Re: No HDMI audio with Linux Kernel 7 rc1 or rc2...

[Takashi Iwai <tiwai@suse.de>]

On Thu, 05 Mar 2026 13:54:45 +0100,
Gilberto Ferreira wrote:
> 
> Hi there...
> 
> I just installed ArchLinux, because I thought that perhaps
> Ubuntu/Debian was the culprit.
> So, I went ahead and installed linux-mainline from AUR.
> But I get this same result.

Then please try to git bisect.  That's likely the most straightforward
way to figure out the culprit.


thanks,

Takashi

> 
> 
> ---
> 
> 
> Gilberto Nunes Ferreira
> +55 (47) 99676-7530 - Whatsapp / Telegram
> 
> 
> 
> 
> ---
> 
> 
> Gilberto Nunes Ferreira
> +55 (47) 99676-7530 - Whatsapp / Telegram
> 
> 
> 
> 
> 
> 
> Em ter., 3 de mar. de 2026 às 09:17, Gilberto Ferreira
> <gilberto.nunes32@gmail.com> escreveu:
> >
> > Well... I really don't know what happened.
> > Probably my fault, as usual.
> > I do this:
> > git clone https://github.com/torvalds/linux.git
> > cd linux
> > git checkout cb9b6f9d2be6bda1b0117b147df40f982ce06888
> > make mrproper
> > cp /boot/config-$(uname -r) .config
> > fakeroot make -j$(nproc) deb-pkg
> >
> > But after that, the result was
> > linux-image-6.19.0-rc1+_6.19.0~rc1-00011-gcb9b6f9d2be6-1_amd64.deb!
> > I don't get it.
> >
> > git log shows me this:
> >
> > commit cb9b6f9d2be6bda1b0117b147df40f982ce06888 (HEAD)
> > Author: Vivian Wang <wangruikang@iscas.ac.cn>
> > Date:   Thu Jan 29 09:56:09 2026 +0800
> >
> >    ALSA: hda/intel: Make MSI address limit based on the device DMA limit
> >
> > So, basically, I give up!
> > When this issue gets fixed, I will try kernel 7.0 again.
> >
> > Sorry to bother.
> >
> >
> >
> >
> >
> > ---
> >
> >
> > Gilberto Nunes Ferreira
> > +55 (47) 99676-7530 - Whatsapp / Telegram
> >
> >
> > Em ter., 3 de mar. de 2026 às 07:48, Takashi Iwai <tiwai@suse.de> escreveu:
> > >
> > > On Tue, 03 Mar 2026 11:27:24 +0100,
> > > Gilberto Ferreira wrote:
> > > >
> > > > Sorry... I am not an expert on this stuff.
> > > > I just like to compile the kernel...
> > > >
> > > > >> You need to *compare* between two kernel logs.  You can strip the time
> > > > >> prefix, and check which lines appear and which disappear in the new
> > > > >> kernel log.
> > > > How can I do that?
> > > > Via journalctl -xe -p3? journalctl -r -b?
> > >
> > > You can run "dmesg > dmesg.log" on the running kernel.  And you can
> > > get two outputs.  You can strip the time prefix from there by some
> > > script for easier comparison.
> > >
> > > > >> And, have you tested the revert?
> > > > I don't know how to do that.
> > > >
> > > > If you can point me to some doc, it would be nice.
> > >
> > > Have you ever built a kernel by yourself?  If yes, it should be just a
> > > git revert of the suggested commit and rebuild / retest.
> > > If not, which (distro) kernel are you using?  Usually you can ask
> > > distro people to build a test kernel.
> > >
> > > In general, please be more specific about your system and
> > > configuration.
> > >
> > >
> > > Takashi