So it looks like other than the internal devices that count towards this xHCI max limit of 32 (what are they? Audio? Bluetooth? Can they be disabled to free up space), the 16 port USB3 hub itself is probably daisy chained internally and takes up spots as well. I've read that by switching to the eHCI driver I would not be limited to this 32 but I would downgrade to USB2 speed instead, which I could live with. So if this limit of 32 on xHCI just cannot be solved with the 1 USB controller onboard and the xHCI driver, is there a workaround to load the eHCI driver instead?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1928710 Title: ubuntu server 20.04 LTS for ARM64 on Raspberry Pi4 could not handle more than 32 USB3 devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1928710/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
