Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!ncrlnk!ncr-sd!hp-sdd!hp-pcd!hpcvlx!tomg
From: tomg@hpcvlx.cv.hp.com (Thomas J. Gilg)
Newsgroups: comp.sys.hp
Subject: Re: Setting depth on hp root window (under X)
Message-ID: <101950053@hpcvlx.cv.hp.com>
Date: 6 Oct 89 17:03:47 GMT
References: <34@venice.SEDD.TRW.COM>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 28


> I am using an HP 9000/330 workstation running 7.0 HP-UX with MOTIF window 
> manager.
> 
> I am trying to change the depth of the pixmap for the root window
> from 6 to 8. 

I suspect you have either an HP 9000/319C (a sealed 330), an hp98549 
graphics display card, or an hp98547 graphics display card.  In all
three cases, they are 1024x768 at 6 planes deep (hardware).

> I have tried using xrdb, changing /usr/lib/X11/X0screen to "/dev/crt depth 8"
> and that does not work.  Does anybody have any suggestions.
> 
> Am I trying to change a parameter that is hardware dependent, or is it 
> software configurable?

Its a hardware dependent situation.  For your situation, the following
Xnscreen file entries are allowable:

  /dev/crt                ( defaults to default hardware depth = 6 )
  /dev/crt doublebuffer   ( 3/3 Double buffer )

With some of the other HP display subsystems, several depths are available,
but only as multiples of 8.  Sorry we can't get you up to 8,

 Thomas Gilg
tomg@cv.hp.com