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Date:   Thu, 31 Dec 2020 12:31:42 +0100
From:   Christian Labisch <clnetbox@...il.com>
To:     Amadeusz Sławiński 
        <amadeuszx.slawinski@...ux.intel.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        Akemi Yagi <toracat@...epo.org>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Greg Kroah-Hartman <stable@...r.kernel.org>,
        Greg Kroah-Hartman <linux-kernel@...r.kernel.org>,
        Justin Forbes <jforbes@...hat.com>
Subject: Re: Haswell audio no longer working with new Catpt driver

Thanks Amadeusz,

Now, who has to do what ?
I assume many users will be affected !

Regards,
Christian

On Thu, 2020-12-31 at 12:20 +0100, Amadeusz Sławiński wrote:
> 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

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