The error only occurs in event viewer and doesn't seem to have any impact on general usage. Not yet anyway, I guess. Windows 10, R9 390X. The error I get is:
The description for Event ID 0 from source amdacpusrsvc cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
acpusrsvc: IOCTL_ACPKSD_KSD_TO_USR_SVC_SET_FB_APERTURES: FAILED
This only occurs when I start the computer, not any other time so far.