| [This file is cloned from VesaFB/aty128fb] | |
| What is gxfb? | |
| ================= | |
| This is a graphics framebuffer driver for AMD Geode GX2 based processors. | |
| Advantages: | |
| * No need to use AMD's VSA code (or other VESA emulation layer) in the | |
| BIOS. | |
| * It provides a nice large console (128 cols + 48 lines with 1024x768) | |
| without using tiny, unreadable fonts. | |
| * You can run XF68_FBDev on top of /dev/fb0 | |
| * Most important: boot logo :-) | |
| Disadvantages: | |
| * graphic mode is slower than text mode... | |
| How to use it? | |
| ============== | |
| Switching modes is done using gxfb.mode_option=<resolution>... boot | |
| parameter or using `fbset' program. | |
| See Documentation/fb/modedb.txt for more information on modedb | |
| resolutions. | |
| X11 | |
| === | |
| XF68_FBDev should generally work fine, but it is non-accelerated. | |
| Configuration | |
| ============= | |
| You can pass kernel command line options to gxfb with gxfb.<option>. | |
| For example, gxfb.mode_option=800x600@75. | |
| Accepted options: | |
| mode_option - specify the video mode. Of the form | |
| <x>x<y>[-<bpp>][@<refresh>] | |
| vram - size of video ram (normally auto-detected) | |
| vt_switch - enable vt switching during suspend/resume. The vt | |
| switch is slow, but harmless. | |
| -- | |
| Andres Salomon <dilinger@debian.org> |