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

[Takashi Iwai <tiwai@suse.de>]

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