"Brian L. Stuart" <blstuart at bellsouth.net> wrote:
The CG-3 card
that is in it either is not
able to push the 1024x768x77 it's supposed to or not able to
talk to any of my monitors.
My recollection is that the CG3 (and the CG6 as well) is a fixed
rate card for 1152x900x8 at 66Hz.
BLS
Depends a lot on the actual implementation methinks. What may be true for the original
sbus card may well have changed with more modern, integrated versions.
Like I said, the cg3 in a SPARCclassic natively supports at least 1152x900 at 66 and 76 Hz
and 1024x768 at 60, 70 and 77 - I don't know for the SS5, but when you navigate to the
framebuffer node in the OBP prompt (like /iommu at 0,1000000/sbus at 0,10001000/cgthree at
3,0) and do "words" there, anything starting with "r" followed by a
mode description should be a supported mode that you can specify for output-device (like
screen:r1024x768x60, which is what I would try)
Beyond that, there is always the opportunity of hacking an unsupported resolution in by
computing the corresponding numbers and generating a resolution setup word by yourself.
They basically just contain a mode line like "
08,02,37,37,08,155,21,04,39,169,0,7,60,1024,768" (for 1024x768x60) which is a bunch
of setup values that are poked into registers on the framebuffer by the setup FCode.
Arno