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Subject: Re: Haswell audio no longer working with new Catpt driver
To:     Christian Labisch <clnetbox@gmail.com>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
        Akemi Yagi <toracat@elrepo.org>,
        Cezary Rojewski <cezary.rojewski@intel.com>,
        Greg Kroah-Hartman <stable@vger.kernel.org>,
        Greg Kroah-Hartman <linux-kernel@vger.kernel.org>,
        Justin Forbes <jforbes@redhat.com>
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From:   =?UTF-8?Q?Amadeusz_S=c5=82awi=c5=84ski?= 
        <amadeuszx.slawinski@linux.intel.com>
Message-ID: <4c5b8a03-6508-541f-2a72-39cb3052b4f1@linux.intel.com>
Date:   Thu, 31 Dec 2020 12:20:42 +0100
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On 12/31/2020 11:50 AM, Christian Labisch wrote:
> Hi Lars-Peter,
> 
> Thank you, please find attached the requested information from both kernels.
> I freshly installed the fedora kernel 5.10.4 to give you the latest results.
> 
> Regards,
> Christian
> 
> Christian Labisch
> Red Hat Accelerator
> clnetbox.blogspot.com
> access.redhat.com/community
> access.redhat.com/accelerators
> 
> 
> On Thu, 2020-12-31 at 11:04 +0100, Lars-Peter Clausen wrote:
>> On 12/31/20 9:33 AM, Greg Kroah-Hartman wrote:
>>> On Wed, Dec 30, 2020 at 07:10:16PM +0100, Christian Labisch wrote:
>>>> Update :
>>>>
>>>> I've just tested the kernel 5.10.4 from ELRepo.
>>>> Unfortunately nothing changed - still no sound.
>>> Ah, sad.  Can you run 'git bisect' between 5.9 and 5.10 to determine the
>>> commit that caused the problem?
>>
>> The problem is that one driver was replaced with another driver. git
>> bisect wont really help to narrow down why the new driver does not work.
>>
>> Christian can you run the alsa-info.sh[1] script on your system and send
>> back the result?
>>
>> You say sound is not working, can you clarify that a bit? Is no sound
>> card registered? Is it registered but output stays silent?
>>
>> - Lars
>>
>> [1] https://www.alsa-project.org/wiki/AlsaInfo
>> <https://www.alsa-project.org/wiki/AlsaInfo>
>>
>>

Hi,

from reading provided files it seems that you use snd_intel_hda driver, 
it should be possible to git bisect it between 5.9 and 5.10 as it wasn't 
replaced.

Catpt driver is used on machines using DSP.

Amadeusz