Bug#988688: workaround for bug 988688 - disable security chip

From	Salvatore Bonaccorso <carnil@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#988688: workaround for bug 988688 - disable security chip
Date	2025-03-22 14:30 +0100
Message-ID	<Kt75g-7U28-15@gated-at.bofh.it> (permalink)
References	<CfUnn-498-1@gated-at.bofh.it> <Kt75g-7U28-17@gated-at.bofh.it> <CfUnn-498-1@gated-at.bofh.it> <Kt75g-7U28-17@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

Show all headers | View raw

Hi Jonathan,

On Fri, Mar 07, 2025 at 10:18:46PM +0000, Jonathan Dowland wrote:
> There are some related reports in Ubuntu. Note that for a while, Ubuntu
> kernels worked where Debian ones did not, but modern Ubuntu kernels have
> stopped working.
> 
>     https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970290
>     https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1963802
> 
> The workarounds there (disable security chip in BIOS) work for me on 6.12.12-1.
> 
> Since the 22.04-era kernel worked without the workaround, I have some hope
> we can figure out why (what did Ubuntu include in that kernel that Debian
> didn't? What did they take out between then and 24.10? What's the intersection
> of those two sets?)

BTH, I do not think its worth given the amount of open bugs we have
for src:linux and htis seems quite hardware dependent, for which we
need anyway much help from an affected user. That is, is you feel
strong about the issue still beeing adressed you might try to "bisect"
where things have changed in Ubuntu kernel and isolate the change
where that happened that it is now not working as well on them.

And then once it's isolated verify again a most recent version as
possible and report it upstream. 

Please do not get me wrong, hopefully I could make the position for us
clear. I just do not see what we could do here.

Regards,
Salvatore

Back to linux.debian.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Bug#988688: workaround for bug 988688 - disable security chip Salvatore Bonaccorso <carnil@debian.org> - 2025-03-22 14:30 +0100
  Bug#988688: workaround for bug 988688 - disable security chip "Jonathan Dowland" <jmtd@debian.org> - 2025-04-29 11:50 +0200
    Bug#988688: workaround for bug 988688 - disable security chip Salvatore Bonaccorso <carnil@debian.org> - 2025-04-30 16:50 +0200
      Bug#988688: workaround for bug 988688 - disable security chip Salvatore Bonaccorso <carnil@debian.org> - 2025-09-13 22:50 +0200
        Bug#988688: workaround for bug 988688 - disable security chip Salvatore Bonaccorso <carnil@debian.org> - 2025-11-01 21:00 +0100
          Bug#988688: workaround for bug 988688 - disable security chip Salvatore Bonaccorso <carnil@debian.org> - 2025-11-02 16:10 +0100

csiph-web