I think its related to the upgrade from Debian 12. Other users have now 
reported it works for them
My debian 12 instance has really had a hard time over the years.  
But all I did was remove linuxcnc-uspace, delete the custom linuxcnc.list and 
do a dist_upgrade, followed by installing linuxcnc-uspace again. I removed 
linuxcnc first to make sure it came from Debian not from our repos. It should 
have worked....
 
Rod Webster
 
M.   +61 435 765 611
e....@erpx.au (mailto:r...@erpx.au)

 
 
 
On 2025-08-11 23:08, Robert Schöftner  <r...@unfoo.net>  wrote:
> Am Sonntag, dem 10.08.2025 um 14:51 +1000 schrieb rodw:
> >  Debian Trixie was oficially released yesterday and is now the stable
> >  branch of Debian.
> >  After a dist-upgrade from Bookworm I get
> >     
> >  rod@debian:/etc/apt/sources.list.d$ sudo apt install linuxcnc-uspace
> >  linuxcnc-uspace-dev
> >  Reading package lists... Done
> >  Building dependency tree... Done
> >  Reading state information... Done
> >  Some packages could not be installed. This may mean that you have
> >  requested an impossible situation or if you are using the unstable
> >  distribution that some required packages have not yet been created
> >  or been moved out of Incoming.
> >  The following information may help to resolve the situation:
> >     
> >  The following packages have unmet dependencies:
> >    python3-pyqt5.qtwebengine : Depends: libqt5webengine5 (>= 5.14.1)
> >  but it is not going to be installed
> >                                                            Depends:
> >  libqt5webenginecore5 (>= 5.14.1) but it is not going to be installed
> >                                                            Depends:
> >  libqt5webenginewidgets5 (>= 5.15.1) but it is not going to be
> >  installed
> >  E: Unable to correct problems, you have held broken packages.
> >     
> >  The Debian package search indicates that    our dependencies don't
> >  exist in Trixie. Yet we managed to get 2.9.4 into Trixie.
>
>
> How exactly did you upgrade?
>
> Debian packages in a release are installable and dependencies resolve,
> that is checked by automatic tooling even in development versions (and
> release-critical bugs are created if something doesn't work, which
> would block the release or get the package removed -- there have been
> such warnings regarding linuxcnc package causing breakage in recent
> months).
>
>
> Also, upgrading and installing from scratch really are different
> things, upgrading always can have minor issues especially if some 3rd
> party packages or backports are involved.
>
> --   
> Robert Schöftner  <r...@unfoo.net>
>
>
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