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USB mouse/keyboard not working #166

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opened 2026-02-20 08:20:52 -05:00 by deekerman · 9 comments
deekerman commented 2026-02-20 08:20:52 -05:00
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Originally created by @lcsfox on GitHub (Mar 20, 2025).

Hi,
I'm having issues establishing USB connection between JetKVM and my serever.
When I plug a USB type C cable to the JetKVM and my server I get

[ 1280.743736] usb 3-1: new high-speed USB device number 12 using xhci_hcd
[ 1280.743997] usb 3-1: Device not responding to setup address.
[ 1280.949161] usb 3-1: Device not responding to setup address.
[ 1281.156800] usb 3-1: device not accepting address 12, error -71
[ 1281.157045] usb usb3-port1: unable to enumerate USB device
[ 1295.343669] usb 3-1: new high-speed USB device number 13 using xhci_hcd
[ 1295.719697] usb 3-1: device descriptor read/64, error -71
[ 1296.199667] usb 3-1: device descriptor read/64, error -71
[ 1296.679618] usb 3-1: new high-speed USB device number 14 using xhci_hcd
[ 1296.852705] usb 3-1: device descriptor read/64, error -71
[ 1297.130840] usb 3-1: device descriptor read/64, error -71
[ 1297.236872] usb usb3-port1: attempt power cycle
[ 1297.679668] usb 3-1: new high-speed USB device number 15 using xhci_hcd
[ 1297.679852] usb 3-1: Device not responding to setup address.
[ 1297.884902] usb 3-1: Device not responding to setup address.
[ 1298.092652] usb 3-1: device not accepting address 15, error -71
[ 1298.265680] usb 3-1: new high-speed USB device number 16 using xhci_hcd
[ 1298.265862] usb 3-1: Device not responding to setup address.
[ 1298.468917] usb 3-1: Device not responding to setup address.
[ 1298.676657] usb 3-1: device not accepting address 16, error -71
[ 1298.676939] usb usb3-port1: unable to enumerate USB device

This is with a direct Type-C to Type-C cable.
I've tried to connect the type C via the split cable provided and on dmesg side I get nothing when I plug into the device.
Tried with different cables, A -> C, C -> C and non of those were able to establish connection.
Tried with another computer and got the same result.

I'm powering up the JetKVM using the RJ11 cable.
When I try to power the JetKVM via the splitter (without the extension board) it appears to be working

Originally created by @lcsfox on GitHub (Mar 20, 2025). Hi, I'm having issues establishing USB connection between JetKVM and my serever. When I plug a USB type C cable to the JetKVM and my server I get [ 1280.743736] usb 3-1: new high-speed USB device number 12 using xhci_hcd [ 1280.743997] usb 3-1: Device not responding to setup address. [ 1280.949161] usb 3-1: Device not responding to setup address. [ 1281.156800] usb 3-1: device not accepting address 12, error -71 [ 1281.157045] usb usb3-port1: unable to enumerate USB device [ 1295.343669] usb 3-1: new high-speed USB device number 13 using xhci_hcd [ 1295.719697] usb 3-1: device descriptor read/64, error -71 [ 1296.199667] usb 3-1: device descriptor read/64, error -71 [ 1296.679618] usb 3-1: new high-speed USB device number 14 using xhci_hcd [ 1296.852705] usb 3-1: device descriptor read/64, error -71 [ 1297.130840] usb 3-1: device descriptor read/64, error -71 [ 1297.236872] usb usb3-port1: attempt power cycle [ 1297.679668] usb 3-1: new high-speed USB device number 15 using xhci_hcd [ 1297.679852] usb 3-1: Device not responding to setup address. [ 1297.884902] usb 3-1: Device not responding to setup address. [ 1298.092652] usb 3-1: device not accepting address 15, error -71 [ 1298.265680] usb 3-1: new high-speed USB device number 16 using xhci_hcd [ 1298.265862] usb 3-1: Device not responding to setup address. [ 1298.468917] usb 3-1: Device not responding to setup address. [ 1298.676657] usb 3-1: device not accepting address 16, error -71 [ 1298.676939] usb usb3-port1: unable to enumerate USB device This is with a direct Type-C to Type-C cable. I've tried to connect the type C via the split cable provided and on dmesg side I get nothing when I plug into the device. Tried with different cables, A -> C, C -> C and non of those were able to establish connection. Tried with another computer and got the same result. I'm powering up the JetKVM using the RJ11 cable. When I try to power the JetKVM via the splitter (without the extension board) it appears to be working
deekerman commented 2026-02-20 08:20:53 -05:00
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@WhiteyDude commented on GitHub (Mar 31, 2025):

I am having effectively the same issue.

App: 0.3.8
System: 0.2.3

On the dev channel, have tried all possible USB combinations under Hardware. Unless I go custom and select none, I get the following:

[ 1119.011614] usb 1-4: device not accepting address 79, error -71
[ 1119.139726] usb 1-4: new full-speed USB device number 80 using xhci_hcd
[ 1119.139984] usb 1-4: Device not responding to setup address.
[ 1119.347673] usb 1-4: Device not responding to setup address.
[ 1119.559807] usb 1-4: device not accepting address 80, error -71
[ 1119.560400] usb usb1-port4: unable to enumerate USB device

I am running Debian 12.6 on a Lenovo X1 Carbon Gen 8

My only difference here is I'm powering the device from the USB-C < - > C cable to the laptop.

@WhiteyDude commented on GitHub (Mar 31, 2025): I am having effectively the same issue. App: 0.3.8 System: 0.2.3 On the dev channel, have tried all possible USB combinations under Hardware. Unless I go custom and select none, I get the following: ``` [ 1119.011614] usb 1-4: device not accepting address 79, error -71 [ 1119.139726] usb 1-4: new full-speed USB device number 80 using xhci_hcd [ 1119.139984] usb 1-4: Device not responding to setup address. [ 1119.347673] usb 1-4: Device not responding to setup address. [ 1119.559807] usb 1-4: device not accepting address 80, error -71 [ 1119.560400] usb usb1-port4: unable to enumerate USB device ``` I am running Debian 12.6 on a Lenovo X1 Carbon Gen 8 My only difference here is I'm powering the device from the USB-C < - > C cable to the laptop.
deekerman commented 2026-02-20 08:20:53 -05:00
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@linusali commented on GitHub (Apr 22, 2025):

for me setting the USB class to custom and disabling either "Relative Mouse" or "USB Mass Storage" helped.

@linusali commented on GitHub (Apr 22, 2025): for me setting the USB class to custom and disabling either "Relative Mouse" or "USB Mass Storage" helped.
deekerman commented 2026-02-20 08:20:53 -05:00
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@sckid1108 commented on GitHub (May 1, 2025):

Same I cannot get mouse or keyboard working under any circumstances

@sckid1108 commented on GitHub (May 1, 2025): Same I cannot get mouse or keyboard working under any circumstances
deekerman commented 2026-02-20 08:20:53 -05:00
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@mrrtfm commented on GitHub (May 29, 2025):

Changing the usb identifier to Dell multimedia keyboard instantly resolved this issue for me. I was worried it would break mounting files, but it works like a charm.

@mrrtfm commented on GitHub (May 29, 2025): Changing the usb identifier to Dell multimedia keyboard instantly resolved this issue for me. I was worried it would break mounting files, but it works like a charm.
deekerman commented 2026-02-20 08:20:53 -05:00
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@172pilot commented on GitHub (Sep 23, 2025):

I'm having the same issue on a Raspberry Pi 4. The JetKVM worked earlier today on a Dell SFF desktop, but moving it to a RPi which is otherwise working fine, I can't use the keyboard, mouse, or mount storage.
Here's a snippet of my dmesg as i changed the USB config in the JetKVM hardware config:

`
[ 652.762881] hid-generic 0003:413C:2011.0001: input,hidraw0: USB HID v1.01 Keyboard [Dell Inc. Multimedia Pro Keyboard] on usb-0000:01:00.0-1.4/input0
[ 652.763648] usb 1-1.4: USB disconnect, device number 33
[ 653.166609] usb 1-1.4: new high-speed USB device number 34 using xhci_hcd
[ 653.998921] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 654.070656] usb 1-1.4: new high-speed USB device number 35 using xhci_hcd
[ 654.902916] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 654.903505] usb 1-1-port4: attempt power cycle
[ 656.042941] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 656.114660] usb 1-1.4: new high-speed USB device number 37 using xhci_hcd
[ 656.114917] usb 1-1.4: Device not responding to setup address.
[ 656.318887] usb 1-1.4: Device not responding to setup address.
[ 656.522665] usb 1-1.4: device not accepting address 37, error -71
[ 656.523038] usb 1-1-port4: unable to enumerate USB device
[ 656.722681] usb 1-1.4: new high-speed USB device number 38 using xhci_hcd
[ 656.795071] usb 1-1.4: Device not responding to setup address.
[ 656.998861] usb 1-1.4: Device not responding to setup address.
[ 657.202653] usb 1-1.4: device not accepting address 38, error -71
[ 658.038920] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 658.039138] usb 1-1-port4: attempt power cycle
[ 659.178940] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 660.026953] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 660.027168] usb 1-1-port4: unable to enumerate USB device
[ 701.199314] usb 1-1.4: new high-speed USB device number 42 using xhci_hcd
[ 702.031601] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 702.863597] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 702.864119] usb 1-1-port4: attempt power cycle
[ 704.003861] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 704.075383] usb 1-1.4: new high-speed USB device number 45 using xhci_hcd
[ 704.075620] usb 1-1.4: Device not responding to setup address.
[ 704.279546] usb 1-1.4: Device not responding to setup address.
[ 704.483365] usb 1-1.4: device not accepting address 45, error -71
[ 704.483723] usb 1-1-port4: unable to enumerate USB device
[ 705.463637] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 705.535362] usb 1-1.4: new high-speed USB device number 47 using xhci_hcd
[ 706.383628] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 706.383910] usb 1-1-port4: attempt power cycle
[ 707.523657] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 707.595390] usb 1-1.4: new high-speed USB device number 49 using xhci_hcd
[ 707.595591] usb 1-1.4: Device not responding to setup address.
[ 707.799570] usb 1-1.4: Device not responding to setup address.
[ 708.003400] usb 1-1.4: device not accepting address 49, error -71
[ 708.003613] usb 1-1-port4: unable to enumerate USB device
[ 708.979633] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 709.811725] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 709.812235] usb 1-1-port4: attempt power cycle
[ 710.951790] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 711.023482] usb 1-1.4: new high-speed USB device number 53 using xhci_hcd
[ 711.023725] usb 1-1.4: Device not responding to setup address.
[ 711.227678] usb 1-1.4: Device not responding to setup address.
[ 711.431472] usb 1-1.4: device not accepting address 53, error -71
[ 711.431799] usb 1-1-port4: unable to enumerate USB device
[ 711.631476] usb 1-1.4: new high-speed USB device number 54 using xhci_hcd
[ 712.463999] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 712.535521] usb 1-1.4: new high-speed USB device number 55 using xhci_hcd
[ 713.371755] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 713.372040] usb 1-1-port4: attempt power cycle
[ 714.515778] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 714.587498] usb 1-1.4: new high-speed USB device number 57 using xhci_hcd
[ 714.587709] usb 1-1.4: Device not responding to setup address.
[ 714.791679] usb 1-1.4: Device not responding to setup address.
[ 714.995519] usb 1-1.4: device not accepting address 57, error -71
[ 714.995832] usb 1-1-port4: unable to enumerate USB device
[ 715.971772] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 716.043531] usb 1-1.4: new high-speed USB device number 59 using xhci_hcd
[ 716.132269] usb 1-1.4: New USB device found, idVendor=413c, idProduct=2011, bcdDevice= 1.00
[ 716.132286] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 716.132292] usb 1-1.4: Product: Multimedia Pro Keyboard
[ 716.132296] usb 1-1.4: Manufacturer: Dell Inc.
[ 716.132299] usb 1-1.4: SerialNumber: 2&3585d7b&0&1
[ 716.135275] input: Dell Inc. Multimedia Pro Keyboard as /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.4/1-1.4:1.0/0003:413C:2011.0002/input/input5
[ 716.275890] hid-generic 0003:413C:2011.0002: input,hidraw0: USB HID v1.01 Keyboard [Dell Inc. Multimedia Pro Keyboard] on usb-0000:01:00.0-1.4/input0
[ 716.276586] usb 1-1.4: USB disconnect, device number 59
[ 716.679547] usb 1-1.4: new high-speed USB device number 60 using xhci_hcd
[ 717.511800] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 717.583550] usb 1-1.4: new high-speed USB device number 61 using xhci_hcd
[ 718.415872] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 718.416469] usb 1-1-port4: attempt power cycle
[ 719.555887] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 720.387884] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad?
[ 720.388398] usb 1-1-port4: unable to enumerate USB device

`

The USB cable is presumably good (ie; it can communicate well enough to identify it as a "DELL" keyboard, which is what I have the JETKVM set to, since someone else mentioned that working.
I did update the JetKVM today to try to solve this.
I am on App 0.4.8 and System 0.2.5

Thanks..

@172pilot commented on GitHub (Sep 23, 2025): I'm having the same issue on a Raspberry Pi 4. The JetKVM worked earlier today on a Dell SFF desktop, but moving it to a RPi which is otherwise working fine, I can't use the keyboard, mouse, or mount storage. Here's a snippet of my dmesg as i changed the USB config in the JetKVM hardware config: ` [ 652.762881] hid-generic 0003:413C:2011.0001: input,hidraw0: USB HID v1.01 Keyboard [Dell Inc. Multimedia Pro Keyboard] on usb-0000:01:00.0-1.4/input0 [ 652.763648] usb 1-1.4: USB disconnect, device number 33 [ 653.166609] usb 1-1.4: new high-speed USB device number 34 using xhci_hcd [ 653.998921] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 654.070656] usb 1-1.4: new high-speed USB device number 35 using xhci_hcd [ 654.902916] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 654.903505] usb 1-1-port4: attempt power cycle [ 656.042941] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 656.114660] usb 1-1.4: new high-speed USB device number 37 using xhci_hcd [ 656.114917] usb 1-1.4: Device not responding to setup address. [ 656.318887] usb 1-1.4: Device not responding to setup address. [ 656.522665] usb 1-1.4: device not accepting address 37, error -71 [ 656.523038] usb 1-1-port4: unable to enumerate USB device [ 656.722681] usb 1-1.4: new high-speed USB device number 38 using xhci_hcd [ 656.795071] usb 1-1.4: Device not responding to setup address. [ 656.998861] usb 1-1.4: Device not responding to setup address. [ 657.202653] usb 1-1.4: device not accepting address 38, error -71 [ 658.038920] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 658.039138] usb 1-1-port4: attempt power cycle [ 659.178940] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 660.026953] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 660.027168] usb 1-1-port4: unable to enumerate USB device [ 701.199314] usb 1-1.4: new high-speed USB device number 42 using xhci_hcd [ 702.031601] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 702.863597] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 702.864119] usb 1-1-port4: attempt power cycle [ 704.003861] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 704.075383] usb 1-1.4: new high-speed USB device number 45 using xhci_hcd [ 704.075620] usb 1-1.4: Device not responding to setup address. [ 704.279546] usb 1-1.4: Device not responding to setup address. [ 704.483365] usb 1-1.4: device not accepting address 45, error -71 [ 704.483723] usb 1-1-port4: unable to enumerate USB device [ 705.463637] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 705.535362] usb 1-1.4: new high-speed USB device number 47 using xhci_hcd [ 706.383628] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 706.383910] usb 1-1-port4: attempt power cycle [ 707.523657] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 707.595390] usb 1-1.4: new high-speed USB device number 49 using xhci_hcd [ 707.595591] usb 1-1.4: Device not responding to setup address. [ 707.799570] usb 1-1.4: Device not responding to setup address. [ 708.003400] usb 1-1.4: device not accepting address 49, error -71 [ 708.003613] usb 1-1-port4: unable to enumerate USB device [ 708.979633] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 709.811725] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 709.812235] usb 1-1-port4: attempt power cycle [ 710.951790] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 711.023482] usb 1-1.4: new high-speed USB device number 53 using xhci_hcd [ 711.023725] usb 1-1.4: Device not responding to setup address. [ 711.227678] usb 1-1.4: Device not responding to setup address. [ 711.431472] usb 1-1.4: device not accepting address 53, error -71 [ 711.431799] usb 1-1-port4: unable to enumerate USB device [ 711.631476] usb 1-1.4: new high-speed USB device number 54 using xhci_hcd [ 712.463999] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 712.535521] usb 1-1.4: new high-speed USB device number 55 using xhci_hcd [ 713.371755] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 713.372040] usb 1-1-port4: attempt power cycle [ 714.515778] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 714.587498] usb 1-1.4: new high-speed USB device number 57 using xhci_hcd [ 714.587709] usb 1-1.4: Device not responding to setup address. [ 714.791679] usb 1-1.4: Device not responding to setup address. [ 714.995519] usb 1-1.4: device not accepting address 57, error -71 [ 714.995832] usb 1-1-port4: unable to enumerate USB device [ 715.971772] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 716.043531] usb 1-1.4: new high-speed USB device number 59 using xhci_hcd [ 716.132269] usb 1-1.4: New USB device found, idVendor=413c, idProduct=2011, bcdDevice= 1.00 [ 716.132286] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 716.132292] usb 1-1.4: Product: Multimedia Pro Keyboard [ 716.132296] usb 1-1.4: Manufacturer: Dell Inc. [ 716.132299] usb 1-1.4: SerialNumber: 2&3585d7b&0&1 [ 716.135275] input: Dell Inc. Multimedia Pro Keyboard as /devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.4/1-1.4:1.0/0003:413C:2011.0002/input/input5 [ 716.275890] hid-generic 0003:413C:2011.0002: input,hidraw0: USB HID v1.01 Keyboard [Dell Inc. Multimedia Pro Keyboard] on usb-0000:01:00.0-1.4/input0 [ 716.276586] usb 1-1.4: USB disconnect, device number 59 [ 716.679547] usb 1-1.4: new high-speed USB device number 60 using xhci_hcd [ 717.511800] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 717.583550] usb 1-1.4: new high-speed USB device number 61 using xhci_hcd [ 718.415872] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 718.416469] usb 1-1-port4: attempt power cycle [ 719.555887] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 720.387884] usb 1-1-port4: Cannot enable. Maybe the USB cable is bad? [ 720.388398] usb 1-1-port4: unable to enumerate USB device ` The USB cable is presumably good (ie; it can communicate well enough to identify it as a "DELL" keyboard, which is what I have the JETKVM set to, since someone else mentioned that working. I did update the JetKVM today to try to solve this. I am on App 0.4.8 and System 0.2.5 Thanks..
deekerman commented 2026-02-20 08:20:53 -05:00
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@kahlstrm commented on GitHub (Dec 21, 2025):

I had the same issue, and it turned out to be the USB-C Y-power splitter causing the problem. After removing it, I haven't encountered the same behavior afterwards, leading me to assume that the Y-splitter is faulty.

@kahlstrm commented on GitHub (Dec 21, 2025): I had the same issue, and it turned out to be the USB-C Y-power splitter causing the problem. After removing it, I haven't encountered the same behavior afterwards, leading me to assume that the Y-splitter is faulty.
deekerman commented 2026-02-20 08:20:53 -05:00
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@danaimone commented on GitHub (Dec 27, 2025):

I had the same issue, and it turned out to be the USB-C Y-power splitter causing the problem. After removing it, I haven't encountered the same behavior afterwards, leading me to assume that the Y-splitter is faulty.

What did you end up doing instead? I'm thinking this is likely my issue as well.

@danaimone commented on GitHub (Dec 27, 2025): > I had the same issue, and it turned out to be the USB-C Y-power splitter causing the problem. After removing it, I haven't encountered the same behavior afterwards, leading me to assume that the Y-splitter is faulty. What did you end up doing instead? I'm thinking this is likely my issue as well.
deekerman commented 2026-02-20 08:20:53 -05:00
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@kahlstrm commented on GitHub (Dec 28, 2025):

I had the same issue, and it turned out to be the USB-C Y-power splitter causing the problem. After removing it, I haven't encountered the same behavior afterwards, leading me to assume that the Y-splitter is faulty.

What did you end up doing instead? I'm thinking this is likely my issue as well.

For now, I've been using it with the USB power coming from the device, as it's always powered on. I have 2 JetKVMs, and the other Y-splitter seems to be working fine, so I don't have that big of an issue, as I could just use the other one.

@kahlstrm commented on GitHub (Dec 28, 2025): > > I had the same issue, and it turned out to be the USB-C Y-power splitter causing the problem. After removing it, I haven't encountered the same behavior afterwards, leading me to assume that the Y-splitter is faulty. > > What did you end up doing instead? I'm thinking this is likely my issue as well. For now, I've been using it with the USB power coming from the device, as it's always powered on. I have 2 JetKVMs, and the other Y-splitter seems to be working fine, so I don't have that big of an issue, as I could just use the other one.
deekerman commented 2026-02-20 08:20:53 -05:00
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@hi-ko commented on GitHub (Feb 13, 2026):

I had a similar issue with an odroidm1, but it was not related to the spitter cable.
The jetkvm only connects to a native usb 2 port but not to a usb 3 port:

Feb 13 16:09:33 odroidm1-2 kernel: usb 3-1: new high-speed USB device number 6 using xhci-hcd
Feb 13 16:09:34 odroidm1-2 kernel: usb usb3-port1: Cannot enable. Maybe the USB cable is bad?
Feb 13 16:09:34 odroidm1-2 kernel: usb 3-1: new full-speed USB device number 7 using xhci-hcd
Feb 13 16:09:34 odroidm1-2 kernel: usb usb3-port1: attempt power cycle
Feb 13 16:09:34 odroidm1-2 kernel: usb 3-1: new high-speed USB device number 8 using xhci-hcd
Feb 13 16:09:34 odroidm1-2 kernel: usb 3-1: Device not responding to setup address.
Feb 13 16:09:34 odroidm1-2 kernel: usb 3-1: Device not responding to setup address.
Feb 13 16:09:35 odroidm1-2 kernel: usb 3-1: device not accepting address 8, error -71

So it looks like jetkvm claims to support usb3 but then fails to connect.

@hi-ko commented on GitHub (Feb 13, 2026): I had a similar issue with an odroidm1, but it was not related to the spitter cable. The jetkvm only connects to a native usb 2 port but *not* to a usb 3 port: ``` Feb 13 16:09:33 odroidm1-2 kernel: usb 3-1: new high-speed USB device number 6 using xhci-hcd Feb 13 16:09:34 odroidm1-2 kernel: usb usb3-port1: Cannot enable. Maybe the USB cable is bad? Feb 13 16:09:34 odroidm1-2 kernel: usb 3-1: new full-speed USB device number 7 using xhci-hcd Feb 13 16:09:34 odroidm1-2 kernel: usb usb3-port1: attempt power cycle Feb 13 16:09:34 odroidm1-2 kernel: usb 3-1: new high-speed USB device number 8 using xhci-hcd Feb 13 16:09:34 odroidm1-2 kernel: usb 3-1: Device not responding to setup address. Feb 13 16:09:34 odroidm1-2 kernel: usb 3-1: Device not responding to setup address. Feb 13 16:09:35 odroidm1-2 kernel: usb 3-1: device not accepting address 8, error -71 ``` So it looks like jetkvm claims to support usb3 but then fails to connect.
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