Comment 125 for bug 1752437

Marc Rene Schädler, as per upstream https://bugzilla.kernel.org/show_bug.cgi?id=198715#c97 a patch was merged upstream. Hence, to confirm your issue is resolved upstream, could you please revert any custom patched kernels, and test https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.8/ (no custom patches) and advise to the results?

if resolved, then when Ubuntu 18.10 rebases to kernel 4.19 as per https://launchpad.net/ubuntu/+source/linux you would be able to upgrade for resolution.