Request for Advanced BIOS Access – Corebook X Linux Sound Problem

Laptops CoreBook X
1

I am currently experiencing issues with my Corebook X related to Linux audio support. Regardless of the Linux distribution I install, only one speaker works (the right one- internal speakers). I have tested multiple distributions (ubuntu, archlinux, debian, fedora, etc.), including those using recent kernel versions 6.18, and I have also tried various solutions suggested in forums as well as recommendations provided by ChatGPT (pulseaudio, alsadriver). Unfortunately, none of these solutions have resolved the issue.

For this reason, I need access to the advanced BIOS mode of my Corebook X in order to check whether there is any configurable option that could help me fix this problem.

It is important to note that in Windows, the audio works correctly with the appropriate drivers, indicating that there is no apparent hardware failure. However, the audio chip is not well known, which makes it difficult to find updated and compatible drivers for Linux.

Below are the system details of my device:

  • SMBIOSBIOSVersion: DN525ERV101

  • Manufacturer: American Megatrends International, LLC.

  • Name: DN525ERV101

  • Serial Number: JCorBXUY1H250800826

  • Version: ALASKA - 1072009

Thanks.

2

When you had Windows installed you didn’t have any problems, I don’t think it’s a BIOS issue.

To access the advanced BIOS settings you can search on Google.

I think Chuwi doesn’t support Linux.

1 Like
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I searched online for ways to access the advanced BIOS options on the Chuwi CoreBook X. I tried all the options that seemed to be available, but none of them worked. According to ChatGPT, if I have already tried all possible methods, it is likely that the BIOS has this option locked. I know it is possible to reflash the BIOS using an unlocked version that includes the advanced menu.

Regarding Chuwi’s support under Linux, there is general compatibility. However, the audio chip in this device does not work correctly: sound is only output through a single internal speaker. The device has a left speaker, a right speaker, and a subwoofer, but after more in-depth testing, I found that the only speaker producing sound is the subwoofer, which Linux detects as the right channel.

4

CBook X AMD 7430u

Hi folks, I tried to found some clues online because that’s such a great laptop for runnin linux, someone on reddit had tips about enabling the speakers on the Intel chipset version by using hdajackretask, found the ids on my latop but enabling them does nothing

5

There are several threads discussing problems with installing Linux drivers.

When I say Chuwi doesn’t support Linux, what I mean is that it doesn’t have Linux drivers.

6

When replacing my SSD, I was fiddling around with the Speakers. Acutally two are used:

Left is mapped to right: right is mapped to the Subwoofer.

hdajackretask only shows the right speaker mapped to woofer, so I have no clue, how the left speaker to right speaker is accessed.

Windows without the Chuwi Drivers has the same problem (at least my installation), so maybe, there is a possibility that Chuwi can support, as it seems they do some magic in their driver…

The problem is exactly the same in both the AMD and the Intel Corebook

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As an idea I would contact Senary, who developed the audio codec. Maybe, there is somebody who can help regarding the magic in the Windows audio driver and signal routing. → Senary