DIY 5k Monitor - success :-)

[kylix7]

finished

 

[kylix7]

For the project was used the housing of the imac 2012, LCD LM270QQ1 SDE1 IMAC 2019 And drive board R1811 5K model.

 

[runtime_error0x]

You can attach zip file.
Output that might include bpp or bpc is missing.
Make sure the command is:
/System/Library/Extensions/AppleGraphicsControl.kext/Contents/MacOS/AGDCDiagnose -a > AGDCDiagnose_a.txt 2>&1
You have AGDCDiagnose Version: 4.7.2.2 but I am expected AGDCDiagnose Version: 5.2.6.6 from Catalina 10.15.7.
You are running an old version of macOS Catalina? Update macOS.

I use my script from https://gist.github.com/joevt/32e5efffe3459958759fb702579b9529 to examine the output.

cd /Volumes/Updates/Docs/Video/DVI_EDID_DDC_stuff/EDIDs/EDID\ from\ runtime_error0x
source ../Scripts/EDIDUtil.sh

loadagdcfile AGDCDiagnose_a.txt
agdcdevicedump AGDCDiagnose_a.txt > AGDCDiagnosedump.txt
decodeall
dumpedidall
edidbinall
useedidnum 1
listedids

1)
vendor:1552 (APP) product:41028
override product name:DisplayVendorID-610/DisplayProductID-a044
override date name:DisplayVendorID-610/DisplayYearManufacture-2019-DisplayWeekManufacture-36
strings:Color LCD LP160WT1-SJA2 F0Y939101HRLP0J72  
theedid=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
sources:
AGDCDiagnose_a.txt:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/PEG0@1/IOPP/EGP0@0/IOPP/EGP1@0/IOPP/GFX0@0/AMDRadeonX6000_AmdAgdcServices/AppleGraphicsDevicePolicy/AGDPClientControl/Port 1
/System/Library/Displays/Contents/Resources/Overrides/DisplayVendorID-610/DisplayProductID-a044:edid-patches of (1)

2)
vendor:3353 (CHY) product:12819
override product name:DisplayVendorID-d19/DisplayProductID-3213
override date name:DisplayVendorID-d19/DisplayYearManufacture-2020-DisplayWeekManufacture-15
strings:G(x;r% DP 5K3K              ]^_`a# )P0 5
theedid=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
sources:
AGDCDiagnose_a.txt:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/PEG0@1/IOPP/EGP0@0/IOPP/EGP1@0/IOPP/GFX0@0/AMDRadeonX6000_AmdAgdcServices/AppleGraphicsDevicePolicy/AGDPClientControl/Port 4

translateoui 000-016-250
translateoui 000-224-076

oui: 0x0010FA = Apple, Inc.
oui: 0x00E04C = REALTEK SEMICONDUCTOR CORP.

ls -l
total 136
-rw-r--r--@ 1 joevt  staff  28200 Oct 10 14:29 AGDCDiagnose_a.txt
-rw-r--r--  1 joevt  staff      0 Oct 10 14:29 AGDCDiagnosedump.txt
-rw-r--r--@ 1 joevt  staff   8249 Sep 24 11:09 EDID.worksheet
-rw-r--r--  1 joevt  staff    256 Oct 10 14:29 EDID_APP_610_a044_1.bin
-rw-r--r--  1 joevt  staff    954 Oct 10 14:29 EDID_APP_610_a044_1_dumpedid.txt
-rw-r--r--  1 joevt  staff   2529 Oct 10 14:29 EDID_APP_610_a044_1_edid-decode.txt
-rw-r--r--  1 joevt  staff    384 Oct 10 14:29 EDID_CHY_d19_3213_2.bin
-rw-r--r--  1 joevt  staff   2301 Oct 10 14:29 EDID_CHY_d19_3213_2_dumpedid.txt
-rw-r--r--  1 joevt  staff   7619 Oct 10 14:29 EDID_CHY_d19_3213_2_edid-decode.txt

Connection 1 is MacBook Pro built-in display (3072x1920) (connected with 4 lanes of HBR2)
Connection 4 is the 5120x2880 display (connected with 4 lanes of HBR3 so it will be limited to 8bpc) - but it says it supports DSC! and DSC is enabled! But the display is only 5K so HBR2 with DSC should be sufficient so why is it using HBR3? Maybe to reduce compression ratio for better results? With DSC, a higher bpc should be allowed. The EDID says 10 bpc is supported (also YCbCr 4:4:4, 4:2:2, 4:2:0, AMD free sync?, HDR). If DSC is required then it means it only works with Macs with Navi GPUs (5300, 5500, 5600, 5700 etc.).

So try again with the suggested command after update of Catalina to see if you can get more info from the command.

Connection 4 has OUI from REALTEK SEMICONDUCTOR CORP. Are they the maker of the DisplayPort controller?

Is there a hub between the display and the GPU? Does the controller board have a MST hub built-in? In Windows, the Intel Graphics Control Panel has an option to show MST topology. Maybe Linux can show MST topology too? (in either case, the display would need to be connected to the iGPU).

@joevt
I updated to Big Sur and tried these out again. To me it seems it does detect the DSC but don't think it's using it. With the latest version it shows 8bpc for the native 5k display. Three files attached: "AGDCDiagnose_a" is with DSC on monitor turned on, "AGDCDiagnose_a2" is with it turned off. Those are being used over a single type c cable from the hub. The third "AGDCDiagnose_a3" is using a dual DisplayPort to 1 usb c and now it's showing as 10bpc. I also have a regular 4k monitor attached in these logs.

In the old logs with Catalina it had showed "Reg: 000160: 01 : DSC Enable: 0x1" but now it seems it's not enabled when using over 1 usb type c cable, very strange.

So it looks like if I just want to use one cable I can get 5k but only at 8bpc. If I want the full 10bpc I can just connect using the adapter using the two DisplayPort ports on the hub.

might be Big Sur? https://egpu.io/forums/mac-setup/4k144hz-no-longer-available-after-upgrade-to-big-sur/

 

[joevt]

@joevt
I updated to Big Sur and tried these out again. To me it seems it does detect the DSC but don't think it's using it. With the latest version it shows 8bpc for the native 5k display. Three files attached: "AGDCDiagnose_a" is with DSC on monitor turned on, "AGDCDiagnose_a2" is with it turned off. Those are being used over a single type c cable from the hub. The third "AGDCDiagnose_a3" is using a dual DisplayPort to 1 usb c and now it's showing as 10bpc. I also have a regular 4k monitor attached in these logs.

In the old logs with Catalina it had showed "Reg: 000160: 01 : DSC Enable: 0x1" but now it seems it's not enabled when using over 1 usb type c cable, very strange.

So it looks like if I just want to use one cable I can get 5k but only at 8bpc. If I want the full 10bpc I can just connect using the adapter using the two DisplayPort ports on the hub.

might be Big Sur? https://egpu.io/forums/mac-setup/4k144hz-no-longer-available-after-upgrade-to-big-sur/

Yes, it appears that DSC is broken in Big Sur. Send feedback to Apple.

 

[cdf]

This is a very nice project.

Regarding 5K displays and the classic Mac Pro: while it's possible to use the LG UltraFine 5K with the C-TITAN RIDGE card, every cold boot apparently requires a minimum of fiddling to get the display to turn on. @fiatlux, you mentioned that you had a 2009 Mac Pro with an RX 580. Does the DIY solution work nicely with that machine? At 5K? Do you know if the monitor shows the bootscreen with OpenCore? Any clarifications would be appreciated!

 

[Seanmitc]

Photo #1: K&M 19615 attached to the enclosure without padding. The cables in the photo are for the iMac speakers, connected to the 5K driver board via a 4-pin header.
View attachment 967907

Interesting that you were able to get the iMac speakers to work with the controller. Are the microphone and FaceTime camera also able to connect?

 

[Seanmitc]

@joevt
I updated to Big Sur and tried these out again. To me it seems it does detect the DSC but don't think it's using it. With the latest version it shows 8bpc for the native 5k display. Three files attached: "AGDCDiagnose_a" is with DSC on monitor turned on, "AGDCDiagnose_a2" is with it turned off. Those are being used over a single type c cable from the hub. The third "AGDCDiagnose_a3" is using a dual DisplayPort to 1 usb c and now it's showing as 10bpc. I also have a regular 4k monitor attached in these logs.

In the old logs with Catalina it had showed "Reg: 000160: 01 : DSC Enable: 0x1" but now it seems it's not enabled when using over 1 usb type c cable, very strange.

So it looks like if I just want to use one cable I can get 5k but only at 8bpc. If I want the full 10bpc I can just connect using the adapter using the two DisplayPort ports on the hub.

might be Big Sur? https://egpu.io/forums/mac-setup/4k144hz-no-longer-available-after-upgrade-to-big-sur/

Unless this is fixed, I might be motivated to just used the older controller (cheaper) with a usb c hub if the usb c input won't work properly on the newer controller.

 

[runtime_error0x]

Unless this is fixed, I might be motivated to just used the older controller (cheaper) with a usb c hub if the usb c input won't work properly on the newer controller.

agreed, however the new controller works great for my PC over one DisplayPort cable so it worked well for all my use cases

 

[fiatlux]

agreed, however the new controller works great for my PC over one DisplayPort cable so it worked well for all my use cases

Indeed, but note that I have not been able to make the new controller work in 5K over two DP cables with an older machine not supporting DP 1.4, so it is unfortunately not as universal as one might think...

 

[fiatlux]

@fiatlux, you mentioned that you had a 2009 Mac Pro with an RX 580. Does the DIY solution work nicely with that machine? At 5K? Do you know if the monitor shows the bootscreen with OpenCore? Any clarifications would be appreciated!

I have only tested the 5K display on my MP2013 with an eGPU and a RX580 or Vega 56, but there is no reason why the same cards would not work in 5K in a 2009 Mac Pro -or in a PC-. I think Displayport 1.4 was already supported in the RX480 by the way.

 

[cdf]

I have only tested the 5K display on my MP2013 with an eGPU and a RX580 or Vega 56, but there is no reason why the same cards would not work in 5K in a 2009 Mac Pro -or in a PC-. I think Displayport 1.4 was already supported in the RX480 by the way.

Nice. I'm quite curious about whether the OpenCore boot picker will show with DP 1.4 or with dual DP (I believe there is a different version of the R1811 firmware to enable dual DP). If ever you want to try OC on your cMP and need any help, let me know!

 

[fiatlux]

Nice. I'm quite curious about whether the OpenCore boot picker will show with DP 1.4 or with dual DP (I believe there is a different version of the R1811 firmware to enable dual DP). If ever you want to try OC on your cMP and need any help, let me know!

As far as I understand the boot picker will use a standard VESA mode at a lowish resolution so I am not sure whether DP1.4 will matter.

Interesting to know that a different f/w is available for the R1811 although I'm not sure I want to reopen the display cabinet (those pesky screen adhesives) to test it out (I elected to only have one DP, one HDMI and one USB-C cable connected to limit the mess).

Regarding the cMP, I may have to test it one day. I shelved it, tired of going through hoops to make it Catalina-friendly but my 2nd hand MP2013 has been my most frustrating Apple experience so far. When it runs, it does so beautifully (12 cores and 64GB of RAM), and sometimes for weeks, but other times it would randomly loose all USB, slow down or crash with memory/CPU problems, and sometimes not run for 5 minutes. I have replaced/swapped all memory modules to no avail. Only thing I have not done yet it to do a complete disassembly/reassembly with possibly a CPU replacement (more €!) but this is not an insignificant nor failsafe exercise.

Being a bit fed up spending more time fixing/maintaining my computer than actually using it, I might even go for a Mac Mini with an Apple Silicon as a temporary solution. Question is, will it support a DP1.4 link through one of its Thunderbolt 3 ports?

 

[runtime_error0x]

Indeed, but note that I have not been able to make the new controller work in 5K over two DP cables with an older machine not supporting DP 1.4, so it is unfortunately not as universal as one might think...

Nice. I'm quite curious about whether the OpenCore boot picker will show with DP 1.4 or with dual DP (I believe there is a different version of the R1811 firmware to enable dual DP). If ever you want to try OC on your cMP and need any help, let me know!

Yeah I had to flash a new firmware to allow an input with Dual DP. Been working well so far.

As far as I understand the boot picker will use a standard VESA mode at a lowish resolution so I am not sure whether DP1.4 will matter.

Interesting to know that a different f/w is available for the R1811 although I'm not sure I want to reopen the display cabinet (those pesky screen adhesives) to test it out (I elected to only have one DP, one HDMI and one USB-C cable connected to limit the mess).

Regarding the cMP, I may have to test it one day. I shelved it, tired of going through hoops to make it Catalina-friendly but my 2nd hand MP2013 has been my most frustrating Apple experience so far. When it runs, it does so beautifully (12 cores and 64GB of RAM), and sometimes for weeks, but other times it would randomly loose all USB, slow down or crash with memory/CPU problems, and sometimes not run for 5 minutes. I have replaced/swapped all memory modules to no avail. Only thing I have not done yet it to do a complete disassembly/reassembly with possibly a CPU replacement (more €!) but this is not an insignificant nor failsafe exercise.

Being a bit fed up spending more time fixing/maintaining my computer than actually using it, I might even go for a Mac Mini with an Apple Silicon as a temporary solution. Question is, will it support a DP1.4 link through one of its Thunderbolt 3 ports?

It should work on the new Mac mini, except it might be in 5k 8bit color mode since DSC has been broken in Big Sur. Unless it somehow works in the ARM version

 

[fiatlux]

Yeah I had to flash a new firmware to allow an input with Dual DP. Been working well so far.

Any info as to where to find that new fw?

 

[runtime_error0x]

Any info as to where to find that new fw?

Not sure where you bought it from but the seller gave it to me, just had to ask if there was a different image with the dual DP input

 

[magicseaweed]

For the project was used the housing of the imac 2012, LCD LM270QQ1 SDE1 IMAC 2019 And drive board R1811 5K model.

Great stuff! I'm planning on getting the same components as you, however, I'm wondering how the LM270QQ1 SDE1 is with an A1419 housing. The SDE1 panel is for the A2115 housing. Can you confirm that the panel are same in size? Looks fit from the pictures, but I gotta be sure

 

[magicseaweed]

My "latest Macs" are a heavily upgraded 2009 Mac Pro (6c CPU, M.2 SSD, USB 3, RX580...) and more recently a 12c 2013 Mac Pro with an eGPU (Vega 56) - both machines with more than enough CPU power, GPU power and RAM for my needs, but I long aspired to upgrade to a nice 5k monitor to replace my aging 30" WQHD monitor which only took dual-link DVI inputs (requiring clunky and expensive adapter on the MP tube).

The LG 5k Ultrafine monitors are relatively pricey and limited to TB3 (and USB-C) inputs so, no really an option for my equipment.

Dell, HP and Philips all used to offer 5k displays which took two DP 1.2 inputs to run at 5k, but they were all quickly discontinued and don't have the best reliability reputation (does the latter explain the former?).

The last option was Iiyama's 5k which appeared to share the same LG Display panel as the iMac and LG monitors and supported 5k with a single DP1.4 input, but with electronics limiting color to 6 bit+FRC and with poor color accuracy reviews. It has recently been EOL'd.

I was about to give up when I started reading reports on DIY 5k monitors made from spare parts sourced from the Internet. I was intrigued and gave it a go. I should warn you that this is a risky enterprise and that you need a bit a faith (you need to source parts from questionable sources without much if any warranty). It also won't be a dirt cheap option - likely much cheaper than a new LG monitor, but still not dirt cheap.

Here is what you need as a minimum:

1. A 5k panel - there are only two commonly available such panels: the LG Display LM270QQ1 (the one used in 5k iMac) and LM270QQ2 (used in LG Ultrafines). Essentially the same panel in a slightly different delivery - the iMac version coming glued to a shiny glass front the exact same shape as the iMac screen, the other being a plain rectangular panel (semi-matt from the look of the photos).
2. A 5k driving board - again there seems to be essentially two versions of such board: the R9A18 board which has 2 HDMI 2.0 and 2 DP 1.2 inputs (requiring two DP 1.2 cables to run at 5k/60Hz), and the more expensive R1811 board which as 2 HDMI 2.0, 2 DP 1.4 (one being enough for 5k/60Hz) and 1 USB-C input (with 65W PD). Both boards come with all the necessary panel cables and power supply, but you will have to specify which panel to match.

Both the panel and the board are typically found on aliexpress and eBay. I sourced my panel (an iMac LM270QQ1) from a local eBay reseller to avoid taxes and customs charges, but had to order the board from aliexpress as I specifically wanted the newer and less common R1811 allowing the use of a single DP1.4.

Connecting the two isn't difficult (you have to be careful with those flat cables and thin connectors) and is enough to have a working 5K monitor but, without a proper enclosure, the screen isn't terribly rigid and the whole setup a mess with exposed electronics.

From there you have plenty of options I guess, depending on you DIY skills, but I elected to go for a nice and tidy look, and an option not requiring too much messing around with tools. Having bought an iMac panel, the easiest is to purchase an empty 27" iMac housing - the A1419 version for which the LM270QQ1 is designed to be the "drop-in" replacement screen. The housing is large enough to host the driver board (and even the power adapter if you want). You will have to make sure the display and power cables are correctly connected and routed to the outside (most likely through the memory access panel) before you attach the screen with those pesky sticky strips.

Sourcing a new 27" iMac housing spare part is probably not going to be easy, or affordable, but used parts can often be found on eBay - in various conditions but much cheaper. Note that most often than not the housing will come without a stand, which means another challenge to address.

I wanted to be able to control height and tilt of the monitor anyway, so I pursued the VESA mount option. As you may know, the A1419 does not offer any official solution to install a VESA mount if that option was not selected at purchase time, but it turns out that you can easily remove the original stand hinge mechanism (at least when you have an empty housing), use a A1312 stand hinge mechanism instead and then install the Apple VESA kit which was designed for the older 24"and 27" iMacs and Thunderbolt displays (there are third-party options).

So, in addition to the above panel and board, here is what I needed to get a 5k monitor looking like a VESA-mounted iMac:

1. An A1419 iMac empty housing
2. An A1312 hinge mechanism
3. An Apple VESA Mount adapter

I am quite glad with the end result which looks much better than I feared (but cost a bit more than I hoped as well). I will post pictures once I clean up my desk ;-)

5K/60Hz/10 bit works without any problem on a single DP 1.4 cable with the RX580 or Vega 56, the 4K/30Hz/8 bit over HDMI looks surprisingly nice and crisp (150% size in Windows, similar scaling in macOS), not tested USB-C yet. Colors look very nice, the control board on-screen menu offers the options of native/sRGB/AdobeRGB/P3 color spaces, but I have yet to measure and profile the monitor.

Do not hesitate to ask any question!

Thanks for making this post, I'm currently in the same boat as you were!

You mentioned some cons on reliability for existing 5k displays, how is your experience so far? Is there any asynchronicity when running dual DP 1.2?

 

[yaosiang]

Interesting that you were able to get the iMac speakers to work with the controller. Are the microphone and FaceTime camera also able to connect?

Yes the built-in speakers are nice to have and you can get them from eBay at very good price. Audio is transmitted via DisplayPort/HDMI cable so no additional 3.5mm cable required. All you have to do is to connect the wires of the speakers to the 4-pin header on the LCD driver board (Left+, Left-, Right+ and Right-) using the right connector. I have seen other similar projects where separate audio amplifiers are used for the speakers. I think it is unnecessary as the LCD driver board has built-in audio amplifier.

The FaceTime camera is unfortunately a PCIe webcam and not USB so it is unlikely that it will work. There is no input for mic so it will not work.

Not sure where you bought it from but the seller gave it to me, just had to ask if there was a different image with the dual DP input

Good to know that it is possible to use 2 X DPs for 5K on the R1811. I would have gone for it or perhaps upgrade the R9A18 in future. Do you need to use a programmer to update the firmware?

Great stuff! I'm planning on getting the same components as you, however, I'm wondering how the LM270QQ1 SDE1 is with an A1419 housing. The SDE1 panel is for the A2115 housing. Can you confirm that the panel are same in size? Looks fit from the pictures, but I gotta be sure

I have the SD E1 variant on a A1419 housing. It is compatible but you need to remove the wireless antennas on the enclosure.

 

[yaosiang]

Thanks for making this post, I'm currently in the same boat as you were!

You mentioned some cons on reliability for existing 5k displays, how is your experience so far? Is there any asynchronicity when running dual DP 1.2?

No issue running it over dual DP 1.2 on the RX 580 connected to a MBP 15" Mid 2015 via the M.2 port. It is a beautiful display and works almost like an iMac.

 

[runtime_error0x]

Yes the built-in speakers are nice to have and you can get them from eBay at very good price. Audio is transmitted via DisplayPort/HDMI cable so no additional 3.5mm cable required. All you have to do is to connect the wires of the speakers to the 4-pin header on the LCD driver board (Left+, Left-, Right+ and Right-) using the right connector. I have seen other similar projects where separate audio amplifiers are used for the speakers. I think it is unnecessary as the LCD driver board has built-in audio amplifier.

The FaceTime camera is unfortunately a PCIe webcam and not USB so it is unlikely that it will work. There is no input for mic so it will not work.


Good to know that it is possible to use 2 X DPs for 5K on the R1811. I would have gone for it or perhaps upgrade the R9A18 in future. Do you need to use a programmer to update the firmware?


I have the SD E1 variant on a A1419 housing. It is compatible but you need to remove the wireless antennas on the enclosure.

They give you the program to use (only on Windows) and the image to flash, then you just select a couple stuff and hit the flash button. Pretty painless but bit scary since one wrong move could brick it

 

[yaosiang]

They give you the program to use (only on Windows) and the image to flash, then you just select a couple stuff and hit the flash button. Pretty painless but bit scary since one wrong move could brick it

Thanks. Just to confirm the update is done over DisplayPort/HDMI and not USB?

 

[fiatlux]

They give you the program to use (only on Windows) and the image to flash, then you just select a couple stuff and hit the flash button. Pretty painless but bit scary since one wrong move could brick it

I was interested in getting the dual-DP capability but I haven't asked my seller yet. Can you confirm that you keep single DP1.4 functionality? And I guess that the upgrade requires pulling the controller board from the monitor and connecting it through USB(-C?) to a Windows machine?

 

[runtime_error0x]

Thanks. Just to confirm the update is done over DisplayPort/HDMI and not USB?

I was interested in getting the dual-DP capability but I haven't asked my seller yet. Can you confirm that you keep single DP1.4 functionality? And I guess that the upgrade requires pulling the controller board from the monitor and connecting it through USB(-C?) to a Windows machine?

The update is done directly through DisplayPort. Yes the single DisplayPort is still at 1.4. You don't really have to pull it out as long as the a DisplayPort connection is accessible to connect to a Windows machine

 

[yaosiang]

Hello guys! Thanks for this topic.
I recently put together a monitor on matrix LM270QQ1 (SD)(A2) and board R1811 (https://aliexpress.com/item/4001084086628.html). I don't have the A1419 case at the moment and would like to know if the case A1312 will fit the matrix LM270QQ1? And the second question: this monitor is connected to MBP 16, and I'm really disappointed that MBP makes noise (~2500 RPM) when working with a 5K monitor. Are there any ways to reduce the noise?

Here is video and photo of my monitor. I replaced default fan from R1811 with Noctua NF-A4x10 PWM because default fan was a very noisy. Also, i added a variable resistor for the fan to lower the RPM to further reduce the noise. And i calibrated matrix with Datacolor Spyder X PRO because default colors looks wrong and now it looks good.

View attachment 1698639

This video shows the LM270QQ1 mounted on the A1312 case:

As for the fan noise on the MBP, I encountered the same problem on my 2015 MBP and ended up solving it by using an eGPU to drive the 5K display. However, this can be an expensive solution.

 

[fiatlux]

I replaced default fan from R1811 with Noctua NF-A4x10 PWM because default fan was a very noisy.

Interesting, the default fan is indeed pretty noisy to the point of being annoying, especially next to a whisper quiet MP6,1.

I was thinking of getting rid of the fan altogether and sticking the heatsink to the case with a thermal pad. Would that be too risky?