I am running Ubuntu 20.04 on an XPS15. And everytime I suspend and then come back from it, I get the following messages on the screen before the system actually starts:
ACPI Error: Thread 3824... cannot release Mutex [ECMX] acquired by thread 2383... (20200528/exmutex-378)
ACPI Error: Aborting method \_SB.PCI0.LPCB.ECDV._Q66 due to previous error (AE_AML_NOT_OWNER) 20200528/psparse-529)
i915 0000:00:02.0: [drm] **ERROR** failed to enable link training
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