mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
1.3 KiB
54 lines
1.3 KiB
============= |
|
What is gxfb? |
|
============= |
|
|
|
.. [This file is cloned from VesaFB/aty128fb] |
|
|
|
This is a graphics framebuffer driver for AMD Geode GX2 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 gxfb.mode_option=<resolution>... boot |
|
parameter or using `fbset` program. |
|
|
|
See Documentation/fb/modedb.rst 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 gxfb with gxfb.<option>. |
|
For example, gxfb.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) |
|
vt_switch enable vt switching during suspend/resume. The vt |
|
switch is slow, but harmless. |
|
================ ================================================== |
|
|
|
Andres Salomon <[email protected]>
|
|
|