8-bit color frame buffer
cgthree* at sbus?
wsdisplay* at cgthree?
cgthree is an SBus color frame
cgthree driver interfaces the frame
buffer with the wscons(4) console framework. It does not provide direct device driver
entry points but makes its functions available via the internal
cgthree frame buffer is used as the
console display, it is possible, for some models, to select a different
resolution than the default 1152x900 or 1024x768 by changing the OpenPROM
environment. To change the default resolution, type the following:
ok setenv output-device screen:r1152x900x66
to change to a 66Hz 1152x900 resolution.
cgthree frame buffer
is a secondary display, or a serial console is used, the display resolution
cannot be changed without using an
script. Refer to the
Sun Frame Buffer
FAQ for details.
cgthree frame buffer accepts the
- Super VGA 1024x768, with a refresh rate of 77Hz. This is the default setting on model 501-2691.
- Standard 1152x900, with a refresh rate of 66Hz. This is the default setting on older models (501-1415 and 501-8044).
- Standard 1152x900, with a refresh rate of 76Hz. This is the default setting on more recent models (501-1718 and 501-1909).
Note that not all models support settings other than their default setting.
intro(4), sbus(4), wscons(4), wsdisplay(4)
Sun Frame Buffer FAQ, http://www.sunhelp.org/faq/FrameBuffer.html.