This is a long standing acpi errors logged (since kernel 3 family) kernel: ACPI Error: [\_SB_.PCI0.XHC_.RHUB.HS11] Namespace lookup failure, AE_NOT_FOUND (20170831/dswload-210) kernel: ACPI Exception: AE_NOT_FOUND, During name lookup/catalog (20170831/psobject-252) kernel: ACPI Exception: AE_NOT_FOUND, (SSDT:xh_rvp08) while loading table (20170831/tbxfload-228) kernel: ACPI Error: 1 table load failures, 5 successful (20170831/tbxfload-246) Previously reported on launchpad: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748487
Looks like a patch have been tested: https://github.com/torvalds/linux/blob/eceeae414edccb07fad683011c0c65abe8a3a554/include/acpi/acpixf.h#L195 but, because of some problem, have been reverted to: commit 00c611def8748a0a1cf1d31842e49b42dfdb3de1
Hi Sorry for the delayed response. I believe this issue has been resolved. Please try this branch here: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/?h=linux-next
Code to fix this issue is available. Closing