ERROR: MULTI_HPD_MST is no longer supported

[Ipotex]

Hi folks, 

I have installed Big Sur on CoreI3 Haswell - IGPU 4600  / Asus Z97-USB3.1.  All is working OK but this error on displaypolicyd.0:2:0.log

 

2021-08-31 23:01:26.290577-0300: NOTICE: kAGDCCallbackCapability: 0x0 []
2021-08-31 23:01:26.291274-0300: ERROR: MULTI_HPD_MST is no longer supported
2021-08-31 23:01:36.312142-0300: PolicyEngine started: 7800020000000000, Time: Tue Aug 31 23:01:36 2021
2021-08-31 23:01:36.312333-0300: NOTICE: kAGDCCallbackCapability: 0x0 []
2021-08-31 23:01:36.313163-0300: ERROR: MULTI_HPD_MST is no longer supported
2021-08-31 23:01:46.332101-0300: PolicyEngine started: 7800020000000000, Time: Tue Aug 31 23:01:46 2021
2021-08-31 23:01:46.332283-0300: NOTICE: kAGDCCallbackCapability: 0x0 []
2021-08-31 23:01:46.332769-0300: ERROR: MULTI_HPD_MST is no longer supported
2021-08-31 23:01:56.350734-0300: PolicyEngine started: 7800020000000000, Time: Tue Aug 31 23:01:56 2021
2021-08-31 23:01:56.350903-0300: NOTICE: kAGDCCallbackCapability: 0x0 []
2021-08-31 23:01:56.351491-0300: ERROR: MULTI_HPD_MST is no longer supported
2021-08-31 23:02:06.367985-0300: PolicyEngine started: 7800020000000000, Time: Tue Aug 31 23:02:06 2021
2021-08-31 23:02:06.368135-0300: NOTICE: kAGDCCallbackCapability: 0x0 []
2021-08-31 23:02:06.368711-0300: ERROR: MULTI_HPD_MST is no longer supported
2021-08-31 23:02:16.386358-0300: PolicyEngine started: 7800020000000000, Time: Tue Aug 31 23:02:16 2021
2021-08-31 23:02:16.386543-0300: NOTICE: kAGDCCallbackCapability: 0x0 []
 

Same error every 10 seconds.  Do you have any clue about it? 

I have been looking for it on forums , with no luck! 

 

Thank you!

Ipo. 

 

 

[Ipotex]

Changed from iMac15,1 to iMac14,4 error has gone.