I've bean using Ubuntu, Xubuntu and recently Lubuntu on my desktop and laptop without problems.
I have just installed Lubuntu 15.04 on an old HP nx9005 laptop and it works fine, but it doesn't shut down properly. In fact, it shuts down but doesn't power off.
I've tried many solutions that were suggested on forums with no results.
By the GUI shut down command or by
sudo init 0 or
sudo shutdown -P gives me the same results: It shuts down but doesn't power off.
The two last lines are:
OK Reached target shutdown (number) reboot: Power down
and doesn't trigger power off. The reboot command works fine.
I have tried editing the
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" acpi=force apm=power_off
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash reboot=bios"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash reboot=pci
GRUB_CMLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux"
with no improvements. The power button has no action and computer doesn't enter on suspend mode. Any suggestions?