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LG UltraFine 5K Build

Got RX580 to test 5K resolution, but no luck.

I've removed nvidia nvidia card and put RX580 to the top PCI-E slot and now cannot boot macOS. OpenCore shows an error right after the boot volume is selected:

[EB|`B:WFDW] Err(0xE), 0 @ LocHB 71B4903C-14EC-42C4-BDC6-CE1449930E49

That's a common error, needs to be investigated first. It could be related to graphics card, but I don't understand the problem here especially when you have the only card. At the same time it works with two cards :banghead:.

Also I've seen ACPI table errors, so maybe I don't get 5K because of these errors. I'll try to fix them first. Then maybe flash back to original FW.

Walls of text ahead =))
 
I've got 5K res finally and all internal devices working both in Catalina and Windows. The best setup for UltraFine 5K (B-version) is the following:

- ASUS Z490-E Strix
- GC-TITAN RIDGE 2.0 with original firmware and bridged pins (does not matter)
- RX580 with two display ports connected to GC-TITAN RIDGE
- "adgpmod=pikera slide=1" boot args
- SSDT-DTPG.aml + SSDT for ASUS 3-TR (yes, for ASUS, not GC) from this post.

No need to activate (i. e. flashing custom firmware) TB Bus.

You can have a black screen until it boots to Catalina, so I use iGPU and a TV connected to it to see boot screens. The problem has to be investigated further and I will post an update about it.

The results for ASUS ThunderboltEX 3-TR will be posted later.
 
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etc said:
I've got 5K res finally and all internal devices working both in Catalina and Windows. The best setup for UltraFine 5K (B-version) is the following:

- ASUS Z490-E Strix
- GC-TITAN RIDGE 2.0 with original firmware and bridged pins
- RX580 with two display ports connected to GC-TITAN RIDGE
- "adgpmod=pikera slide=1" boot args
- SSDT-DTPG.aml + SSDT for ASUS 3-TR (yes, for ASUS, not GC) from this post.

No need to activate (i. e. flashing custom firmware) TB Bus.

You can have a black screen until it boots to Catalina, so I use iGPU and a TV connected to it to see boot screens. The problem have to be investigated further and I will post an update about it.

The results for ASUS ThunderboltEX 3-TR will be posted later.
Click to expand...
Glad you got it working I knew it was possible.
 
Build 1 Titan Ridge TB3
Z370 AORUS Gaming 5 |  i9 9900K |  RX 6900 XT (16 GB)
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I'm using Asus X299 motherboard + Gigabyte Titan Ridge and have a problem with cold boot monitor turning on. (I need to re-plug Thunderbolt connector each time system boots in order to turn on monitor.) I've tried Gigabyte Titan Ridge 1.0 and 2.0 - but results are the same .(I've flashed them with Apple-compatible firmware but this have not helped.)

Today I've tried Asus ThunderboltEX 3 (old card without 5K support) - and it worked fine - monitor turned on without replugging (but do not buy old ThunderboltEX 3 - it doesn't support 5K resolution). Seems that ASUS BIOS not fully compatible with Gigabyte's Thunderbolt cards - it does some things during initialization that makes my LG 5K hang/freeze.
 
etc said:
Using ch341a programmer
Click to expand...

I've found only one Winbond chip on 3-TR PCB. I've connected my ch341a programmer (which I've successfully used to program Gigabyte's Titan Ridge card), but it didn't see this chip. :(
 
wladdych said:
I've found only one Winbond chip on 3-TR PCB. I've connected my ch341a programmer (which I've successfully used to program Gigabyte's Titan Ridge card), but it didn't see this chip.
:(
Click to expand...
I have both Titan Ridge and 3-TR. and the programmer reads them both. But, at first I modified it to use 3.3v intead of 5. Check the wiring and connections, also check that your programmer works at 3.3v.
 
etc said:
I have both Titan Ridge and 3-TR and the programmer reads them both, but at first I modified it to use 3.3v intead of 5. Check the wiring and connections, also check that your programmer works at 3.3v.
Click to expand...
My programmer works at 3.3v.
But at Gigabyte's PCB, I see two Winbond chips.
On Asus only one which is strange.

Your 3-tr have two Winbond chips as in Gigabyte's Titan Ridge?
 
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