From: Kenneth Goodwin <kennethgoodwin56@gmail.com>
To: Paul Ruizendaal <pnr@planet.nl>
Cc: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: [TUHS] Re: Origins of the frame buffer device
Date: Sun, 5 Mar 2023 13:25:23 -0500 [thread overview]
Message-ID: <CAMQbRb1C=Fi79-PRVhp6=CzTv8fUZwDLhT0VcgZGKkrvRDkb_g@mail.gmail.com> (raw)
In-Reply-To: <A2FD3A10-A593-4A6E-8736-444D78F0CAD2@planet.nl>
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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@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
>
>
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next prev parent reply other threads:[~2023-03-05 18:25 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-05 15:01 [TUHS] " Paul Ruizendaal via TUHS
2023-03-05 17:29 ` [TUHS] " Grant Taylor via TUHS
2023-03-05 18:25 ` Kenneth Goodwin [this message]
2023-03-06 8:51 ` Paul Ruizendaal via TUHS
2023-03-06 8:57 ` Rob Pike
2023-03-06 11:09 ` Henry Bent
2023-03-06 16:02 ` Theodore Ts'o
2023-03-06 22:47 ` Paul Ruizendaal via TUHS
2023-03-06 23:10 ` Rob Pike
2023-03-08 12:53 ` Paul Ruizendaal
2023-03-08 14:23 ` Dan Cross
2023-03-08 15:06 ` Paul Ruizendaal
2023-03-08 19:35 ` Dan Cross
2023-03-08 16:55 ` Theodore Ts'o
2023-03-08 17:46 ` Clem Cole
2023-03-08 17:45 ` Clem Cole
2023-03-08 18:12 ` segaloco via TUHS
2023-03-08 18:21 ` Larry McVoy
2023-03-08 18:43 ` Kenneth Goodwin
2023-03-08 18:45 ` Steffen Nurpmeso
2023-03-08 22:44 ` Clem Cole
2023-03-09 14:42 ` Paul Winalski
2023-03-06 23:20 ` segaloco via TUHS
2023-03-07 1:24 ` Kenneth Goodwin
2023-03-08 3:07 ` Rob Gingell
2023-03-08 12:51 ` Paul Ruizendaal via TUHS
2023-03-08 13:05 ` Warner Losh
2023-03-08 13:17 ` Arno Griffioen via TUHS
2023-03-07 1:54 ` Kenneth Goodwin
2023-03-05 18:52 Noel Chiappa
2023-03-05 20:43 ` Rob Pike
2023-03-06 10:43 ` Jonathan Gray
2023-03-07 1:21 ` Kenneth Goodwin
2023-03-08 5:43 ` Lars Brinkhoff
2023-03-09 23:24 ` emanuel stiebler
2023-03-10 1:44 ` Lawrence Stewart
2023-03-06 23:16 Norman Wilson
2023-03-06 23:24 ` Larry McVoy
2023-03-07 12:08 ` arnold
2023-03-07 16:42 ` Theodore Ts'o
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