About Combo384 DSD256 Native support


(Peter Lie) #21

This question is important because older stable firmware versions do not support Linux native DSD. Newer ones do, and I think certain versions even changed the USB PID.


(Harry ten Berge) #22

Yeah that’s what I"m seeing. Unfortunately Amanero does not provide a nice overview of all the released versions.


(Harry ten Berge) #23

I’m familiair with this story.


(Peter Lie) #24

I’m sure you are. So, could you see the Amanero firmware version from the logs? If we find that the version is old you don’t even need to build another kernel.


(Harry ten Berge) #25

Well, that’s the point a bit. I can’t find an overview of all the released firmware, so I also can’t relate to the version numbers I see.

In the kernel the known versions for Amanero are: 0x199, 0x19b and 0x203.

This device has 0x198.

But these numbers don’t relate to anything I see on Amanero’s website.


(Peter Lie) #26

Assuming these hex values map to the human readable versions in the way I think it does, I think this device firmware is old (old is good as it’s stable) does not support Linux native DSD. Beta support only began with version 1099rc1 and had a long history of bug fixes and it’s at 2005 now.


(Harry ten Berge) #27

Yeah that makes sense. Is there a place where this information from Amanero is available? In other words: where did you got it? :wink:


(Harry ten Berge) #28

@SeaChange can you check if there’s a firmware update for your DAC?

Looking into this a little bit more and with the help of @wklie it’s now clear that the firmware in your DAC does not support native DSD whats over (although it advertises it). This means that patching the kernel is not gonna work…


(Peter Lie) #29

I read the whole thread linked above.


(Harry ten Berge) #30

Ah… I stopped in 2016 and was not familiar with the latest update.


(Steven Woo) #31

First, kindly thank you very sincerely
I tested it in the latest version of Combo384.
The symptoms are the same.

In the picture below
The above is the Femto Colok Combo384 (made in China, licensed)
Below is the latest model made in Italy
I tested both, and the results are the same


(Steven Woo) #32

My dac is a Soekris R2R DAC
Soekris supports up to DSD256
Below is the feedback of the latest Combo384
The symptoms are the same
And where is RoPieee involved in the picture?
Red box? Yellow box?

In addition, is RoPiee planning to support the ASUS Tinker Board?

Kind Regards Thank you very much.

Welcome to RoPieee. [RoPieeePi2]

Logs have been sent to RoPieee HQ with unique identifier 5be5e20ac31297a1

Please leave a mail or a note on the Roon forum with this identifier. Thanks!


(Harry ten Berge) #33

Hi,

As mentioned earlier this is not gonna work, because the firmware of your Combo384 chipset does not support native DSD. You need to upgrade the firmware of the USB chipset.

RoPieee support for the ASUS Thinkerboard is not gonna happen, at least until there’s better support for Linux.


(Steven Woo) #34

Thank you for your kind response.


(Harry ten Berge) #35

Let me know how it goes with the firmware. Curious if they can upgrade your device.


(Mr Fix It ) #36

Me too…might see if @alvin1118 can lend some help here too, he has some dealings with the Amanero guys in the past


(Steven Woo) #37

tested it in the latest version of Combo384.
The symptoms are the same.

In the picture below
The above is the Femto Colok Combo384 (made in China, licensed)

Below is the latest model made in Italy
I tested both, and the results are the same


(Harry ten Berge) #38

I’m not sure what you mean… You tested with an updated USB firmware?


(Steven Woo) #39

The bottom of the photo is the combo384 ddc purchased earlier this year
I do not know if the firmware is the latest version

Thanks


(Harry ten Berge) #40

That’s what I’m talking about. Your firmware is outdated as I could see from the logs (see previous posts). That needs to be upgraded to have a chance at this working.