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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1945211
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Changed in: linux (Ubuntu Focal)
Status: New => Incomplete
** Changed in: linux (Ubuntu Hirsute)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1945211
Title:
Fix cold plugged USB device on certain PCIe USB cards
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Focal:
Incomplete
Status in linux source package in Hirsute:
Incomplete
Bug description:
[SRU Justification]
[Impact]
Cold plugged USB device was not detected on certain PCIe USB cards
(like Inateck card connected to AM64 EVM or connected to J7200 EVM).
And also the root hub mentioned in https://bugs.launchpad.net/bugs/1939638.
Re-plugging the USB device always gets it enumerated.
[Fix]
Register both root hubs along with the secondary hcd for xhci.
[Test Case]
1. Plug the USB device to the ports of problematic root hub.
2. Power on the machine.
3. Check if the USB device can work or not after boot.
[Regression Potential]
Low. It simply make sure both primary and secondary roothubs are registered
along with the second HCD.
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