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The below output from dmesg shows the same thing I see when I ctrl+alt+F1, if is stop lightdm and sometimes if I suspend the machine.

[  615.128020] hub 1-0:1.0: connect-debounce failed, port 2 disabled
[  617.048017] hub 1-0:1.0: connect-debounce failed, port 3 disabled
[  618.968021] hub 1-0:1.0: connect-debounce failed, port 4 disabled
[  620.888022] hub 1-0:1.0: connect-debounce failed, port 5 disabled
[  622.808022] hub 1-0:1.0: connect-debounce failed, port 6 disabled
[  624.728022] hub 1-0:1.0: connect-debounce failed, port 7 disabled
[  626.648019] hub 1-0:1.0: connect-debounce failed, port 8 disabled
[  628.568044] hub 1-0:1.0: connect-debounce failed, port 1 disabled
[  630.488031] hub 1-0:1.0: connect-debounce failed, port 2 disabled
[  632.408026] hub 1-0:1.0: connect-debounce failed, port 3 disabled
[  634.328022] hub 1-0:1.0: connect-debounce failed, port 4 disabled
[  636.248022] hub 1-0:1.0: connect-debounce failed, port 5 disabled
[  638.168026] hub 1-0:1.0: connect-debounce failed, port 6 disabled
[  640.088031] hub 1-0:1.0: connect-debounce failed, port 7 disabled
[  642.008018] hub 1-0:1.0: connect-debounce failed, port 8 disabled
[  643.928025] hub 1-0:1.0: connect-debounce failed, port 1 disabled
[  645.848022] hub 1-0:1.0: connect-debounce failed, port 2 disabled
[  647.768020] hub 1-0:1.0: connect-debounce failed, port 3 disabled
[  649.688029] hub 1-0:1.0: connect-debounce failed, port 4 disabled

Here is the output from lsusb:

Bus 007 Device 002: ID 046d:c315 Logitech, Inc. Classic New Touch Keyboard
Bus 007 Device 003: ID 1532:0009 Razer USA, Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 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

When going into TTY I can alt+F7 back into xfce without any issue, but I can't do anything else.

Note: I KNOW the onboard USB controller is bad. It's REALLY spotty as to whether it will recognize what's plugged in to it. I had to add a PCI controller only a few weeks before rolling over to linux.

Xubuntu 12.10
uname
3.5.0-27-generic #46-Ubuntu SMP Mon Mar 25 19:58:17 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

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1 Answer 1

For anyone still bumping into this it absolutely is the USB controller doing it. I've had it on Ubuntu and Fedora.

Replaced the USB controller and poof, gone.

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