Public bug reported: Starting with 6.11 linux-lowlatency is no longer a dedicated kernel flavor but instead just a meta package that depends on linux-generic and lowlatency-kernel. lowlatency-kernel provides a grub config that configures the generic kernel to lowlatency via kernel bootargs.
This bug report is an umbrella ticket that lists multiple issues that need to be fixed in different places. 1. lowlatency-kernel provides the grub config snippet. ubuntustudio- settings should not do the same. 2. There is no longer a linux-lowlatency kernel flavor, so sorting the boot kernels in grub is no longer necessary. In fact it is now problematic. If there are both old-style and new-style linux-lowlatency packages installed on a system, the old linux-lowlatency is sorted higher than the new linux-generic + bootargs. 3. Current ubuntustudio daily images don't include linux-lowlatency and thus also not lowlatency-kernel. This is likely an ubuntustudio seed issue. 4. The ISO kernel is now also the generic kernel and as such it needs the bootargs to make it lowlatency. The above grub configs don't help in this case since the installer code in debian-cd has the bootargs for the ISO kernel hard coded. See https://bugs.launchpad.net/ubuntu/+source/lowlatency- kernel/+bug/2119012/comments/26 This was fixed in Noble: https://git.launchpad.net/~ubuntu-cdimage/debian-cd/+git/ubuntu/commit/?id=69635ea048f8d62e701babdfbb306c12107fab2d ** Affects: ubuntustudio-default-settings (Ubuntu) Importance: Undecided Status: New ** Description changed: Starting with 6.11 linux-lowlatency is no longer a dedicated kernel flavor but instead just a meta package that depends on linux-generic and lowlatency-kernel. lowlatency-kernel provides a grub config that configures the generic kernel to lowlatency via kernel bootargs. This bug report is an umbrella ticket that lists multiple issues that need to be fixed in different places. 1. lowlatency-kernel provides the grub config snippet. ubuntustudio- settings should not do the same. 2. There is no longer a linux-lowlatency kernel flavor, so sorting the boot kernels in grub is no longer necessary. In fact it is now problematic. If there are both old-style and new-style linux-lowlatency packages installed on a system, the old linux-lowlatency is sorted higher than the new linux-generic + bootargs. 3. Current ubuntustudio daily images don't include linux-lowlatency and thus also not lowlatency-kernel. This is likely an ubuntustudio seed issue. 4. The ISO kernel is now also the generic kernel and as such it needs the bootargs to make it lowlatency. The above grub configs don't help in this case since the installer code in debian-cd has the bootargs for the ISO kernel hard coded. See https://bugs.launchpad.net/ubuntu/+source/lowlatency- kernel/+bug/2119012/comments/26 + + This was fixed in Noble: + https://git.launchpad.net/~ubuntu-cdimage/debian-cd/+git/ubuntu/commit/?id=69635ea048f8d62e701babdfbb306c12107fab2d -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2120916 Title: Don't provide grub config and don't sort the boot kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntustudio-default-settings/+bug/2120916/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
