Comment 5 for bug 1779640

Would it be possible for you to test some prior kernels to see if we can bisect this issue down? If so, the following kernels would be a good starting point:

Artful: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/15007007
Early Bionic: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/unstable/+build/13870786