Hi Jim, thank you for adding the extra information. The configs for the noble (24.04) and jammy (22.04) kernels both have the same PPS options enabled, and the pps_ldisc module is being loaded on your machine, which appears to be the correct driver to use.
Two things I can thin k to suggest are, 1) try switching to the generic noble 6.8 kernel rather than the lowlatency kernel. Just as a test, this might provide useful information. 2) The linux-modules-extra package contains other drivers that are not always installed. Some times between releases a driver will move from the main linux-modules package to the linux-modules-extra package. This might resolve the issue as well. Can you let me know if either of these resolve the issue? It would provide more info for me to use to look into this. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2078725 Title: 24.04.1 LTS useless as a stratum 1 ntp server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2078725/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs