Hi Dan,
Thanks once again for your help.
I ran the commands above (one at a time this time) and the USB 2.0 sockets kept loosing a connection as before (with HQPlayer, Roon doesn’t lose connection through USB 2.0
ON USB 3.0. I tried the test tone again.
I set up HQPlayer upsampling to 352.8kHz. The stuttering was gone but alas every so often, maybe 1 in 4 plays there is a crackle, more like interference than an imperfection in the tone.
Then I ran the test signal just through Roon, not using the HQP NAA. It did better but the crackle did appear, maybe 1 in 6. I tried this both upsampling and straight through in Roon with the same result.
Next I got out my Pi3 and connected it up and played the same test signal though Roon.
No crackle or interference this time.
now listening to this over an over is tinnitus inducing and I don’t think I’d hear the crackle listening to music (you’d probably notice it in speech).
Probably not a scientifically rigourous as one would like but as I say there is only so often one can listen to a test tone!
I have not tested the test tone through USB 2.0 with Roon.
Here is the log you asked for.
root@alloHugo:~# dmesg | grep usb
[ 0.415735] usbcore: registered new interface driver usbfs
[ 0.415821] usbcore: registered new interface driver hub
[ 0.415989] usbcore: registered new device driver usb
[ 0.933483] usbcore: registered new interface driver rtl8150
[ 0.933543] usbcore: registered new interface driver r8152
[ 0.933611] usbcore: registered new interface driver ax88179_178a
[ 0.933670] usbcore: registered new interface driver cdc_ether
[ 0.933726] usbcore: registered new interface driver cdc_subset
[ 0.933824] usbcore: registered new interface driver cdc_ncm
[ 0.933892] usbcore: registered new interface driver asix
[ 0.933952] usbcore: registered new interface driver sr9700_android
[ 0.934037] usbcore: registered new interface driver CoreChips
[ 0.937960] [PowerGate] name: ‘usb3’, on: 1, before SPS_PG_CTL: 0x703360
[ 0.938041] [PowerGate] name: ‘usb3’, on: 1, after SPS_PG_CTL: 0x707760
[ 0.954883] usbcore: registered new interface driver usb-storage
[ 0.955054] usbcore: registered new interface driver usbserial
[ 0.955112] usbcore: registered new interface driver option
[ 0.955172] usbserial: USB Serial support registered for GSM modem (1-port)
[ 0.955236] usbcore: registered new interface driver pl2303
[ 0.955283] usbserial: USB Serial support registered for pl2303
[ 0.957879] usbcore: registered new interface driver xpad
[ 0.957954] usbcore: registered new interface driver usb_acecad
[ 0.958016] usbcore: registered new interface driver aiptek
[ 0.958088] usbcore: registered new interface driver gtco
[ 0.958148] usbcore: registered new interface driver hanwang
[ 0.958205] usbcore: registered new interface driver kbtab
[ 0.958261] usbcore: registered new interface driver wacom
[ 0.967217] rtk_btusb: Realtek Bluetooth USB driver module init, version 2.21
[ 0.967312] usbcore: registered new interface driver rtk_btusb
[ 0.972785] usbcore: registered new interface driver usbhid
[ 0.972849] usbhid: USB HID core driver
[ 0.975905] usbcore: registered new interface driver snd-usb-audio
[ 0.976008] usbcore: registered new interface driver snd-ua101
[ 0.976094] usbcore: registered new interface driver snd-usb-caiaq
[ 1.825044] [atc260x_usb_get_prop] first_power_on = false!
========usb_detect_plugout_event===start det!!========
/imxhdd/opt/1301TAG/sparky_volumio/kernel/drivers/usb/monitor/umonitor_core.c–497, SYS_MSG_USB_B_OUT
[ 1.893622] [PowerGate] name: ‘usb3’, on: 0, before SPS_PG_CTL: 0x717761
[ 1.893641] [PowerGate] name: ‘usb3’, on: 0, after SPS_PG_CTL: 0x717361
/imxhdd/opt/1301TAG/sparky_volumio/kernel/drivers/usb/monitor/umonitor_core.c–746, SYS_MSG_USB_A_IN
[ 2.523751] /imxhdd/opt/1301TAG/sparky_volumio/kernel/drivers/usb/monitor/umonitor_api.c–1212, wake_lock !!!
[ 2.525706] [PowerGate] name: ‘usb3’, on: 1, before SPS_PG_CTL: 0x713361
[ 2.525774] [PowerGate] name: ‘usb3’, on: 1, after SPS_PG_CTL: 0x717761
[ 2.696267] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 2.696276] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.696283] usb usb1: Product: xHCI Host Controller
[ 2.696290] usb usb1: Manufacturer: Linux 3.10.38 xhci-hcd
[ 2.696296] usb usb1: SerialNumber: xhci-hcd.0.auto
[ 2.883956] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[ 2.883968] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.883976] usb usb2: Product: xHCI Host Controller
[ 2.883983] usb usb2: Manufacturer: Linux 3.10.38 xhci-hcd
[ 2.883989] usb usb2: SerialNumber: xhci-hcd.0.auto
[ 10.953063] [PowerGate] name: ‘usb2_0’, on: 1, before SPS_PG_CTL: 0x717761
[ 10.955308] [PowerGate] name: ‘usb2_0’, on: 1, after SPS_PG_CTL: 0x71ff61
[ 21.482912] [PowerGate] name: ‘usb2_0’, on: 0, before SPS_PG_CTL: 0x71ff61
[ 21.482935] [PowerGate] name: ‘usb2_0’, on: 0, after SPS_PG_CTL: 0x71f761
[ 21.483570] [PowerGate] name: ‘usb2_0’, on: 1, before SPS_PG_CTL: 0x717761
[ 21.483640] [PowerGate] name: ‘usb2_0’, on: 1, after SPS_PG_CTL: 0x71ff61
[ 21.483661] usb reset OK: 0.
[ 21.484575] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
[ 21.484587] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 21.484595] usb usb3: Product: AOTG USB Host Controller Driver
[ 21.484603] usb usb3: Manufacturer: Linux 3.10.38 aotg_hub_hcd
[ 21.484610] usb usb3: SerialNumber: aotg_hcd.0
[ 21.882949] usb 3-1: new high-speed USB device number 2 using aotg_hcd
[ 22.023448] usb 3-1: New USB device found, idVendor=1a40, idProduct=0101
[ 22.023461] usb 3-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 22.023469] usb 3-1: Product: USB 2.0 Hub
[ 22.303087] usb 3-1.2: new high-speed USB device number 3 using aotg_hcd
[ 22.404006] usb 3-1.2: New USB device found, idVendor=245f, idProduct=1213
[ 22.404024] usb 3-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 22.404032] usb 3-1.2: Product: HugoTT
[ 22.404039] usb 3-1.2: Manufacturer: Chord Electronics Ltd
[ 22.404045] usb 3-1.2: SerialNumber: 413-001
[ 22.410951] usb_audio: Warning! Unlikely big volume range (=32767), cval->res is probably wrong.
[ 22.410969] usb_audio: [10] FU [HugoTT Playback Volume] ch = 2, val = -32767/0/1
[ 22.411732] usb_audio: Warning! Unlikely big volume range (=32767), cval->res is probably wrong.
[ 22.411742] usb_audio: [10] FU [HugoTT Playback Volume] ch = 1, val = -32767/0/1
[ 681.679718] usb 3-1.2: USB disconnect, device number 3
[ 741.862987] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[ 741.884326] usb 1-1: New USB device found, idVendor=245f, idProduct=1213
[ 741.884377] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 741.884411] usb 1-1: Product: HugoTT
[ 741.884441] usb 1-1: Manufacturer: Chord Electronics Ltd
[ 741.884469] usb 1-1: SerialNumber: 413-001
[ 741.922340] usb_audio: Warning! Unlikely big volume range (=32767), cval->res is probably wrong.
[ 741.922352] usb_audio: [10] FU [HugoTT Playback Volume] ch = 2, val = -32767/0/1
[ 741.922892] usb_audio: Warning! Unlikely big volume range (=32767), cval->res is probably wrong.
[ 741.922899] usb_audio: [10] FU [HugoTT Playback Volume] ch = 1, val = -32767/0/1
[ 2487.099950] usb 1-1: USB disconnect, device number 2
[ 3251.562987] usb 1-1: new high-speed USB device number 3 using xhci-hcd
[ 3251.584343] usb 1-1: New USB device found, idVendor=245f, idProduct=1213
[ 3251.584395] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3251.584428] usb 1-1: Product: HugoTT
[ 3251.584504] usb 1-1: Manufacturer: Chord Electronics Ltd
[ 3251.584537] usb 1-1: SerialNumber: 413-001
[ 3251.618341] usb_audio: Warning! Unlikely big volume range (=32767), cval->res is probably wrong.
[ 3251.618355] usb_audio: [10] FU [HugoTT Playback Volume] ch = 2, val = -32767/0/1
[ 3251.618908] usb_audio: Warning! Unlikely big volume range (=32767), cval->res is probably wrong.
root@alloHugo:~#
Thanks again, regards, John.
.sjb