Update to this version and apparently everything is fine
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.16.7/
** Changed in: linux (Ubuntu)
Status: Expired => Fix Released
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[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1755055
Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.16
