diff options
| author | Andres Salomon <dilinger@queued.net> | 2008-04-28 02:15:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 08:58:39 -0700 |
| commit | c805df3d6205573fa7a8ef2334b1c8d67381dc8b (patch) | |
| tree | 9cdf231771e48460fbacedb16f8ec8465850f742 /Documentation/fb/lxfb.txt | |
| parent | f694e53bd0db69557ee8e0db2d1602818ff173b0 (diff) | |
lxfb: rename kernel arg fbsize to vram
Match other fb drivers (including gxfb). Also, document the current boot
arguments in Documentation/fb/lxfb.txt.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/fb/lxfb.txt')
| -rw-r--r-- | Documentation/fb/lxfb.txt | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/fb/lxfb.txt b/Documentation/fb/lxfb.txt new file mode 100644 index 00000000000..80656078d4d --- /dev/null +++ b/Documentation/fb/lxfb.txt @@ -0,0 +1,50 @@ +[This file is cloned from VesaFB/aty128fb] + +What is lxfb? +================= + +This is a graphics framebuffer driver for AMD Geode LX based processors. + +Advantages: + + * No need to use AMD's VSA code (or other VESA emulation layer) in the + BIOS. + * 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 :-) + +Disadvantages: + + * graphic mode is slower than text mode... + + +How to use it? +============== + +Switching modes is done using lxfb.mode_option=<resolution>... boot +parameter or using `fbset' program. + +See Documentation/fb/modedb.txt for more information on modedb +resolutions. + + +X11 +=== + +XF68_FBDev should generally work fine, but it is non-accelerated. + + +Configuration +============= + +You can pass kernel command line options to lxfb with lxfb.<option>. +For example, lxfb.mode_option=800x600@75. +Accepted options: + +mode_option - specify the video mode. Of the form + <x>x<y>[-<bpp>][@<refresh>] +vram - size of video ram (normally auto-detected) + +-- +Andres Salomon <dilinger@debian.org> |