Hello
@asushi,
Welcome to the forum. Some comments:
- Flashed add-in-cards such as GC-Alpine Ridge do not, in general, work as well as flashed built-in controllers. Nevertheless, flashed add-in-cards do require a warm boot in order to work properly (but not perfectly).
- Regarding DisplayPort via Alpine Ridge, have you connected a DP cable from AMD GPU to one of the DP-IN ports on the GC-Alpine Ridge? And is your monitor a Thunderbolt monitor?
Hey
@CaseySJ Thank u!
why is it the case, that add-in card need a warm boot?
a) is there a way to fix it so, that the machine boots up flawlessly?
to me it looks like this is crash / KP is the result of initial ID, Bus or Port issues, which get magically fixed by doing a warm reboot.
b) are you aware of other, similar reports?
c) would you suggest to try the 2 other flashed DROMS made by
@Elias64Fr? their contents look quite different to DROM 3 and DROM 1+2 correspond to my original firmware:
GC-ALPINE RIDGE-NVM20-V1-Elias64Fr.bin:active:v20:nvm_v20.0:0x4200
GC-ALPINE-RIDGE-NVM20-V2-Elias64Fr.bin:active:v20:nvm_v20.0:0x4200
OriginalFirmware-BlueChip.bin:active:v20:nvm_v20.0:0x4200
GC-ALPINERIDGE-NVM21-V3-NATA.bin:active:v33:nvm_v33.0:0x82200
d) are the modified DROMs based on an original macbook pro TB DROM mixed with a AR DROM?
e) would changing the mac-model or upgrading the system change anything for the better?
f) ...and is it mandatory to bridge the THC pins or should that cable be connected to the mainboard?
regarding the DP port:
Oh i c, i thought that i could use this DP port as general output for my non thunderbolt monitor.
but you are saying that i would need to connect the output of my iGPU to the DP in of the AR and THEN connect an TB output to a TB monitor? is that how it is supposed to work?
thanks again