USB 3.0 drive and USB 2.0 hub does not work puzzle

[doug]

So I am trying to use a USB 3.0 drive with a USB 2.0 powered hub. I don't care about the speed I just need the connectivity.

If I plug the Seagate USB 3.0 drive directly into the computer using a USB 2.0 cable it works.

If I put a powered USB 2.0 hub (tried two I have around) inline the LED comes on in the drive case but I don't see the drive show up on the computer.

Any ideas? Are there certain powered USB 2.0 hubs that don't like newer drives?

 

[bbhaag]

Does it show up in disk management but just as unallocated? If it's there maybe try assigning a drive letter to it.

 

[doug]

Thanks of the idea, it is a Linux system but I tried watch dmesg for a while and tried different ports.

For some reason it seems to reset a couple of times but then it started working, yay!

This is what I get when I plug it in directly:
[253337.428074] usb 2-3: new high-speed USB device number 23 using ehci_hcd
[253337.565473] scsi9 : usb-storage 2-3:1.0
[253338.565038] scsi 9:0:0:0: Direct-Access Seagate Expansion 0502 PQ: 0 ANSI: 6
[253338.566512] sd 9:0:0:0: Attached scsi generic sg2 type 0
[253338.573980] sd 9:0:0:0: [sdb] Spinning up disk.....ready
[253340.584720] sd 9:0:0:0: [sdb] 2930277167 512-byte logical blocks: (1.50 TB/1.36 TiB)
[253340.856779] sd 9:0:0:0: [sdb] Write Protect is off
[253340.856785] sd 9:0:0:0: [sdb] Mode Sense: 4f 00 00 00
[253340.857608] sd 9:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[253340.874729] sdb: sdb1
[253340.887227] sd 9:0:0:0: [sdb] Attached SCSI disk


USB hub being plugged in:
[254399.936284] usb 7-1: new full-speed USB device number 66 using uhci_hcd
[254400.104401] hub 7-1:1.0: USB hub found
[254400.106293] hub 7-1:1.0: 7 ports detected

Finally the drive itself into the USB HUB:
[254446.518305] usb 7-1.1: new full-speed USB device number 67 using uhci_hcd
[254446.696082] usb 7-1.1: not running at top speed; connect to a high speed hub
[254446.736416] scsi12 : usb-storage 7-1.1:1.0
[254447.741119] scsi 12:0:0:0: Direct-Access Seagate Expansion 0502 PQ: 0 ANSI: 6
[254447.742148] sd 12:0:0:0: Attached scsi generic sg2 type 0
[254447.762138] sd 12:0:0:0: [sdb] Spinning up disk.....ready
[254449.798143] sd 12:0:0:0: [sdb] 2930277167 512-byte logical blocks: (1.50 TB/1.36 TiB)
[254450.036181] sd 12:0:0:0: [sdb] Write Protect is off
[254450.036192] sd 12:0:0:0: [sdb] Mode Sense: 4f 00 00 00
[254450.039168] sd 12:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[254480.910077] usb 7-1.1: reset full-speed USB device number 67 using uhci_hcd
[254481.809128] sdb: sdb1
[254481.841127] sd 12:0:0:0: [sdb] Attached SCSI disk
[254513.961092] usb 7-1.1: reset full-speed USB device number 67 using uhci_hcd


Maybe this is a USB high-speed vs full-speed issue.

 

[mfenn]

Can you post the output of

lsusb -t

in the three scenarios above?