Sorry to hear it's still broken. If it's not working on mainline, it's probably not something Ubuntu engineers will be able to address, since we aren't the maintainers of the upstream kernel and don't have the necessary hardware to reproduce the issue.
Our pre-built mainline kernels are a few updates behind the real master branch of the tree, so if you choose to report this with the upstream maintainers you will want to build the very latest to ensure you haven't missed any fixes. For x86 bugs, that would be this tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git Instructions for installing a kernel built this way are available here: https://wiki.ubuntu.com/KernelTeam/GitKernelBuild Where it says "clone the mainline kernel git tree" you'll instead clone git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git We have a general guide on upstream bug reporting here: https://wiki.ubuntu.com/Bugs/Upstream/kernel Although you may just prefer to report it via https://bugzilla.kernel.org/ That being said, I'm attaching a patch that might effectively do the same thing as `reboot=pci`, but like I said, I don't have the hardware to test it with, so this should be considered a shot in the dark debug patch. If you want to try it, you will have to apply the patch to the linux tree you cloned, change the version string in the kernel config, and rebuild the kernel and install it. ** Patch added: "0001-x86-reboot-Add-HP-EliteBook-Folio-9480m-PCI-reboot-q.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2137423/+attachment/5938383/+files/0001-x86-reboot-Add-HP-EliteBook-Folio-9480m-PCI-reboot-q.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2137423 Title: reboot=pci required for HP EliteBook Folio 9480m To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2137423/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
