Tech Source GFX 550e - Manual (Page 34)

GFX 550e Installation and Reference Manual
A-6
For example, to set the console resolution to 1280x1024@76Hz,
type the following:
ok nvedit
0: : video-timing " 1280, 384, 32, 64,
1024, 43, 3, 8, 135000000, 0" ;
1:
ok nvstore
ok setenv use-nvramrc? true
ok reset-all
NOTE: The syntax is very important. The spaces must be
present exactly as they appear in the example.
NOTE: The last three commands enable the NVRAM. Without
these lines, the changes you make with
nvedit
will be ignored.
The following is a brief description of the 10 parameters used in
this method.
• horizontal resolution (in pixels)
• horizontal blanking total
• horizontal front porch
• horizontal sync width
• vertical resolution (in lines)
• vertical blanking total
• vertical front porch
• vertical sync width
• dotclock in Hz
• sync value:
0 separate
sync
256 sync on green
512 positive vertical sync pulse
1024 positive horizontal sync pulse
2048 composite
sync