If I try using the MX package installer, which also shows the PPAs, I get more information.
Depends on: libqt6gui6t64 (>= 6.4.0) but is not installable
Depends on: libqt6network6t64 (>= 6.1.2) but is not installable
Depends on: libqt6widgets6t64 (>= 6.3.0) but is not installable
Depends on: libqt6xml6t64 (>= 6.1.2) but is not installable
and
1. qpwgraph:amd64=1.0.0.2git.197660-1.1 is selected as an upgrade
2. qpwgraph:amd64=1.0.0.2git.197660-1.1 Depends on libqt6gui6t64 (>= 6.4.0)
but none of the choices are Installable:
[no choices]
For Qtractor, it looks like this:
qtractor : Depends on: libqt6gui6t64 (>= 6.4.0) but is not installable
Depends on: libqt6network6t64 (>= 6.1.2) but is not installable
Depends on: libqt6widgets6t64 (>= 6.3.0) but is not installable
Depends on: libqt6xml6t64 (>= 6.1.2) but is not installable
E: Unable to correct problems, you have held broken packages.
E: The following information from --solver 3.0 may provide additional context:
Unable to satisfy dependencies. Reached two conflicting decisions:
1. qtractor:amd64=1.5.12.9git.09e732-19.1 is selected as a downgrade
2. qtractor:amd64=1.5.12.9git.09e732-19.1 Depends on libqt6gui6t64 (>= 6.4.0)
but none of the choices are installable:
[no choices]
If I try using the MX package installer, which also shows the PPAs, I get more information.