Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec")

From	Ansgar Burchardt <ansgar@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec")
Date	2019-10-25 10:30 +0200
Message-ID	<yV38R-7bC-1@gated-at.bofh.it> (permalink)
References	(4 earlier) <yUjpn-2Bb-5@gated-at.bofh.it> <yUqKd-8id-3@gated-at.bofh.it> <yUX3s-356-1@gated-at.bofh.it> <yU7xU-3ju-1@gated-at.bofh.it> <yUX3s-356-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

Show all headers | View raw

Ben Hutchings writes:
> The code signing service logs every file it signs, along with a hash of
> the detached signature, but I don't know where the logs are so I can't
> comapre with that.

I checked the audit log, but I don't think it will help much.  It
currently records that:

 - 2019-10-21 07:20:03.898781:
   decided to sign linux-image-5.3.0-1-amd64-unsigned_5.3.7-1_amd64/[...]/snd-hda-codec-hdmi.ko
   with sha256sum 3fe77a308b28825f0d18717e073b411246aea9bb753f76f6071b3fc4e60c6005

 - 2019-10-21 07:20:04.175379:
   signature for the file logged
   with sha256sum c2a36f35867ae92b8664f4bd2193e70370eb3b92013ea53f3573d2508d3da4cb
   (which matches snd-hda-codec-hdmi.ko.sig in src:linux-signed-amd64)

So linux' sign-file likely produced a truncated file for some reason;
note that ftp-master still uses linux-kbuild-4.9/4.9.189-3+deb9u1.

Ansgar

Thread

Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Josh Triplett <josh@joshtriplett.org> - 2019-10-22 21:00 +0200
  Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Tomas Janousek <tomi@nomi.cz> - 2019-10-23 00:20 +0200
    Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Tomas Janousek <tomi@nomi.cz> - 2019-10-23 09:40 +0200
      Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Tomas Janousek <tomi@nomi.cz> - 2019-10-23 17:30 +0200
        Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Ben Hutchings <ben@decadent.org.uk> - 2019-10-25 04:00 +0200
          Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Ansgar <ansgar@43-1.org> - 2019-10-25 09:50 +0200
            Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Tomas Janousek <tomi@nomi.cz> - 2019-10-25 10:00 +0200
              Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Ansgar <ansgar@43-1.org> - 2019-10-25 11:10 +0200
                Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Tomas Janousek <tomi@nomi.cz> - 2019-10-25 11:30 +0200
                Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Ansgar <ansgar@43-1.org> - 2019-10-25 12:00 +0200
          Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Ansgar Burchardt <ansgar@debian.org> - 2019-10-25 10:30 +0200
            Bug#942881: Audio on Lenovo X1 Carbon 5th generation stopped working after upgrade to linux-image-5.3.0-1-amd64 ("No response from codec") Ben Hutchings <ben@decadent.org.uk> - 2019-10-25 15:20 +0200
  Bug#942881: Confirming bug on Dell XPS 13 9360R Wilhelm Westermark <wilhelm@westermark.org> - 2019-10-23 01:20 +0200

csiph-web