[Freedombox-discuss] Matrix-synapse fails to start, requires python3-authlib that's not available.

[A. F. Cano]

On Tue, Jun 16, 2026 at 09:06:07PM -0400, Znoteer via Freedombox-discuss wrote:
> Hi,
> 
> I'm not an expert in either FBX or Debian, but I would like to point out a couple of things...
> 
> On Tue, Jun 16, 2026 at 02:06:18PM -0400, A. F. Cano via Freedombox-discuss wrote:
> > 
> > Matrix synapse has been failing to start for a while.
> > 
> > Jun 16 13:46:58 fbx systemd[1]: matrix-synapse.service: Scheduled restart job, restart counter is at 80625.
> > Jun 16 13:46:58 fbx systemd[1]: Starting matrix-synapse.service - Synapse Matrix homeserver...
> > Jun 16 13:47:10 fbx python3[2143661]: Synapse 1.152.1 needs authlib>=1.6.11; extra == "oidc", but got authlib==1.6.0
> 
> matrix-synapse version 1.152.1 is from testing and unstable

Mmm... Ok.  I have "Frequent Feature Updates" activated.  Doesn't that
allow some backports from testing and unstable?

I might have updated matrix-synapse at some point to solve another
dependency problem.  It worked fine for a while after that.  This
version of matrix-synapse is available in the apt system.

> 
> [snip]
> 
> > 
> > The installed python3-authlib is 1.6.0-1+deb13u1, but aptitude says:
> > 
> > Versions of python3-authlib (2)
> > i	1.6.0-1+deb13u1
> 
> The version of python3-authlib that you have installed, 1.6.0-1+deb13u1, is from stable
> 
> > p	1.7.2-1
> 
> Version 1.7.2-1 is from testing and unstable. So, you appear to running a mix of stable and unstable or testing.

Shouldn't this version be available through the "Frequent Feature
UPdate"?  IIRC, both versions of matrix-synapse were available (the
stable one and the testing one).  Installing the testing one then solved
the issue I was having.

> I'm not sure how you may have ended up in this situation nor what you need to do to resolve it.
> 
> What do "cat /etc/debian_version" and "lsb_release -a" report? What is in your apt sources?

$ cat /etc/debian_version
13.5

$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 13 (trixie)
Release:        13
Codename:       trixie

As far as I know the freedombox is up to date and working fine, except
for matrix-synapse.

> [snip]
> 
> -- 
> Znoteer
> znoteer at mailbox.org

Thanks for replying.

Augustine