No display on my setup (with Raspberry Pi Touch Display 2)

Hello,

My setup has been already added successfully to Roon. But the display is black. This is my setup and the way I have assembled it:

  • Raspberry Pi Touch Display 2 (connected to the Pi Rasp 4 via USB Power Breakout for Raspberry Pi Touch Display 2)
  • Raspberry Pi 4 Model B
  • HiFiBerry Digi2 Pro V2.2 on top of it (this is why I had to give the power to the display through USB)
  • Raspberry Pi 45W USB-C Power Supply. Is this enough for everything? From my calculations (and chatGPT) it seems yes. I really wanted to have one cable for everything.

I have installed it today and the RoPieee 2025.05 (2453) [STABLE]. At the first boot I saw the usual kernel starting then display went black. I sent logs through feedback from the Advanced tab (identifier 45b7769ad1e010fe)

During the installation I see some instructions on the display, then nothing.

Any idea?

Have you enabled the extension in Roon?

Thanks James, and yes. Everything seems alright there, and correctly assembled. I’ll re-flash and re-install…


@Fabio_Petito
High Febio,
I do not have a Display 2 nor a HiFiBerry Digi2 Pro nor that USB Power Breakout board, but I would think that possibly the USB is not powered by RoPieee when it is not needed (no USB-DAC connected and configured).
Are you able to check the voltages on the USB Power Breakout board to see if it realy powers 5V to the display, especially when RoPieee is running?
A solution could be to solder the powercables of the Display 2 directly on the HiFiBerry Digi2 Pro.
Kind regards, Frank.

1 Like

@Fabio_Petito
I presume that you browsed to the IP-address of your RPI4, and configured the Display2 in the tab “Display”. Otherwhise, please check that tab.
Kind regards, Frank.

It could be. Because the display is ON for a few seconds during the first OS installation, and I see the kernel showing messages (no errors) about configuring the display then black. No clock.
And Frank, yes. I configured the display, changing from autodetect to the display 2 and other options…but after the reboot I see nothing. All components are new and checked the compatibility in the Ropieee pdf guide…what a pity having this problem.

What you also could try: browse to your RPI4 and in the tab “Audio” set “Audio USB” on. Maybe the USB is then powering its 5V to the display. Of course, the best way is to measure the voltage on the USB Power Breakout board, if you have a multimeter (or borrow it from a neighbour/friend).

1 Like

To be honest it still sounds like you might not have enabled the extension. In Roon, go to Settings - Extensions like the below image. That said, I think with the extension disabled the screen should still show “something”

That’s not the case: if the screen is properly working, and you have not enabled the extension, you get a clear error message on the screen about this.

Keep it on auto-detect.

@Fabio_Petito the screen is detected, however it fails at startup in proper communication with it. I suggest you simplify your setup first: remove the HAT and break out bord and first see if it works in it’s basic form: the PI with the screen and nothing else. If that works you can take it from there.

Thanks

1 Like

Thanks for your help, guys. The extension is enabled and can see the toslink output activating if I play a song with Roon.
I will follow your direction and suggestions. Ordered also a cable so I can feed the display with a second 5v adapter to avoid issues. I will re-install everything leaving the channel on stable, the display as auto-detect and starting without hat which makes sense (I can probably add it later).

Hello,
An update. I tested with these approaches below (clean installation and correct configuration in Roon, so extension enabled):

  1. Display with power coming from a separate adapter. The display is black after these messages (apologies for the poor quality, you should be able to read the latest info messages)

  2. I removed the HiFiBerry Digi2 Pro V2.2 after shutting down everything and the display works now taking the power from the Pi Rasp 4, like in the guide, and it worked.


Now, questions:

  1. Is the HiFiBerry Digi2 Pro V2.2 compatible with this Ropieee version (ropieeexl_ose_pi4-2025.5.0-stable.20250518.2453)? It seems not…why the Ropieee would not be able to action the display (powered independently) with the hat on top of the rasp 4 and why would it work without it?

  2. My DAC (D50 III) should be able to receive the audio output from the USB (which one 3.0 or 2.0 from the Pi Rasp 4 is better?)

I must have the output via optical cable because TV and Streamer will be used this connection and will go to the DAC via automatic splitter. The DAC is not switching channels automatically so it will negatively affect the final experience if I can’t use the HiFiBerry Digi2 Pro V2.2 hat (which it seemed to be compatible with Ropieee)

Thanks in advance for your patience.

I confirm that, even when the HiFiBerry Digi2 Pro V2.2 (version not indicated in the list) is mounted (and feed from the PI Rasp 4 through this), the display stops working only when I select that hat via admin view.

Would it be possible to check if this new version of this hat is compatible @spockfish? Are both display and hat supposed to be able to work together? Is there a better hat I should try and you know it works well with this setup? I am happy to be the beta tester and help as much as I can.

Further updates:

  1. Fresh installation without HAT and with the USB 2.0 connected to Topping D50 III. Display ON but Roon not showing the ropieee in Audio section, and Audio not detected in the tab Audio in ropieee.local (extension enabled).
  2. Another fresh installation, following the guidelines below but the display is not working:

(I have cross-checked disabling the HAT in Audio section, and leaving “No HAT configured” makes the display works…but not the rest). Is it an overlay issue or what? Any help is welcome. Happy to send diagnostic logs through the Send feedback functionality.

Hello Fabio,
I had a similar problem with my Hifiberry DAC2 Pro after installing the new Touch Display 2.
The problem was the HAT driver for my Hifiberry DAC2 Pro. I‘ve tested a bunch of other drivers and with „Justboom Amp HAT / DAC HAT“ it works :grinning:

Have a nice Weekend!
Frank

1 Like

So, selecting those drivers, but leaving the hardware/HAT unchanged, did it work?? Ok, planning to do some reboots after dinner :joy:
I will provide feedback if I find a solution. It would be nice to make it work with a screen…

Thanks a lot and have a nice Weekend too!

There’s probably a conflict between the Digi Pro driver and the Display. You’re not the first to report it, with this specific HAT. Not much I can do about it…

The v2.2 uses the same overlay as ‘the original’ one, so no difference there.

Maybe indeed @Fabio_Petito trick can solve this…

1 Like

Additional to the trick. I wonder if there are better supported HATs (high-quality S/PDIF cards for any 40-pin model). I will investigate this.

Thanks!

There are plenty. Especially when it comes to SPDIF there are more than enough alternatives that are just as good (or better).

For instance? I thought this hifiberry digi2 pro was the best one, based on the searches done on Google. I am based in London. Unfortunately, Frank, using “ Justboom Amp HAT / DAC HAT” and few others made the display available but broke the audio in Roon…

Google around. The Justboom Digi, The Pi2Design PI2AES and there are more.

1 Like