1 =============
2 What is gxfb?
3 =============
4
5 .. [This file is cloned from VesaFB/aty128fb]
6
7 This is a graphics framebuffer driver for AMD
8
9 Advantages:
10
11 * No need to use AMD's VSA code (or other VES
12 BIOS.
13 * It provides a nice large console (128 cols
14 without using tiny, unreadable fonts.
15 * You can run XF68_FBDev on top of /dev/fb0
16 * Most important: boot logo :-)
17
18 Disadvantages:
19
20 * graphic mode is slower than text mode...
21
22
23 How to use it?
24 ==============
25
26 Switching modes is done using gxfb.mode_optio
27 parameter or using `fbset` program.
28
29 See Documentation/fb/modedb.rst for more infor
30 resolutions.
31
32
33 X11
34 ===
35
36 XF68_FBDev should generally work fine, but it
37
38
39 Configuration
40 =============
41
42 You can pass kernel command line options to gx
43 For example, gxfb.mode_option=800x600@75.
44 Accepted options:
45
46 ================ =============================
47 mode_option specify the video mode. Of t
48 <x>x<y>[-<bpp>][@<refresh>]
49 vram size of video ram (normally a
50 vt_switch enable vt switching during su
51 switch is slow, but harmless.
52 ================ =============================
53
54 Andres Salomon <dilinger@debian.org>
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