How is the Pi 4?

[seeteeyou]

Hence my question as I stated above, did V3.12 actually make things worse or better? I couldn't tell if previous ones were making any differences or not.

 

Compatibility could lead to a tricky situation, sometimes it's a combination of different hardware / different version of firmware / different releases of software / different kernel versions / different cables (with or without +5V VBUS) etc.

 

If XHCI (USB 3.0 with VL805 from VIA Labs) were no good, how about EHCI (USB 2.0) then?

 

And then in some cases incompatibility issues related to USB might be resolved by adding USB hubs of some sort

 

https://audiophilestyle.com/forums/topic/38110-innuos-zenith-se-mkii/page/14/#comment-838015

 

Stuff like symphonic-mpd wouldn't work very well with the latest version of rpi-eeprom at all, while downgrading to an older version would work just fine. Even the revision (1.2 versus 1.4) of Pi 4 seemed to make a difference.

 

There's also something about newer versus older stepping as well

 

https://www.jeffgeerling.com/blog/2021/raspberry-pi-4-model-bs-arriving-newer-c0-stepping

 

Finally how about running dmesg | grep -i usb again with a different distro other than Volumio? Not sure if / ALSA / JACK / PulseAudio were behaving any differently

 

https://linuxmusicians.com/viewtopic.php?t=20370

[seeteeyou]

V3.12.0 ain't even any good under Windows, duh

 

http://jplay.eu/forum/index.php?/topic/3687-denafrips-usb-driver/?p=57873

Quote

okay, its not usb drivers, its  USB MCU FIRMWARE UPDATE.  Last version 3.6.0 work fine with asio JPLAY DRIVER, but new version 3.12.0 didn't work at all.  Jplaymini everytime get error "dac star fail"

 

[seeteeyou]

FYI - Apple 140W USB-C Power Adapter turned out to be a fantastic choice for Raspberry Pi 4B

 

https://www.stsd99.com/phpBB3/viewtopic.php?p=20480#p20480

https://www.apple.com/shop/product/MLYU3AM/A/140w-usb-c-power-adapter

 

We don't even need to add any caps at all, while Apple is even better than the already excellent ELECOM ACDC-PD1165BK with caps

 

https://www.my-hiend.com/vbb/showthread.php?13157-piCorePlayer6-1-0-Xenomai-44-1-48KHz雙機入門簡易安裝教學&p=244358#post244358

 

Of course we'll still need a decent USB-C cable.