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22 Posts

01-19-2014

United States of America

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  • Message 61 of 78

Re:Yoga C930 audio on Linux

2021-01-05, 21:17 PM

@ Eric140 wrote:

> The BIOS team confirmed that they weren' able to do a fix for the 930. Apparently it' a different issue there and they don' have a solution for it. Sorry!

 

@MarkRHPearson 

 

Argg. That was the entire point of this issue - see subject line. I' glad that C940 users got things fixed, but I bought this a little over a year ago. When did the C940 even come out?

If nothing else, it would be great to just know what the issue is. If they know it' a different issue, they apparantly know what the issue is?

 

Thank you, absolutely. And kernel developers are very willing to work together on this. Can we see some Lenovo activity on the bug reports, like the one linked in the previous reply and get some actual collaboration going? This opaque process is wasting resources for everyone involved

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2 Posts

01-19-2021

Germany

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  • Message 62 of 78

Re:Yoga C930 audio on Linux

2021-01-19, 17:20 PM

Are there are plans to create an offical stable release? I do not really feel safe installing a Beta-BIOS and an official release would very appreaciated.

Also, are there any plans to integrate changes to the kernel into the official linux kernel, allowing us to use more updated kernels and non-debian systems like Fedora?

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9 Posts

12-26-2020

United States of America

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  • Message 63 of 78

Re:Yoga C930 audio on Linux

2021-01-19, 20:01 PM

I'm on Fedora 33, with the 5.10 kernel(latest fedora stable kernel) and its working for me with the beta bios. 

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218 Posts

12-17-2018

United States of America

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Re:Yoga C930 audio on Linux

2021-01-20, 11:38 AM

It is up streamed as confirmed by the Fedora test, the commit id is 

https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=f86de9b1c0663b0a3ca2dcddec9aa910ff0fbf2c

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2 Posts

01-19-2021

Germany

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  • Message 65 of 78

Re:Yoga C930 audio on Linux

2021-02-02, 17:27 PM

Thank you so much, I just installed the BIOS update on my C940 and after the update was done and my OS had booted, the sound worked perfectly without any setup required (running fedora linux - kernel 5.10.11).

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2 Posts

12-23-2020

Georgia

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  • Message 66 of 78

Re:Yoga C930 audio on Linux

2021-02-03, 18:26 PM

I updated BIOS to AUCN57WW version. At first, the display had some problems, it was blacking out and blinking. A couple of restarts helped it.

 

Audio still doesn't work as intended - only front speakers work, not all of them. That is nearly how it was before.

 

Since someone said that it might affect the power consumption and other stuff, I am thinking about resetting it. Are there any problems with Windows after BIOS update? Any tips if I should go back to an older version? And if so, how?

 

Thanks

 

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10 Posts

12-14-2020

United States of America

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  • Message 67 of 78

Re:Yoga C930 audio on Linux

2021-02-08, 17:59 PM

I have a C930 not a C940, so I can't confirm, but my interpretation of what Mark said is that the experimental BIOS attached is the one that works in Linux but has negative impacts on Windows performance, so was not rolled into the official BIOS update (if that is the one you installed).  It seems like you have the choice of either installing the experimental BIOS if you are mainly Linux focused or using the official update without the sound fix.  

 

On that note, if there is enough interest in the C930 and C940 community to continue with this project on our own, many people with similar processors and identical sound cards have solved this issue with their own kernel patch over the last few years.  I haven't seen any presence of C930/C940 owners in those forums and I think that it's likely that a similar technique could be followed which is pretty well laid out.  

 

In my case, with the C930 and previous BIOS (I haven't tried the new one yet) all audio components and drivers work perfectly in Windows run through a VM in Qemu with passthrough settings set up (with the exception of the internal mic which won't work).  I am able to capture the hda verbs that enable the speakers and I believe the audio jack.  I'm trying to figure out how to incorporate those into a kernel patch but I am very new to Linux and I think that if all members of this forum were to read through the Qemu related threads I linked previously and join efforts we could solve this issue without assistance from Lenovo.  It only took me a few hours to install Qemu with the proper Grub edits for device passthrough and capture the hda verbs with little experience in Ubuntu/Linux.  With enough time I may be able to solve this problem on my own, but input/feedback from other more experienced users would be helpful.

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2 Posts

05-20-2017

United States of America

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  • Message 68 of 78

Re:Yoga C930 audio on Linux

2021-02-15, 21:58 PM

@ MarkRHPearson wrote:

Hi @Eric140  

 

The BIOS team confirmed that they weren' able to do a fix for the 930. Apparently it' a different issue there and they don' have a solution for it. Sorry!

 

Mark

 

The 9i for the same bass problem.

 

Any idea if the 940 and the 9i 14 have the same underlying issue and whether there might be a similar fix?

 

Andrew

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7 Posts

06-13-2020

United States of America

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  • Message 69 of 78

Re:Yoga C930 audio on Linux

2021-02-15, 22:25 PM

I think it's great that the c940 issues have been resolved in a thread about c930s.  

 

Can we get back to the fact that what I'm hearing is that somehow windows can work fine with a c930s hardware but there's just no way to solve the problem in linux?  /s  That's just doesn't add up.

 

Please fix the mic and speakers in linux for the c930.

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9 Posts

12-26-2020

United States of America

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  • Message 70 of 78

Re:Yoga C930 audio on Linux

2021-02-22, 0:12 AM

Any chance of finding out if this is something that can be done or if this is something that we will just have to live with on the Yoga 9i? 

More then happy to test on my machine.  

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