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20001031: 20001027: setting 8 bit color on DEC UNIX for GEMPAK

Doug,

Looking at the Xdec manpage, it appears that -vclass will
allow you to set the visuial class.

  -vclass[screen] visual class
      Sets the visual class for the root window of the screen.  Possible
      values are StaticGray, StaticColor, PseudoColor, GrayScale, TrueColor,
      and DirectColor.

If you don't have /etc/dt, then try /usr/dt/config as the directory
(otherwise /usr/lib/X11/config).

The file is Xservers:
#
#     Examples:
#

#     LocalHostName:0   <class> local@console   /usr/bin/X11/X :0 <options>
#     LocalHostName:1   <class> local@none      /usr/bin/X11/X :1 <options>
#     XTerminalName:0   <class> foreign

#
#
#     Note: A "*" in the first field of the entry for a local server 
#           will be expanded to "<hostname>:0" by Dtlogin. This
#           syntax is valid only within this file.
#
############################################################################




   :0   Local local@console /usr/bin/X11/X :0





------------------------------------------------------------------------

You can set vclass above as:

:0   Local local@console /usr/bin/X11/X :0 -vclass0 PseudoColor

Steve Chiswell
Unidata User Support


>From: Doug Hunt <address@hidden>
>Organization: UCAR
>Keywords: 200010312337.e9VNbd415573

>Steve:  Do you have an example configuration file?  I have spent the
>last hour or so scouring the web for some example, but I don't see any. 
>I am running CDE but no file /etc/dt/config exists.
>
>Thanks, 
>
>  Doug
>
>Unidata Support wrote:
>> 
>> Doug,
>> 
>> The default visual ID must be 8 bit pseudocolor for GEMPAK.
>> The configuration for the depth of the X server is generally set in
>> /etc/dt/config or /usr/lib/X11/config (the former if you are running
>> CDE). The man page on X(1) should define the options that may be
>> specified with the server on startup, generall something like -defdepth 8
>> (unless you already are setting it to 16 bits.
>> 
>> Steve Chiswell
>> Unidata User Support
>> 
>> >From: Doug Hunt <address@hidden>
>> >Organization: UCAR
>> >Keywords: 200010272211.e9RMBF419725
>> 
>> >This is a multi-part message in MIME format.
>> >--------------4961A1A35546CF8BB79A4C0F
>> >Content-Type: text/plain; charset=us-ascii
>> >Content-Transfer-Encoding: 7bit
>> >
>> >Hi:  Any help on this would be appreciated.
>> >
>> >Thanks!
>> >
>> >  Doug
>> >
>> >--
>> >address@hidden
>> >Software Engineer III
>> >UCAR - COSMIC
>> >Tel. (303) 497-2611
>> >--------------4961A1A35546CF8BB79A4C0F
>> >Content-Type: message/rfc822
>> >Content-Transfer-Encoding: 7bit
>> >Content-Disposition: inline
>> >
>> >X-Mozilla-Status2: 00000000
>> >Message-ID: <address@hidden>
>> >Date: Thu, 26 Oct 2000 10:26:58 -0600
>> >From: Doug Hunt <address@hidden>
>> >Organization: UCAR
>> >X-Mailer: Mozilla 4.7 [en] (X11; I; Linux 2.2.12-20 i686)
>> >X-Accept-Language: fr
>> >MIME-Version: 1.0
>> >To: address@hidden
>> >Subject: [Fwd: PseudoColors]
>> >Content-Type: multipart/mixed;
>> > boundary="------------1DBF057D34D91931E2BEB0E6"
>> >
>> >This is a multi-part message in MIME format.
>> >--------------1DBF057D34D91931E2BEB0E6
>> >Content-Type: text/plain; charset=us-ascii
>> >Content-Transfer-Encoding: 7bit
>> >
>> >Steve:  I've got a user, So-Young Ha, who took one of your GEMPAK
>> >classes recently.
>> >She has recently installed GEMPAK on one of our DEC alpha UNIX machines,
>> >and it is now failing to open up displays with a message like:  'cannot
>> >allocate colors'.
>> >
>> >She says that you recommended that I set up X11 on this machine to use 8
>> >bit pseudocolor (as reported by xdpyinfo).  The DEC machine is currently
>> >set up for 16 bit truecolor.  I don't know much about X on DECs.  Do you
>> >know how to change this?
>> >
>> >Thanks much,
>> >
>> >  Doug Hunt
>> >
>> >--
>> >address@hidden
>> >Software Engineer III
>> >UCAR - COSMIC
>> >Tel. (303) 497-2611
>> >--------------1DBF057D34D91931E2BEB0E6
>> >Content-Type: message/rfc822
>> >Content-Transfer-Encoding: 7bit
>> >Content-Disposition: inline
>> >
>> >Return-Path: <address@hidden>
>> >Received: from fl-phx.ucar.EDU by mail.cosmic.ucar.EDU (8.9.3/ NCAR Mail Se
> rve
>> > r 04/10/90)
>> >       id QAA13378; Wed, 25 Oct 2000 16:26:14 -0600
>> >Received: from mail.cosmic.ucar.EDU (address@hidden [128.117.29.
> 215
>> > ])
>> >        by fl-phx.ucar.EDU (NCAR Local 3/10/98/) with ESMTP id QAA08341
>> >        for <address@hidden>; Wed, 25 Oct 2000 16:31:52 -0600 (MDT)
>> >Received: from ucar.edu by mail.cosmic.ucar.EDU (8.9.3/ NCAR Mail Server 04
> /10
>> > /90)
>> >       id QAA13373; Wed, 25 Oct 2000 16:26:13 -0600
>> >Sender: address@hidden
>> >Message-ID: <address@hidden>
>> >Date: Wed, 25 Oct 2000 16:23:18 -0600
>> >From: So Young Ha <address@hidden>
>> >Organization: National Center for Atmospheric Research
>> >X-Mailer: Mozilla 4.61 [en] (X11; U; Linux 2.2.5-15 i686)
>> >X-Accept-Language: en
>> >MIME-Version: 1.0
>> >To: address@hidden
>> >Subject: PseudoColors
>> >Content-Type: text/plain; charset=EUC-KR
>> >Content-Transfer-Encoding: 7bit
>> >
>> >Hi, Doug,
>> >
>> >As you know, I've installed the GEMPAK on athos.
>> >But for executing and viewing the programs, the system should be set as
>> >8 bit colors, as Steve (the Unidata software engineer) said.
>> >Could you please change the system color mode in athos?
>> >He said there's no other problem even though we change the color mode,
>> >but I'm not familiar with the problem.
>> >But I believe you know what the problem and the solution is. - I mean,
>> >how to change and configure the color mode in the system.
>> >Without your help, I don't think I can use GEMPAK. ^^
>> >
>> >Thanks a lot.
>> >
>> >--
>> >*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^
>> > So-Young, Ha
>> > (address@hidden, address@hidden)
>> >
>> > Associate Scientist
>> > COSMIC Project Office (Room # : 3316), UCAR
>> > 3300 Mitchell Lane, Suite 370, FL4
>> > Boulder, CO 80301
>> >
>> > Phone: 303-497-2601
>> > Fax:   303-497-2610
>> >
>> >*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^*^^
>> >
>> >--------------1DBF057D34D91931E2BEB0E6--
>> >
>> >
>> >--------------4961A1A35546CF8BB79A4C0F--
>> >
>> 
>> ****************************************************************************
>> Unidata User Support                                    UCAR Unidata Program
>> (303)497-8644                                                  P.O. Box 3000
>> address@hidden                                   Boulder, CO 80307
>> ----------------------------------------------------------------------------
>> Unidata WWW Service                        http://www.unidata.ucar.edu/     
>> ****************************************************************************
>
>-- 
>address@hidden
>Software Engineer III
>UCAR - COSMIC
>Tel. (303) 497-2611
>