Linux X.Org driver
This chip is not supported by X.org, the best you can get is 640x480 with 16 colors with the 'vga' driver as part of the X.Org distribution
Linux XFree86 driver
XFree86 3.3.6 was the last version to support this chip with the 'svga' driver.
Display on the internal LCD works as long as you set the monitor settings correct.
External VGA port
Linux kernel Framebuffer driver