1 =================
2 What is aty128fb?
3 =================
4
5 .. [This file is cloned from VesaFB/matroxfb]
6
7 This is a driver for a graphic framebuffer for
8 on Intel and PPC boxes.
9
10 Advantages:
11
12 * It provides a nice large console (128 cols
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... bu
20 if you use same resolution as you used in t
21 * still experimental.
22
23
24 How to use it?
25 ==============
26
27 Switching modes is done using the video=aty12
28 boot parameter or using `fbset` program.
29
30 See Documentation/fb/modedb.rst for more infor
31 resolutions.
32
33 You should compile in both vgacon (to boot if
34 box) and aty128fb (for graphics mode). You sho
35 unless you have primary display on non-Rage128
36 Documentation/fb/vesafb.rst for details).
37
38
39 X11
40 ===
41
42 XF68_FBDev should generally work fine, but it
43 this document, 8 and 32bpp works fine. There
44 when switching from X to console and back to X
45 X to fix this.
46
47
48 Configuration
49 =============
50
51 You can pass kernel command line options to ve
52 `video=aty128fb:option1,option2:value2,option3
53 be separated by comma, values are separated fr
54 Accepted options:
55
56 ========= ====================================
57 noaccel do not use acceleration engine. It i
58 accel use acceleration engine. Not finishe
59 vmode:x chooses PowerMacintosh video mode <x
60 cmode:x chooses PowerMacintosh colour mode <
61 <XxX@X> selects startup videomode. See modedb
62 explanation. Default is 640x480x8bpp
63 ========= ====================================
64
65
66 Limitations
67 ===========
68
69 There are known and unknown bugs, features and
70 Currently there are following known bugs:
71
72 - This driver is still experimental and is no
73 bugs/errata to list here.
74
75 Brad Douglas <brad@neruo.com>
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