path: root/Documentation/fb/aty128fb.txt
diff options
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/fb/aty128fb.txt
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'Documentation/fb/aty128fb.txt')
1 files changed, 72 insertions, 0 deletions
diff --git a/Documentation/fb/aty128fb.txt b/Documentation/fb/aty128fb.txt
new file mode 100644
index 000000000000..069262fb619d
--- /dev/null
+++ b/Documentation/fb/aty128fb.txt
@@ -0,0 +1,72 @@
+[This file is cloned from VesaFB/matroxfb]
+What is aty128fb?
+This is a driver for a graphic framebuffer for ATI Rage128 based devices
+on Intel and PPC boxes.
+ * 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 :-)
+ * graphic mode is slower than text mode... but you should not notice
+ if you use same resolution as you used in textmode.
+ * still experimental.
+How to use it?
+Switching modes is done using the video=aty128fb:<resolution>... modedb
+boot parameter or using `fbset' program.
+See Documentation/fb/modedb.txt for more information on modedb
+You should compile in both vgacon (to boot if you remove your Rage128 from
+box) and aty128fb (for graphics mode). You should not compile-in vesafb
+unless you have primary display on non-Rage128 VBE2.0 device (see
+Documentation/fb/vesafb.txt for details).
+XF68_FBDev should generally work fine, but it is non-accelerated. As of
+this document, 8 and 32bpp works fine. There have been palette issues
+when switching from X to console and back to X. You will have to restart
+X to fix this.
+You can pass kernel command line options to vesafb with
+`video=aty128fb:option1,option2:value2,option3' (multiple options should
+be separated by comma, values are separated from options by `:').
+Accepted options:
+noaccel - do not use acceleration engine. It is default.
+accel - use acceleration engine. Not finished.
+vmode:x - chooses PowerMacintosh video mode <x>. Depreciated.
+cmode:x - chooses PowerMacintosh colour mode <x>. Depreciated.
+<XxX@X> - selects startup videomode. See modedb.txt for detailed
+ explanation. Default is 640x480x8bpp.
+There are known and unknown bugs, features and misfeatures.
+Currently there are following known bugs:
+ + This driver is still experimental and is not finished. Too many
+ bugs/errata to list here.
+Brad Douglas <brad@neruo.com>