Since the upgrade to Linux 4.15 (and also in 4.16), I'm experiencing an
issue where all my USB devices just die seemingly without any cause.
Both my laptop's internal (attached) keyboard as well as my external
keyboard die.
Replugging the external keyboard unfortunately does not solve the
problem. My touchpad, on the other hand, continues to work, though it
may internally be connected via PS/2.
After this happens, I have only been able to solve it by rebooting.
In the logs, the following error can be found.
xhci_hcd 0000:3d:00.0: xHCI host controller not responding, assume dead
Previously, similar issues occurred to users that could be fixed by
adding intel_iommu=false to the kernel parameters. This however seems
to be a different problem, as it newly occurs in this specific kernel
version and is not solved by the aforementioned solution.
This was also posted at the Archlinux forums [1], where we managed to
pin down the issue to being related to xHCI and autosuspend (power
management). I'm using powertop's --auto-tune and disabling the "good"
setting for all xHCI controllers again makes the issue disappear. Linux
4.14 and lower also do not expose this issue.
Please also find attached the complete journalctl output of one boot
from start to finish that exposed the issue, which may be helpful
during debugging. [1]
Posted to this mailing list as requested by Greg Kroah-Hartman.
Apologies for not doing this sooner, but all the archive links on the
site were dead for me, so I assumed (wrongly) that it was no longer
used.
Thanks!
Architecture: x86-64
Kernel Version: 4.16.8
Bugzilla link: [2]
[1] https://bugzilla.kernel.org/attachment.cgi?id=275907
[2] https://bugzilla.kernel.org/show_bug.cgi?id=199681
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