Article View: comp.sys.sun.hardware
Article #3198Re: new frame buffer card/monitor no sync
From: Robert Bonomi
Date: Sun, 16 Mar 1997 00:00
Date: Sun, 16 Mar 1997 00:00
65 lines
3480 bytes
3480 bytes
In article <E72A9x.6BA.0.hotlips@GTS.Net>, Bruce Becker <bdb@GTS.Net> wrote:
>In article <5g9obg$c86$1@wave.znet.com>, Jack Bailey <jjb@wave.zNET.com> wrote:
>|In article <5g7dqr$g3m@godzilla.zeta.org.au>,
>|Craig Dewick <craig@zeta.org.au> wrote:
>|>In <5g73mo$atv$1@wave.znet.com> jjb@wave.zNET.com (Jack Bailey) writes:
>|>
>|>>I put a new (different) frame buffer card in a sparc 2 and now the
>|>>monitor doesn't sync. It's a sun card, although I can't find a model
>|>>number for it. I've tried two 17" sun color monitors and a sun
>|>>monochrome monitor. Any ideas on how to get it working?
>|>
>|>Another possibility is that depending on what you were using originally,
>|>and what you've installed now, the kernel you are running (if it's not a
>|>generic kernel, and you are running SunOS 4.1.x instead of SunOS 5.x.x)
>|>may not be configured to include support for the type of framebuffer you
>|>now have.
>|
>|There are no drives attached. I'm just trying to get to firmware.
>|
>|>Another possibility which I've only seen once is that the combination of
>|>framebuffer and monitor may not be using compatible 'sense' signals, or
>|>the video cable may not include wires for the sense signals. I've found
>|>this once when trying a Sun 16" colour montior with a non-Sun (known
>|>working) video cable. As soon as I switched to a Sun-badged video lead,
>|>everything worked, and the only thing I could think of was the non-sun
>|>lead didn't carry the sense signals through.
>|
>|All the parts are original sun parts.
>|
>|>Can you give us the Sun part numbers (501-xxxx) of the two framebuffers?
>|>These will help to identify what you have.
>|
>|Yes, the card is 501-1481018087 -01REV.52. Another tag has SL7733 on it.
^^
EUREKA!
This is a 'rev 1' version of the card. It doesn't know how to cope with
'modern' monitors.
The "work around" -- unplug the cable from the card, power _up_ the system,
wait 30 seconds, plug the video cable back in.
>|The connector is labeled DBML-13W3SAG-21L9.
>
>
> That is a standard CG6 double-width Sbus 8-bit
> Color Framebuffer - it has only one raster size,
> 1152X900 61.8KHz horiz., 66 Hz. vert.
>
>
> Your color monitors may be multisync such as Sony
> GDM-1962, or they may sync at 71.7KHz, 76 Hz. if
> they are newer models. The Multisync monitors
> _should_ work, but expect surprises with older
> frambuffer revisions. Try unplugging the monitor
> after the system seems to be up, then plug it
> back in again.
>
>
>--
> ,u, Bruce Becker Toronto, Ontario 1 416 699 1868
>a /i/ Internet: bdb@gts.org Uucp: ...!gts!bdb
> `\o\-e Matter cannot be created or destroyed, nor can it
> _< /_ be returned without a receipt - physicists everywhere
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f4671,647a0bb0abaa2501 X-Google-Attributes: gidf4671,public X-Google-Thread: 10d053,82e7371719c372f7 X-Google-Attributes: gid10d053,public From: bonomi@ece.nwu.edu (Robert Bonomi) Subject: Re: new frame buffer card/monitor no sync Date: 1997/03/16 Message-ID: <5gg6cp$kdl$1@news.ece.nwu.edu> X-Deja-AN: 225956943 Distribution: inet References: <5g73mo$atv$1@wave.znet.com> <5g7dqr$g3m@godzilla.zeta.org.au> <5g9obg$c86$1@wave.znet.com> <E72A9x.6BA.0.hotlips@GTS.Net> Organization: EE/CS Department, Northwestern University, Evanston, IL. Newsgroups: comp.sys.sun.hardware,aus.computers.sun