[RPi4B] A/V Problems

Maybe just one more question, since I did the clean installation of LE 11.03 the screen resolution and sound got messed up. It only shows 1024x768, I need it to be 4k. The sound doesn't work either via HDMI, I edited the config.txt, tried "dtparam=audio=on", there were more options: ALSA: bcm2835 HDMI1. bcm2835 HDMI1 etc. and non of that worked. Does anybody know how to configure this?

Quote from VLouis

Hi, It's look like EDID (display detection) issue, ensure always to be the display powered first, check the HDMI connection...

After you got the display worked well, it's a good idea also to save the EDID data in LE, use the "getedid create" command in SSH.

I fixed the sound by adding "hdmi_drive=2" but nothing seems to be working on the 4k resolution. I also added "hdmi_force_hotplug=1" so I don't have to turn the screen on and then the RPi. The "hdmi_enable_4kp60=1" didn't work for the 4k, it still shows max 1024x768. Everything worked on LE 10.0.3 but I don't remember how I archieved that .

Here is my config.txt:

and distroconfig.txt:

Quote from HarryH

myshit,

I am in the lucky situation that the combination Argon One + Pi4 worked flawless out-of-the box. According to the PiHut documentation it seems to make a difference which HDMI port is in use.

https://support.thepihut.com/hc/en-us/artic…-Raspberry-Pi-4

With LibreELEC 11.0.3., I get vc4-hdmi-0 as primary audio device, but my cable chain is (Pi4)Argon One M2 -> AVR-> TV (1920x1080). I don't know if it's only because the auto-detection of your displays EDID is currently not working right, but it looks to me that your HDMI cable is connected to the second HDMI port.

HDMI can be erroneous, because of many pitfalls. VLouis and Da Flex comments are directing to the most well-known root causes of issues with EDID, handshake, maximum transfer speed (4K related) and so on.

- bad cabling (cheap manufactured cables, not certified, not 4K ready ...)

- buggy software/hardware at display device or AVR (TV, monitor, projector)

- production issue of circuit board in the Argon One case

- driver issue

- high frequency emitting devices in the near like USB3, WLAN

...

Additional I had made the experience that a powerless device which is connected at the same time to the AVR via HDMI can disturb CEC, because it seems to pulls down the +5V or the signal level at HDMI.

The Argon One casing seems not free of additional issues, some users had to force the EDID information. Do you have tested yet the 4 lines at the same time in your config.txt?

Thread

RPI4 No HDMI Sound using Argon One Case

Just got my RPI 8GB today and flashed LibreELEC on it and installed Argon One script on it. I have already set hdmi_drive=2 and there is still no sound. When I switch to Analogue and plug in a headphones and switch the Audio Output Device to HDMI / HDMI + Analog, I get sound only on the headphones . When I disassembled and used the RPI4 without the case, the audio seemed to work fine. This only happens when it is connected to the Argon One Case. Really appreciate any help

Kodi Log: …

prispither

June 1, 2020 at 4:22 PM

https://www.raspberrypi.com/documentation/….html#hdmi-mode

Code: config.txt

hdmi_drive=2
hdmi_ignore_edid=0xa5000080
hdmi_mode=16
hdmi_group=1

Display More

I tested the lines you wrote but it changed the max resolution to 1920x1080p, there is no 4k option. I found that you can set the resolution manually so I tried this:

disable_overscan=1
framebuffer_width=3840 framebuffer_height=2160
max_framebuffer_width=3840
max_framebuffer_height=2160
#hdmi_ignore_edid=0xa5000080
hdmi_pixel_freq_limit=400000000
hdmi_group=2
hdmi_mode=87
hdmi_timings=3840 1 48 32 80 2160 1 3 5 54 0 0 0 24 0 211190000 3

The resolution changed to 3840x2160 with 24Hz refresh rate. When I tried to change it to 60 FPS in the code but it didn't do anything, still 24FPS.

Quote from Da Flex

For what? 4K material usually doesn't provide 60FPS.

PS: Read the RPi release notes.

Sure, but the UI is laggy in 24 FPS and especially the mouse cursor. I read the notes, tried "hdmi_enable_4kp60=1" but it didn't work and my TV doesn't have the UltraHD Deep Color anywhere and my there's nothing to choose from higher than 1920x1080 in the whitelist in settings as written in wiki about 4k configuration.

Quote from Da Flex

Select a lower resolution (1080p) on the GUI settings. LE will temporary switch to higher resolutions at playback time.

Ok, that should be good enough, thank you very much