Sometimes Ubuntu doesn't connect to my external USB drive

[Johnny Rosenberg]

2011/7/12 NoOp <glgxg at sbcglobal.net>:
> On 07/12/2011 04:37 AM, Johnny Rosenberg wrote:
>> With Ubuntu 10.10 running and the external drive connected to my USB
>> port, I start the drive (”Power On”), but nothing more happens.
>> What can I do to force Ubuntu to connect to the drive, except at least
>> logging out and then login again?
>>
>> This problem does not happen very often, maybe once out of 100 or so,
>> but still I want to know what I can do to manually ”kick-start” the
>> whole thing.
> ...
> Any info in dmesg or /var/log/syslog etc when it happens?

Tried first dmesg:
✁
[56074.628052] usb 1-2: new high speed USB device using ehci_hcd and address 75
[56074.732369] hub 1-0:1.0: unable to enumerate USB device on port 2
[56075.393049] usb 1-2: new high speed USB device using ehci_hcd and address 76
[56075.497234] hub 1-0:1.0: unable to enumerate USB device on port 2
[56076.161050] usb 1-2: new high speed USB device using ehci_hcd and address 77
[56076.265357] hub 1-0:1.0: unable to enumerate USB device on port 2
[56076.925054] usb 1-2: new high speed USB device using ehci_hcd and address 78
[56077.032228] hub 1-0:1.0: unable to enumerate USB device on port 2
[56077.692046] usb 1-2: new high speed USB device using ehci_hcd and address 79
[56077.792222] hub 1-0:1.0: unable to enumerate USB device on port 2
[56078.460051] usb 1-2: new high speed USB device using ehci_hcd and address 80
[56078.565345] hub 1-0:1.0: unable to enumerate USB device on port 2
[56079.221053] usb 1-2: new high speed USB device using ehci_hcd and address 81
[56079.328107] hub 1-0:1.0: unable to enumerate USB device on port 2
[56079.985127] usb 1-2: new high speed USB device using ehci_hcd and address 82
[56080.089343] hub 1-0:1.0: unable to enumerate USB device on port 2

tail /var/log/syslog
Jul 15 01:56:27 EasyNote-MX66 kernel: [56271.893055] usb 1-2: new high
speed USB device using ehci_hcd and address 85
Jul 15 01:56:27 EasyNote-MX66 kernel: [56271.997300] hub 1-0:1.0:
unable to enumerate USB device on port 2
Jul 15 01:56:28 EasyNote-MX66 kernel: [56272.657380] usb 1-2: new high
speed USB device using ehci_hcd and address 86
Jul 15 01:56:28 EasyNote-MX66 kernel: [56272.761294] hub 1-0:1.0:
unable to enumerate USB device on port 2
Jul 15 01:56:29 EasyNote-MX66 kernel: [56273.421058] usb 1-2: new high
speed USB device using ehci_hcd and address 87
Jul 15 01:56:29 EasyNote-MX66 kernel: [56273.525295] hub 1-0:1.0:
unable to enumerate USB device on port 2
Jul 15 01:56:29 EasyNote-MX66 kernel: [56274.184595] usb 1-2: new high
speed USB device using ehci_hcd and address 88
Jul 15 01:56:29 EasyNote-MX66 kernel: [56274.289285] hub 1-0:1.0:
unable to enumerate USB device on port 2
Jul 15 01:56:30 EasyNote-MX66 kernel: [56274.949093] usb 1-2: new high
speed USB device using ehci_hcd and address 89
Jul 15 01:56:30 EasyNote-MX66 kernel: [56275.052409] hub 1-0:1.0:
unable to enumerate USB device on port 2

So it seems like it's at least trying, but failing for some reason…


Kind regards

Johnny Rosenberg
ジョニー・ローゼンバーグ