USB 3.1 Gen2 devices only connect at 5Gbps
Environment
- Red Hat Enterprise Linux 7.5
- USB 3.1 Gen2
Issue
lsusb -t
shows USB 3.1 Gen2 devices connecting at 5Gbps instead of 10Gbps
Resolution
This issue is under investigation and we expect to have an update soon.
Root Cause
This is different than the issue documented in USB 3.1 Gen2 speed does not scale beyond 5Gbps because the Root Hub is showing 10000M
for the speed.
Diagnostic Steps
lsusb -t
shows:
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 10000M
|__ Port 1: Dev 4, If 0, Class=Mass Storage, Driver=uas, 5000M
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