In message , Andy Burns
 writes
>Adrian wrote:
>
>> I have tried a  simple one sourced via Amazon, which is billed as
>>being suitable for a  Laptop, but whilst it works fine on Windows, it
>>won't play on my Pi.
>
>what do "lsusb" and "dmesg" have to say?
>

Bus 001 Device 014: ID 1908:2070 GEMBIRD
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

and

dmesg | grep -i usb gives

[    0.071203] usbcore: registered new interface driver usbfs
[    0.071258] usbcore: registered new interface driver hub
[    0.071353] usbcore: registered new device driver usb
[    0.275629] usbcore: registered new interface driver lan78xx
[    0.275686] usbcore: registered new interface driver smsc95xx
[    0.303548] dwc_otg 3f980000.usb: base=(ptrval)
[    0.704747] dwc_otg 3f980000.usb: DWC OTG Controller
[    0.704781] dwc_otg 3f980000.usb: new USB bus registered, assigned
bus number 1
[    0.704817] dwc_otg 3f980000.usb: irq 56, io mem 0x00000000
[    0.705123] usb usb1: New USB device found, idVendor=1d6b,
idProduct=0002, bcdDevice= 4.19
[    0.705134] usb usb1: New USB device strings: Mfr=3, Product=2,
SerialNumber=1
[    0.705143] usb usb1: Product: DWC OTG Controller
[    0.705153] usb usb1: Manufacturer: Linux 4.19.66-v7+ dwc_otg_hcd
[    0.705162] usb usb1: SerialNumber: 3f980000.usb
[    0.705775] hub 1-0:1.0: USB hub found
[    0.706668] usbcore: registered new interface driver usb-storage
[    0.711122] usbcore: registered new interface driver usbhid
[    0.711127] usbhid: USB HID core driver
[    1.141861] usb 1-1: new high-speed USB device number 2 using dwc_otg
[    1.382184] usb 1-1: New USB device found, idVendor=0424,
idProduct=9514, bcdDevice= 2.00
[    1.382201] usb 1-1: New USB device strings: Mfr=0, Product=0,
SerialNumber=0
[    1.382846] hub 1-1:1.0: USB hub found
[    1.701860] usb 1-1.1: new high-speed USB device number 3 using
dwc_otg
[    1.832246] usb 1-1.1: New USB device found, idVendor=0424,
idProduct=ec00, bcdDevice= 2.00
[    1.832261] usb 1-1.1: New USB device strings: Mfr=0, Product=0,
SerialNumber=0
[    1.925535] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at
usb-3f980000.usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:71:3a:04
[    9.223975] usbcore: registered new interface driver brcmfmac
[9423250.567791] usb 1-1.4: new full-speed USB device number 4 using
dwc_otg
[9423250.710552] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9423250.710569] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9423250.710579] usb 1-1.4: Product: USB2.0 Device
[9423250.710588] usb 1-1.4: Manufacturer: Generic
[9423250.710597] usb 1-1.4: SerialNumber: 20130100ph0
[9423252.091545] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423252.111823] usbcore: registered new interface driver snd-usb-audio
[9423704.977671] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423705.184433] usb 1-1.4: USB disconnect, device number 4
[9423707.019453] usb 1-1.4: new full-speed USB device number 5 using
dwc_otg
[9423707.162174] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9423707.162190] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9423707.162199] usb 1-1.4: Product: USB2.0 Device
[9423707.162208] usb 1-1.4: Manufacturer: Generic
[9423707.162217] usb 1-1.4: SerialNumber: 20130100ph0
[9423707.170181] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423731.785299] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423731.808447] usb 1-1.4: USB disconnect, device number 5
[9423733.899559] usb 1-1.4: new full-speed USB device number 6 using
dwc_otg
[9423734.042302] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9423734.042318] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9423734.042327] usb 1-1.4: Product: USB2.0 Device
[9423734.042336] usb 1-1.4: Manufacturer: Generic
[9423734.042345] usb 1-1.4: SerialNumber: 20130100ph0
[9423734.047915] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423756.931672] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423757.152434] usb 1-1.4: USB disconnect, device number 6
[9423758.979647] usb 1-1.4: new full-speed USB device number 7 using
dwc_otg
[9423759.122422] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9423759.122439] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9423759.122448] usb 1-1.4: Product: USB2.0 Device
[9423759.122458] usb 1-1.4: Manufacturer: Generic
[9423759.122467] usb 1-1.4: SerialNumber: 20130100ph0
[9423759.127793] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423780.565297] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423780.704300] usb 1-1.4: USB disconnect, device number 7
[9423782.539745] usb 1-1.4: new full-speed USB device number 8 using
dwc_otg
[9423782.682562] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9423782.682580] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9423782.682590] usb 1-1.4: Product: USB2.0 Device
[9423782.682599] usb 1-1.4: Manufacturer: Generic
[9423782.682609] usb 1-1.4: SerialNumber: 20130100ph0
[9423782.687913] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423807.021794] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423807.072447] usb 1-1.4: USB disconnect, device number 8
[9423808.899843] usb 1-1.4: new full-speed USB device number 9 using
dwc_otg
[9423809.041422] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9423809.041438] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9423809.041448] usb 1-1.4: Product: USB2.0 Device
[9423809.041458] usb 1-1.4: Manufacturer: Generic
[9423809.041467] usb 1-1.4: SerialNumber: 20130100ph0
[9423809.046789] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9423867.744469] usb 1-1.4: USB disconnect, device number 9
[9426821.512090] usb 1-1.4: new full-speed USB device number 10 using
dwc_otg
[9426821.653685] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9426821.653702] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9426821.653711] usb 1-1.4: Product: USB2.0 Device
[9426821.653721] usb 1-1.4: Manufacturer: Generic
[9426821.653730] usb 1-1.4: SerialNumber: 20130100ph0
[9426821.659298] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9426843.159932] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9426843.232472] usb 1-1.4: USB disconnect, device number 10
[9426845.062187] usb 1-1.4: new full-speed USB device number 11 using
dwc_otg
[9426845.204935] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9426845.204951] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9426845.204961] usb 1-1.4: Product: USB2.0 Device
[9426845.204970] usb 1-1.4: Manufacturer: Generic
[9426845.204979] usb 1-1.4: SerialNumber: 20130100ph0
[9426845.210297] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9426858.929804] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9426859.104445] usb 1-1.4: USB disconnect, device number 11
[9426860.932256] usb 1-1.4: new full-speed USB device number 12 using
dwc_otg
[9426861.075060] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9426861.075076] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9426861.075086] usb 1-1.4: Product: USB2.0 Device
[9426861.075095] usb 1-1.4: Manufacturer: Generic
[9426861.075104] usb 1-1.4: SerialNumber: 20130100ph0
[9426861.079429] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9426969.224180] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9426969.440463] usb 1-1.4: USB disconnect, device number 12
[9426971.272711] usb 1-1.4: new full-speed USB device number 13 using
dwc_otg
[9426971.415433] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9426971.415450] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9426971.415460] usb 1-1.4: Product: USB2.0 Device
[9426971.415469] usb 1-1.4: Manufacturer: Generic
[9426971.415478] usb 1-1.4: SerialNumber: 20130100ph0
[9426971.420798] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9427003.518307] usb 1-1.4: 1:1: cannot get freq at ep 0x2
[9427003.744447] usb 1-1.4: USB disconnect, device number 13
[9427005.572860] usb 1-1.4: new full-speed USB device number 14 using
dwc_otg
[9427005.715687] usb 1-1.4: New USB device found, idVendor=1908,
idProduct=2070, bcdDevice= 1.00
[9427005.715704] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[9427005.715713] usb 1-1.4: Product: USB2.0 Device
[9427005.715723] usb 1-1.4: Manufacturer: Generic
[9427005.715732] usb 1-1.4: SerialNumber: 20130100ph0
[9427005.721173] usb 1-1.4: 1:1: cannot get freq at ep 0x2


Adrian
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