1[This file is cloned from VesaFB/aty128fb] 2 3What is gxfb? 4================= 5 6This is a graphics framebuffer driver for AMD Geode GX2 based processors. 7 8Advantages: 9 10 * No need to use AMD's VSA code (or other VESA emulation layer) in the 11 BIOS. 12 * It provides a nice large console (128 cols + 48 lines with 1024x768) 13 without using tiny, unreadable fonts. 14 * You can run XF68_FBDev on top of /dev/fb0 15 * Most important: boot logo :-) 16 17Disadvantages: 18 19 * graphic mode is slower than text mode... 20 21 22How to use it? 23============== 24 25Switching modes is done using gxfb.mode_option=<resolution>... boot 26parameter or using `fbset' program. 27 28See Documentation/fb/modedb.txt for more information on modedb 29resolutions. 30 31 32X11 33=== 34 35XF68_FBDev should generally work fine, but it is non-accelerated. 36 37 38Configuration 39============= 40 41You can pass kernel command line options to gxfb with gxfb.<option>. 42For example, gxfb.mode_option=800x600@75. 43Accepted options: 44 45mode_option - specify the video mode. Of the form 46 <x>x<y>[-<bpp>][@<refresh>] 47vram - size of video ram (normally auto-detected) 48vt_switch - enable vt switching during suspend/resume. The vt 49 switch is slow, but harmless. 50 51-- 52Andres Salomon <dilinger@debian.org> 53