It was the little things like sound and XFree86 that were problematic. It certainly helped to read the following web pages, as the Portege shares the Libretto's sound chip and uses the common NeoMagic display adapter. Another document like this one. A more general page about Toshiba's full-featured Tecra laptops. This site has sources for Linux utilities that perform the same functions as the Toshiba Windows utilities.
Drivers are available here .
This is Toshiba's Japanese page for the 30x0 series. There are also some movies here . Toshiba also sells these notebooks in Europe. This is their information page. They have a download page here .