Recently, I manually shut down the computer while running SimCity 4 Deluxe. Upon booting, the computer froze up at "toshiba_acpi Toshiba Extras." I then added "acpi=off" into grub.cfg to allow me to boot into Linux Mint. Battery information like power and temperature were not shown on the battery meter. As the only option I could think of, I blacklisted the line "toshiba_acpi." After that, I noticed that whatever I inserted into the usb ports could not be detected in Mint or Bios. I completely dismantled the computer to replug the USB connection to the motherboard, but that didn't help. I now think that the manual shutdown resulted in a power surge, causing the usb ports to fail, which made booting freeze up at "toshiba_acpi." How can I fix it, I've tried everything?
If you need more information, just ask; I spent 7 hours working on this =(. I have a Toshiba Satellite L500D running Linux Mint 13. Motherboard, and all other hardware are FINE, I completely disassembled the computer to replug the connections...
(update: When I connect an optical mouse, the red laser appears; I'm skeptical it was a power surge.)
All help is appreciated, PLMA