You may try passing reboot=bios on the kernel command line, please check if with it the reboot works. Some Dell machines require this and have quirks on kernel.
While on it, also please test these parameters to give to reboot= and report if they work or not: acpi triple pci If it's a regression, please tell which kernel worked, and see if with newer upstream kernels it works again, you can follow directions on https://wiki.ubuntu.com/KernelMainlineBuilds and install a newer kernel on your system to check. ** Changed in: linux (Ubuntu Lucid) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/613902 Title: [Lucid 10.04.1] Dell Inspiron 1146 does not restart -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
