Could somebody that is seeing this problem try to boot with kernel flag "iommu=off". Some hardware that used to work with older kernels may be broken and fails to work with modern kernels which default to using IOMMU.
Note that disabling IOMMU is a heavy handed workaround, not a proper fix. For more information about IOMMU, see https://heiko-sieger.info /iommu-groups-what-you-need-to-consider/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749961 Title: xhci_hcd: TRB DMA errors reported with ASMedia ASM1142 USB 3.1 Controller To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749961/+subscriptions -- ubuntu-bugs mailing list email@example.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs