Root/
1 | [This file is cloned from VesaFB/aty128fb] |
2 | |
3 | What is gxfb? |
4 | ================= |
5 | |
6 | This is a graphics framebuffer driver for AMD Geode GX2 based processors. |
7 | |
8 | Advantages: |
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 | |
17 | Disadvantages: |
18 | |
19 | * graphic mode is slower than text mode... |
20 | |
21 | |
22 | How to use it? |
23 | ============== |
24 | |
25 | Switching modes is done using gxfb.mode_option=<resolution>... boot |
26 | parameter or using `fbset' program. |
27 | |
28 | See Documentation/fb/modedb.txt for more information on modedb |
29 | resolutions. |
30 | |
31 | |
32 | X11 |
33 | === |
34 | |
35 | XF68_FBDev should generally work fine, but it is non-accelerated. |
36 | |
37 | |
38 | Configuration |
39 | ============= |
40 | |
41 | You can pass kernel command line options to gxfb with gxfb.<option>. |
42 | For example, gxfb.mode_option=800x600@75. |
43 | Accepted options: |
44 | |
45 | mode_option - specify the video mode. Of the form |
46 | <x>x<y>[-<bpp>][@<refresh>] |
47 | vram - size of video ram (normally auto-detected) |
48 | vt_switch - enable vt switching during suspend/resume. The vt |
49 | switch is slow, but harmless. |
50 | |
51 | -- |
52 | Andres Salomon <dilinger@debian.org> |
53 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9