6 Mar
2023
6 Mar
'23
12:25 a.m.
The first frame buffers from Evans and Sutherland were at University of
Utah, DOD SITES and NYIT CGL as I recall.
Circa 1974 to 1978.
They were 19 inch RETMA racks.
Took three to get decent RGB.
8 bits per pixel per FB.
On Sun, Mar 5, 2023, 10:02 AM Paul Ruizendaal via TUHS <tuhs(a)tuhs.org>
wrote:
I am confused on the history of the frame buffer
device.
On Linux, it seems that /dev/fbdev originated in 1999 from work done by
Martin Schaller and Geert Uytterhoeven (and some input from Fabrice
Bellard?).
However, it would seem at first glance that early SunOS also had a frame
buffer device (/dev/cgoneX. /dev/bwoneX, etc.) which was similar in nature
(a character device that could be mmap’ed to give access to the hardware
frame buffer, and ioctl’s to probe and configure the hardware). Is that
correct, or were these entirely different in nature?
Paul