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- From: daifuku@xcedrin.esd.sgi.com (Peter Daifuku)
- Newsgroups: comp.sys.sgi
- Subject: Re: 8 bit vs 24 bit color question.
- Message-ID: <so0414k@zola.esd.sgi.com>
- Date: 23 Nov 92 20:09:38 GMT
- References: <1992Nov21.015223.18065@netcom.com>
- Sender: news@zola.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc.
- Lines: 32
-
- In article <1992Nov21.015223.18065@netcom.com>, jchauvin@netcom.com (John H. Chauvin) writes:
- |>
- |> I recently received a Silicon Graphics Crimson Elan and was under the
- |> impression that this configuration supported 24 bit color. Why is it then that
- |> the default color visual is 8 bit? Can someone explain the difference
- |> between the various visuals? Is it possible to switch between 8 bit and 24
- |> bit color like on the Macintosh?
- |>
- |>
- |> Thanks
- |>
- |> jchauvin@netcom.com
- |>
- |> --
- |> John H. Chauvin jchauvin@netcom.COM
- |> Netcom - Online Communication Services San Jose, CA
-
- Elan graphics do support 24-bit color. Use xdpyinfo for a list of supported
- visuals. By default, the root visual is 8-bit PseudoColor. You can change this
- by editing /usr/lib/X11/xdm/Xservers as root. For example,
-
- :0 secure /usr/bin/X11/X -bs -c -class TrueColor -depth 24
-
- changes the default visual to 24-bit TrueColor. See man Xs for the options for
- Xsgi, and any good X reference for a description of visuals.
-
- Having the default visual be 8-bit PseudoColor does not prevent you from
- running 24-bit TrueColor applications. It's just that an application has to
- request a 24-bit TC visual explicitly to get one.
-
- Peter Daifuku
- daifuku@sgi.com
-