Same hardware (Lenovo 750p), same fix, same problem with the fix (battery detection). Oh well.
To test the fix, I pressed E in grub and added acpi=noirq after "quiet splash".
To make the fix permanent, I went ot the line that said
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
in /etc/default/grub and edit it to look like
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=noirq"
Same hardware (Lenovo 750p), same fix, same problem with the fix (battery detection). Oh well.
To test the fix, I pressed E in grub and added acpi=noirq after "quiet splash".
To make the fix permanent, I went ot the line that said
GRUB_ CMDLINE_ LINUX_DEFAULT= "quiet splash"
in /etc/default/grub and edit it to look like
GRUB_ CMDLINE_ LINUX_DEFAULT= "quiet splash acpi=noirq"