More system info check this post below.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805097
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Tags added: kernel-bug-exists-upstream
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You received this bug notification because you are a member of Ubuntu
Bugs,
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
v4.20
