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Gigabyte Z490 Vision D (Thunderbolt 3) + i5-10400 + AMD RX 580

I am about to pull the trigger on a build based on the Z490 Vision D.
I have a couple of questions.

Will I be able to use both HDMI and both Displayports simultaneously on the Sapphire Pulse Radeon RX 580 for outputting to 4 displays? Main display will be either 3440x1440 or 4k. The three other displays will be 1980x1020.

I plan to run midi over Ethernet directly connected to a Linux box. Are both Ethernet ports supported simultaneously?
 
I tried to update OpenCore to 0.61
and found cannot boot successfully from USB flash drive's EFI
it display
"OCB: Startimage failed-Already started
halting on critical error"

Later, I copied the EFI in the SSD to the USB
and the problem was the same and it could not be booted.

The problem now is that the USB flash drive's EFI cannot boot at all
even the EFI is OK before
i test 3 USB flash drive and problem is the same
 
badch said:
I tried to update OpenCore to 0.61
and found cannot boot successfully from USB flash drive's EFI
it display
"OCB: Startimage failed-Already started
halting on critical error"

Later, I copied the EFI in the SSD to the USB
and the problem was the same and it could not be booted.

The problem now is that the USB flash drive's EFI cannot boot at all
even the EFI is OK before
i test 3 USB flash drive and problem is the same
Click to expand...
Whenever we encounter something like this where a previously bootable EFI fails to boot, the immediate reaction should be:
  • Perform cold boot
  • Perform CMOS Reset (by shorting two pins on motherboard with flat head screwdriver); then configure BIOS parameters
Some questions:
  • Do you also have Windows installed?
  • If so, is Windows installed on its own dedicated SSD?
 
ThomasVJ said:
I am about to pull the trigger on a build based on the Z490 Vision D.
I have a couple of questions.

Will I be able to use both HDMI and both Displayports simultaneously on the Sapphire Pulse Radeon RX 580 for outputting to 4 displays? Main display will be either 3440x1440 or 4k. The three other displays will be 1980x1020.

I plan to run midi over Ethernet directly connected to a Linux box. Are both Ethernet ports supported simultaneously?
Click to expand...
Both Ethernet ports are supported simultaneously in MacOS, Linux, and Windows.

Regarding 4 monitors, that is the question we cannot answer until we try. I put the chances of success at less than 20%, however. Yes, less than 20% chance that 4 monitors will work -- and even if they do, you may run into various problems with sleep and wake. Some of those problems could (not 'will') be solved by disabling WhateverGreen.

It is for this reason that the build guide in Post #1 has always had this statement:

Screen Shot 2020-09-08 at 7.16.38 AM.png
 
CaseySJ said:
Whenever we encounter something like this where a previously bootable EFI fails to boot, the immediate reaction should be:
  • Perform cold boot
  • Perform CMOS Reset (by shorting two pins on motherboard with flat head screwdriver); then configure BIOS parameters
Some questions:
  • Do you also have Windows installed?
  • If so, is Windows installed on its own dedicated SSD?
Click to expand...
I performed CMOS Reset, and it's the same.
I have Windows installed on its own dedicated SSD.
 
badch said:
I performed CMOS Reset, and it's the same.
I have Windows installed on its own dedicated SSD.
Click to expand...

Run the debug version of opencore and log the boot process to disk.
 
badch said:
I performed CMOS Reset, and it's the same.
I have Windows installed on its own dedicated SSD.
Click to expand...
Please try this:
  • Disconnect the Windows SSD and perform a cold boot.
  • Does the problem disappear?
  • If not, then:
    • Insert the USB flash disk on another Mac or Hack
    • Mount the EFI partition of the USB flash disk
    • Inside the EFI folder, what sub-folders do you see?
      • Do you see BOOT?
      • Do you see OC?
      • Do you see any other folders?
Also feel free to compress and upload the entire EFI folder from the USB flash disk. I can see whether the same problem occurs on my system.
 
canyondust said:
Do we suspect that intel power gadget isn't reporting values correctly on Comet Lake? I ask because I can only seem to get the iGPU / GFX AVG to about 0.15Ghz under load, but I suspect it might be doing more than that.
Thoughts?
Click to expand...
Do you have the parameter igfxfw=2 in Boot Arguments?
 
emistral said:
@CaseySJ Looking at your new 0.6.1 EFI that you have added on the first page. what is the SBUS-MCHC? I don't have it in my ACPI list. was it is 0.6.0?
Also in my EFI 0.6.0 I have UIAC VISION D V1 enable attribute set to Yes but in your config.plist, this attribute is set to No. shouldn't it be set to Yes?
Also I have noticed that I am using the smalltree kext but I can't remember why. looking on the net, I can't find any hints that would explain the reason why I am using this kext.
Click to expand...
To answer your questions:
  • SSDT-SBUS-MCHC is not strictly necessary, but it fixes SMBus support in macOS.
  • SSDT-UIAC-VISION-D-V2 is explained in Post #1:
    1599586577103.png
  • SmallTreeIntel kext enables the Intel i211 Gigabit Ethernet port. The other Ethernet port (Intel i225) is supported by macOS itself.
 
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