1 ============= 1 =============
2 What is lxfb? 2 What is lxfb?
3 ============= 3 =============
4 4
5 .. [This file is cloned from VesaFB/aty128fb] 5 .. [This file is cloned from VesaFB/aty128fb]
6 6
7 7
8 This is a graphics framebuffer driver for AMD 8 This is a graphics framebuffer driver for AMD Geode LX based processors.
9 9
10 Advantages: 10 Advantages:
11 11
12 * No need to use AMD's VSA code (or other VES 12 * No need to use AMD's VSA code (or other VESA emulation layer) in the
13 BIOS. 13 BIOS.
14 * It provides a nice large console (128 cols 14 * It provides a nice large console (128 cols + 48 lines with 1024x768)
15 without using tiny, unreadable fonts. 15 without using tiny, unreadable fonts.
16 * You can run XF68_FBDev on top of /dev/fb0 16 * You can run XF68_FBDev on top of /dev/fb0
17 * Most important: boot logo :-) 17 * Most important: boot logo :-)
18 18
19 Disadvantages: 19 Disadvantages:
20 20
21 * graphic mode is slower than text mode... 21 * graphic mode is slower than text mode...
22 22
23 23
24 How to use it? 24 How to use it?
25 ============== 25 ==============
26 26
27 Switching modes is done using lxfb.mode_optio 27 Switching modes is done using lxfb.mode_option=<resolution>... boot
28 parameter or using `fbset` program. 28 parameter or using `fbset` program.
29 29
30 See Documentation/fb/modedb.rst for more infor 30 See Documentation/fb/modedb.rst for more information on modedb
31 resolutions. 31 resolutions.
32 32
33 33
34 X11 34 X11
35 === 35 ===
36 36
37 XF68_FBDev should generally work fine, but it 37 XF68_FBDev should generally work fine, but it is non-accelerated.
38 38
39 39
40 Configuration 40 Configuration
41 ============= 41 =============
42 42
43 You can pass kernel command line options to lx 43 You can pass kernel command line options to lxfb with lxfb.<option>.
44 For example, lxfb.mode_option=800x600@75. 44 For example, lxfb.mode_option=800x600@75.
45 Accepted options: 45 Accepted options:
46 46
47 ================ ============================= 47 ================ ==================================================
48 mode_option specify the video mode. Of t 48 mode_option specify the video mode. Of the form
49 <x>x<y>[-<bpp>][@<refresh>] 49 <x>x<y>[-<bpp>][@<refresh>]
50 vram size of video ram (normally a 50 vram size of video ram (normally auto-detected)
51 vt_switch enable vt switching during su 51 vt_switch enable vt switching during suspend/resume. The vt
52 switch is slow, but harmless. 52 switch is slow, but harmless.
53 ================ ============================= 53 ================ ==================================================
54 54
55 Andres Salomon <dilinger@debian.org> 55 Andres Salomon <dilinger@debian.org>
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