I appreciate your patience with me. This seems to not be an easy one. When you say the computer is not being used, do you mean it is in Sleep or Hibernation? It is naming you graphics card/or drivers. The device is a pcie device. Do you have any other pci/pcie devices installed?
If you would, please run Furmark, but make sure you watch the temps closely and stop the test if they get too high. Temps will rise rapidly and very high. After a few minutes they will level off. Let it run, if temps are not too high, until the temps level off. Watch for artifacts while the test is running.
!devobj ffffe000632ca060Device object (ffffe000632ca060) is for:
Cannot read info offset from nt!ObpInfoMaskToOffset
\Driver\pci DriverObject ffffe0006328a060
Current Irp 00000000 RefCount 0 Type 00000023 Flags 00001040
DevExt ffffe000632ca1b0 DevObjExt ffffe000632ca7a8 DevNode ffffe000632cb4f0
Characteristics (0x00000100) FILE_DEVICE_SECURE_OPEN
AttachedDevice (Upper) ffffe000632cc3b0 \Driver\ACPI
After that I would like you to remove all wireless devices and any cards or dongles you use and see if that improves things any.