 36.284209] IPv6: ADDRCONF(NETDEV_CHANGE): enp3s0: link becomes ready
[ 59.249082] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084 failed with error -2
[ 59.249100] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084d failed with error -2
[ 59.249102] nouveau 0000:01:00.0: msvld: unable to load firmware data
[ 59.249108] nouveau 0000:01:00.0: msvld: init failed, -19
[ 59.249140] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084 failed with error -2
[ 59.249157] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084d failed with error -2
[ 59.249160] nouveau 0000:01:00.0: msvld: unable to load firmware data
[ 59.249165] nouveau 0000:01:00.0: msvld: init failed, -19
[ 77.648372] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 78.404831] nf_conntrack version 0.5.0 (65536 buckets, 262144 max)
[ 7415.455006] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084 failed with error -2
[ 7415.455015] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084d failed with error -2
[ 7415.455017] nouveau 0000:01:00.0: msvld: unable to load firmware data
[ 7415.455021] nouveau 0000:01:00.0: msvld: init failed, -19
[ 9421.577961] perf: interrupt took too long (2504 > 2500), lowering kernel.perf_event_max_sample_rate to 79000
[12155.643801] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12166.611417] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12212.857227] usb 2-1.1.3: USB disconnect, device number 8
[12220.708725] usb 2-1.1.3: new full-speed USB device number 10 using ehci-pci
[12221.235570] usb 2-1.1.3: New USB device found, idVendor=0763, idProduct=2010
[12221.235574] usb 2-1.1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12221.235576] usb 2-1.1.3: Product: Fast Track
[12221.235577] usb 2-1.1.3: Manufacturer: M-Audio
[12221.416325] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12763.509356] usb 2-1.1-port3: disabled by hub (EMI?), re-enabling...
[12763.509763] usb 2-1.1.3: USB disconnect, device number 10
[12763.697273] usb 2-1.1.3: new full-speed USB device number 11 using ehci-pci
[12763.795987] usb 2-1.1.3: New USB device found, idVendor=0763, idProduct=2010
[12763.795991] usb 2-1.1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12763.795993] usb 2-1.1.3: Product: Fast Track
[12763.795994] usb 2-1.1.3: Manufacturer: M-Audio
[12763.965606] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12806.024199] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12819.456330] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12827.463479] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12847.733007] usb 2-1.1.3: USB disconnect, device number 11
[12850.976995] usb 2-1.1.3: new full-speed USB device number 12 using ehci-pci
[12851.321483] usb 2-1.1.3: New USB device found, idVendor=0763, idProduct=2010
[12851.321487] usb 2-1.1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12851.321489] usb 2-1.1.3: Product: Fast Track
[12851.321491] usb 2-1.1.3: Manufacturer: M-Audio
[12851.490579] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12890.548013] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
Voici ce que donne cette commande lorsqu'il n'y a pas de bug :
buxi@buxi-System:~$ dmesg | tail -50
[ 59.249102] nouveau 0000:01:00.0: msvld: unable to load firmware data
[ 59.249108] nouveau 0000:01:00.0: msvld: init failed, -19
[ 59.249140] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084 failed with error -2
[ 59.249157] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084d failed with error -2
[ 59.249160] nouveau 0000:01:00.0: msvld: unable to load firmware data
[ 59.249165] nouveau 0000:01:00.0: msvld: init failed, -19
[ 77.648372] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 78.404831] nf_conntrack version 0.5.0 (65536 buckets, 262144 max)
[ 7415.455006] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084 failed with error -2
[ 7415.455015] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv106_fuc084d failed with error -2
[ 7415.455017] nouveau 0000:01:00.0: msvld: unable to load firmware data
[ 7415.455021] nouveau 0000:01:00.0: msvld: init failed, -19
[ 9421.577961] perf: interrupt took too long (2504 > 2500), lowering kernel.perf_event_max_sample_rate to 79000
[12155.643801] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12166.611417] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12212.857227] usb 2-1.1.3: USB disconnect, device number 8
[12220.708725] usb 2-1.1.3: new full-speed USB device number 10 using ehci-pci
[12221.235570] usb 2-1.1.3: New USB device found, idVendor=0763, idProduct=2010
[12221.235574] usb 2-1.1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12221.235576] usb 2-1.1.3: Product: Fast Track
[12221.235577] usb 2-1.1.3: Manufacturer: M-Audio
[12221.416325] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12763.509356] usb 2-1.1-port3: disabled by hub (EMI?), re-enabling...
[12763.509763] usb 2-1.1.3: USB disconnect, device number 10
[12763.697273] usb 2-1.1.3: new full-speed USB device number 11 using ehci-pci
[12763.795987] usb 2-1.1.3: New USB device found, idVendor=0763, idProduct=2010
[12763.795991] usb 2-1.1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12763.795993] usb 2-1.1.3: Product: Fast Track
[12763.795994] usb 2-1.1.3: Manufacturer: M-Audio
[12763.965606] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12806.024199] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12819.456330] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12827.463479] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12847.733007] usb 2-1.1.3: USB disconnect, device number 11
[12850.976995] usb 2-1.1.3: new full-speed USB device number 12 using ehci-pci
[12851.321483] usb 2-1.1.3: New USB device found, idVendor=0763, idProduct=2010
[12851.321487] usb 2-1.1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12851.321489] usb 2-1.1.3: Product: Fast Track
[12851.321491] usb 2-1.1.3: Manufacturer: M-Audio
[12851.490579] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12890.548013] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12914.036369] usb 2-1.1-port3: disabled by hub (EMI?), re-enabling...
[12914.036706] usb 2-1.1.3: USB disconnect, device number 12
[12914.222548] usb 2-1.1.3: new full-speed USB device number 13 using ehci-pci
[12914.316103] usb 2-1.1.3: New USB device found, idVendor=0763, idProduct=2010
[12914.316107] usb 2-1.1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[12914.316109] usb 2-1.1.3: Product: Fast Track
[12914.316110] usb 2-1.1.3: Manufacturer: M-Audio
[12914.469179] usb 2-1.1.3: cannot submit urb 0, error -28: not enough bandwidth
[12979.479677] perf: interrupt took too long (3150 > 3130), lowering kernel.perf_event_max_sample_rate to 63000