https://bugzilla.kernel.org/show_bug.cgi?id=218943 Mathias Nyman (mathias.nyman@xxxxxxxxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mathias.nyman@linux.intel.c | |om --- Comment #5 from Mathias Nyman (mathias.nyman@xxxxxxxxxxxxxxx) --- Can you check the xhci roothub port speed of connected devices: mount -t debugfs none /sys/kernel/debug/ cat /sys/kernel/debug/usb/xhci/<address of device>/ports/port*/portsc If host uses default speed IDs then PortSpeed 4 is 5Gbps PortSpeed 5 is 10Gbps (Gen2x1) PortSpeed 6 is 10Gbps (2x5Gbps, Gen 1x2) example: cat /sys/kernel/debug/usb/xhci/0000:00:0d.0/ports/port*/portsc 0x0a0002a0 Powered Not-connected Disabled Link:RxDetect PortSpeed:0 Change: Wake: WCE WOE 0x000002a0 Powered Not-connected Disabled Link:RxDetect PortSpeed:0 Change: Wake: 0x000002a0 Powered Not-connected Disabled Link:RxDetect PortSpeed:0 Change: Wake: 0x00001603 Powered Connected Enabled Link:U0 PortSpeed:5 Change: Wake: 0x000002a0 Powered Not-connected Disabled Link:RxDetect PortSpeed:0 Change: Wake: -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
