[iotg][ehl] USB ports not powered on during bootstrap if USB drive is inserted

[Doug Jacobs]

EHL 202105-29104
BIOS: EHLSFWI1.R00.3162.AO1.2104131432
CPU: ElkhartLake ULX ID: 0x90661 Stepping: B0

To install Ubuntu you must boot from a USB drive.

Normally, I insert the USB drive (into the USB-C slot if available), hit F2 to enter BIOS, select Boot Manager and then select the USB drive.

With no USB drive inserted, I can enter the BIOS or Boot Manager as expected.

WITH a USB drive inserted, I cannot. The USB-3 ports where the keyboard is plugged in do not get powered on in time.

Secure Boot and Fast Boot are both disabled in the BIOS.

Steps to reproduce:
1. Plug a USB keyboard into an USB-3 slot (nothing else)
2. Power on the system and hit F2 to enter BIOS.
3. Power off the system.
4. Insert a USB drive (either in USB-3 or USB-C slot)
5. Power on the system and hit F2 to enter BIOS.

Expected results:
You should be able to enter BIOS successfully (steps 2 & 5)

Actual results:
Step 5 will fail - the system will use the Ubuntu bootloader.

Workaround:
Boot the system with no USB drive inserted.
Enter BIOS
Insert USB drive
Go to Boot Manager and select the USB drive to boot.

Reproducibility: 100%

[Kent Lin (kent-jclin)]

This is fixed Intel Corporation: EHLSFWI1.R00.3162.A01.2104131432 (UEFI)

[Doug Jacobs (djacobs98)]

Verified with the 20211013 IOTG Daily Build for Desktop.