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Just to be sure, we are talking about the gofanco HDMIUSBC and not the USBCHDMI? The HDMIUSBC requires USB 2.0 input for power. Is it getting enough power? The USB 2.0 connection should also allow USB connection to USB-C DisplayPort Alt Mode display. The display cannot be of the USB 3.x + two...

Right. The spec says it has USB 3.0. USB 3.0 requires two lanes of USB-C so only two lanes remain for DisplayPort (USB 2.0 uses USB-C lines that are not used by USB 3.x or DisplayPort). It's limited to DisplayPort 1.2 HBR2 (no DSC) input so the max is 360 MHz (assuming 8bpc RGB). There are some...

I remember AMD Radeon software custom resolutions don't work well - they don't let you change the bpc so you have to use CRU. But the EDID overrides created by CRU do not get applied to displays connected to MST hubs that are connected to AMD GPUs. But I believe this problem was fixed in a...

The Lontium LT8711X-B is supposed to be able to do HBR2. Maybe it's choosing HBR because that is more likely to have a cleaner signal. You need a dump of the DPCD registers to learn the maximum link rate. The AGDCDiagnose command on an Intel Mac will get you the info. I'm not sure if there's a...

I could not get it from the Windows Store. Search from the Microsoft Store app does not find it. I can find it using google which leads to the Microsoft Store website, but clicking "Get" goes to the Microsoft Store app which shows the info for the app but says "is currently not available". I...

When I used fwupd, I remember getting some kind of error but I don't remember what it was. The update seems to have worked anyway (may need to disconnect the adapter and reconnect it to be sure). I wonder how the checksum works? I don't think fwupd has the ability to read the rom from synaptics...

I think you should open an issue in the fwupd GitHub page. The project is very active. Attach the firmware you want to use, and the output of sudo fwupdtool get-devices --verbose Also, do you have a dump from the VmmUpdate.exe of your Sunix before you tried updating it? Actually, I think you...

Did you ever get around to trying fwupd? It's been updated recently to allow working with AMD GPU. Still, sudo fwupdtool get-devices won't be able to see the MST Hub firmware unless the MST Hub is connected to Intel GPU (with or without display), or to the AMD GPU with a display connected to...

If you have a PCIe slot then the Sunix will work and $19 is a great price. Here are some other options: https://egpu.io/forums/gpu-monitor-peripherals/does-a-usb-c-monitor-support-displayport-input-over-a-usb-c-to-displayport-cable/paged/4/#post-79127 Newer options not listed there are: - Maple...

Yes, it should be as simple as apt-get (if it's not already installed?) Then you connect the MST Hub. Then you install the firmware. No power might be a problem. The fwupdtool just needs to be able to communicate via the dp aux channel to check for a firmware. I don't know if your Sunix will...

Did you try fwupd in Linux? When I had the wrong firmware in my Delock 87737 it would cause a hang if a display was connected to it. If a display was not connected to it, then the MST Hub would not appear as a device unless it was connected to the Intel GPU with a display connected to a...

My experience with fwupd and Synaptics MST hubs is at https://github.com/fwupd/fwupd/issues/1665 and https://github.com/fwupd/fwupd/pull/2923 There was no method for saving the current firmware. I didn't try using one vendor's firmware on another vendor's device. In unrelated news, I see...

EDID overrides (created by CRU or display installer) are stored in the registry per display vendor/product and GPU port. CRU will let you change the display name in the EDID override, so you should add a description of the GPU port number. Then if you see that new name then you can tell it's...

Are you using CRU or AMD software to create the custom resolution? I think AMD software is broken for custom resolutions so you have to use CRU. Also, AMD doesn't accept EDID overrides for displays connected via MST Hub so make sure it's a direct connection. Last time I tried was a couple months...

AMD's custom resolutions are stuck at 6bpc max so I tried CRU. AMD doesn't use EDID overrides created by CRU (or any other method affecting the registry) when the display is connected to an MST Hub. EDID overrides appear to be per display model and GPU port, so you need to copy the EDID override...

The cable needs to include USB power. DisplayPort cannot power a USB-C display. Use a Wacom Link Plus or Belkin Charge and Sync cable which includes USB...

Many of the old VESA specs are free https://vesa.org/vesa-standards/ DMT (Display Monitor Timing) spec available at https://app.box.com/s/vcocw3z73ta09txiskj7cnk6289j356b/folder/11133572986 The edid-decode project lists and incorporates all? the EDID related specs (HDMI, CTA, VESA (DisplayID...

Yes of course you want to use the existing display output port of your laptop (HDMI) if you can - it will be less expensive and saves the multipurpose USB-C/Thunderbolt ports for other purposes. If you can't find an HDMI solution, you can still use the HDMI port with DisplayPort solutions using...

There are methods to adding USB-C. For a device with a non-detachable USB-C male cable like the plugable USBC-VGA, you need a method that adds a female port such as the Sunix UPD2018 PCIe card (or Thunderbolt 3 add-in card) or a Wacom Link Plus...

8-bit video means 8 bits per component (bpc). Their are 3 components, either RGB or YCbCr. 6 bpc: 2^(6*3) = 2^18 = 262144 = 262 thousand (I seen this on Nvidia in Windows, not sure about AMD, not in macOS). 8 bpc: 2^(8*3) = 2^24 = 16777216 = 16.7 million (the other 8 bits of 32 bits may just be...

You would need a Wacom Link Plus to convert HDMI 1.4 from the Xbox one to USB-C. I'm not sure about HDCP content.

Curiosity. We have these adapters that can do 330, 340, 360 MHz and I wonder if they can go faster using 6 bit. I understand that the adapters while they can accept pixels at 360 MHz, that their DACs may only give good results up to 270 MHz or whatever. Of course CRTs have a limit on their...

The driver accepts 480 MHz timing, but the adapter outputs black from the DACs or no syncs at all?

That would require 389 MHz (GTF). 360 MHz is the max pixel clock rate (8 bpc) for 2 lane DisplayPort 1.2 used by the ANX9833, ANX6211, and ANX6212. Do these support 6 bpc input for higher pixel clocks (480 MHz) using Nvidia control panel? Does AMD control panel have a 6 bpc option?

Try CRU? https://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

Use Wikipedia to lookup stuff like "DisplayPort" "USB", "USB Hardware", "USB-C", "Thunderbolt", etc. You have no problems with HDMI input, screen going dark, etc? When I tried it, it was unreliable, but that may just be my cables or adapters cousing a problem. HDMI 1.4 is fine since you have a...

The Apple USB-C Digital AV Multiport Adapter only works one way. The USB-C port connects to the computer. The HDMI port connects to a display. It will not work with the HP s14. It converts two lanes of DisplayPort to create an HDMI signal. It will not convert an HDMI signal (from the HDMI port)...

DisplayPort / mini DisplayPort cables and adapters are always bidirectional. It's only USB-C to DisplayPort that might have a one/way problem (the USB-C end of the cable has chips to tell the USB-C port what kind of cable it is). The Wacom Link Plus has a power input (mini USB 2.0). The power...

You want the Startech for the Power Delivery input, don't you? Connect the Wacom Link Plus to the Startech with a DisplayPort to Mini DisplayPort cable. Or review the options I gave in #161

Club 3D has a few VESA certified DisplayPort cables, but that isn't one of them. https://www.displayport.org/product-manufacturer/club-3d/ But that doesn't matter - a cable doesn't need to be certified to work. In my reply at #169 I had forgotten that you were trying to...

You'll have to click all the cables and search the description and reviews for "directional" to be sure - can't just go by the title.

This might get you some results: https://www.amazon.co.uk/s?k=bidirectional+usb+type+C+to+DisplayPort&ref=nb_sb_noss Correct. Most USB Type C to DisplayPort cables only allowed DisplayPort signals to originate from the USB-C end (not from the DisplayPort end).

To connect to a USB-C display from a DisplayPort port, you need to use a bidirectional USB-C to DisplayPort cable like the one from Moshi. It supports HBR3 and is VESA certified. https://www.displayport.org/product-manufacturer/aevoe-moshi/ You may find cheaper bidirectional cables that don't...

I said poke and then enumerate. I linked a post that has a link to another post that has the info. I used the EFI Shell to do the poke (mm), then booted the OS which does the enumeration. I have not found or created a method to re-enumerate in macOS or Windows. I think Linux has a method to do...

For DisplayPort to USB-C with DisplayPort alt mode conversion (without USB signals), or DisplayPort to Thunderbolt conversion (without PCIe signals): It should just work. For USB: ThunderboltEX3 uses Alpine Ridge so it may be similar to the GC-ALPINE RIDGE. In a non-TB motherboard, you have to...

Check harder. The HP Thunderbolt Dock G2 has a USB-C port with DisplayPort alt mode output. The adapters with a DisplayPort output can be connected to a Huawei VR 2 cable or Wacom Link Plus which take USB and DisplayPort signals to make USB-C with DisplayPort alt mode.

There are a few options: 1) You need a USB-C dock with power deliver plus USB-C with DisplayPort alt mode output. The HP Thunderbolt Dock G2 will do that (it works with computers that have USB-C with or without Thunderbolt - it has up to 100W of Power Delivery). There may be other similar...

I did some testing with a Wacom Link Plus. I got it to work with USB-C to HDMI 2.0 (4 lane HBR2) and USB-C to VGA (2 lane HBR2) and USB-C to DisplayPort cable (4 lane HBR2). It is of course limited to USB 2.0 speeds because the USB input is only USB 2.0 Micro-B (4 conductors on both the USB-A...

I saw this BizLink VirtualLink™ Interface Adapter https://www.bizlinktech.com/products/detail/1332/VirtualLink™+Interface+Adapter I don't know if it really exists or how to buy it though. It supports all the DisplayPort alt modes: DP HBR3 x 2 + USB 3.1 gen 2 + USB 2.0 and DP HBR3 x 4 + USB 2.0...

Billboard devices are normal with USB-C devices. They're always USB 2.0. The billboard device will tell you if you connect a USB-C device that wants DisplayPort or Thunderbolt alt modes to a USB-C port that only supports USB for example.