Q The text mode of Knoppix sets the display to 132 columns, but I prefer the standard 80x25 layout, which suits a smaller monitor. Is this controlled by the kernel or by a program; and how do I change it, please?
A Knoppix used the kernel framebuffer for its video, including the console. Pass a vga=normal to the boot prompt if you want a standard console. Go to Knoppix's Help screen for other resolutions, or refer to the table at www.desktop-linux.net/framebuffer.htm for a variety of common resolutions. There is a selection of boot options for the Knoppix distribution, and there are several help screens accessible prior to booting the kernel that list all of the possible arguments you can use.