Created attachment 868888 [details]
dmesg with firmware_class.dyndbg=+p

I noticed my GPU which is Intel HD5500 (part of i5-5200U) hangs for several
seconds and resumes. I am not physically using this laptop recently and I
started to notice the hangs in 6.4.x kernel.

I have the following set for VM "GPU" sharing as kernel parameters. It isn't
very critical ATM and I can disable them if needed.

acpi_osi=! quiet security=apparmor intel_iommu=on firmware_class.dyndbg=+p
i915.enable_gvt=1 kvm.ignore_msrs=1 iommu=pt i915.modeset=1
allow_unsafe_interrupts=1 i915.enable_guc=0 

acpi_osi parameter is required to boot this system, already reported to Linux
kernel