Hi CaseySJ
On ACPIDebug log, it seem to work until
"UGIO - TBT forced on" , after we shall have just after
"UGIO - USB forced on" but nothing !
"RTPC NHI0 called with arg: 0000000000000000" is probably called by NHI driver few time later in order to request PowerState ..
First, after viewing iMac19,1 SSDT-TbtOnPch which has TitanRidge 15EA/15EB, many methods like PCED, PCDA, TRPE are very different. I have update testing file (
SSDT-TbtOnPch-Designare_Draft04.aml) and you can test it.
In second time, I have simplified my SSDT-TbtOnPch to the maximum by removing all _PS3, _PS0, PCED and PCDA and ... on Asus Maximus, Thunderbolt device is correctly detected after Cold boot and Hot boot and ... full view of thunderbolt NHI tree appear !
... ICMB, ICMS, CNHI, UPCK and UTLC to WTDL are required for this.
I have creating another file (
SSDT-TbtOnPch-Designare_Simplified_Draft01.aml) to be tested.
About all devices not detected, I don't know, probably due to inappropriate methods from Alpine ridge device or XHC2 RHUB to be modified for Designare board (HSS1, HSS2, SSP1 and SSP2 address and configuration) ...