The warning messages occurred between "ACPI: EC: interrupt blocked" and "ACPI: EC: interrupt unblocked". Let's try to apply all (17) mainline patches to ACPI EC to Ubuntu-5.4.0-47.51.
If this solves the problems we can then bi-select to identify which patches are the solution and then backport to 5.4 kernel.
The warning messages occurred between "ACPI: EC: interrupt blocked" and "ACPI: EC: interrupt unblocked". Let's try to apply all (17) mainline patches to ACPI EC to Ubuntu-5.4.0-47.51.
If this solves the problems we can then bi-select to identify which patches are the solution and then backport to 5.4 kernel.
The test kernel is available @ https:/ /people. canonical. com/~alexhung/ LP1896482/ and the applied patches are listed in ec_patches.log