HDTenEightyP/NetNews huggingface dataset:
From: panisset@lightning.mcrcim.mcgill.edu (Jean-Francois Panisset)
Subject: Is genlock standard?
Organization: McGill Research Centre for Intelligent Machines
Date: Wed, 14 Oct 92 21:27:01 GMT


Here's something I have not been able to figure out. Both my 4D/30s and
my Indigos XS/24 have a BNC connector labeled "GenLock" at the back.
What I want to do is to generate Composite NTSC output. From the setmon
man page, I read that:

          To get composite video output from your IRIS-4D, you may choose to
          purchase an encoder option such as the CG3 or BVO (which encodes the
          525 or 625 component RGB formats into true NTSC and PAL
          respectively), or you may choose to purchase a video peripheral
          product (such as VideoFramer or VideoCreator) which provide
          composite output from an external frame buffer.

Now, I already have two boxes here, one labelled "Color Encoder" and another
one labelled "Sync Pulse Generator". If I issue the command:

setmon NTSC

I get NTSC RGB output. I can then feed this into my boxes and generate
NTSC composite, but since the sync pulse generator has to try to sync with
the video output of the SGI, things are not very stable as far as color
is concerned (everything works great for black and white, of course).

So the question is the following: is the GenLock connector connected to
anything, or is it just there in case you add some other board?
If it is connected, could I feed some sync signal into the connector
and expect the IRIS to sync up to it?
My 4D/30s already have a second Ethernet board in their VME slot, so I'm
out of luck as far as adding the "SGI GenLock" board is concerned, and
as far as I know SGI still doesn't make anything for the Indigo XS24.

Thanks in advance to all SGI video gurus out there!

JF
-- 
Jean-Francois Panisset                    
INET: panisset@mcrcim.mcgill.ca            
      panisset@larry.mcrcim.mcgill.edu
UUCP: ...!mcgill-vision!panisset
From: crosson@cam.nist.gov (Robert Crosson)
Newsgroups: comp.sys.sgi
Subject: Re: Suggestion for subgroup to comp.sys.sgi
Date: 16 Oct 92 13:12:50 GMT
Distribution: usa
Organization: National Institute of Standards and Technology

In article <9873@fs3.cam.nist.gov>, crosson@cam.nist.gov (Robert Crosson) writes:
|> I'd like to throw my two cents into the plans for subdividing
|> comp.sys.sgi.  I am a new user and a new reader of this group.
|> I just scanned ~350 messages and saw none on SGI's network
|> monitoring software, NetVisualizer.  Being a new user I have
|> questions and occasionally problems with the product.  I would
|> like to see comp.sys.sgi.net-vis or an equivalent.
|> 
|> Bob Crosson
|> crosson@cam.nist.gov

Let me change my statement slightly.  I'd like to see more
exchange of information about NetVisualizer and a subgroup to
accommodate the exchange without bothering uninterested readers.

Bob Crosson
From: wilkins@dime (Tim Wilkinson)
Newsgroups: comp.sys.sgi
Subject: Re: How to get CPU % utilization?
Date: 15 Oct 92 12:03:29 GMT
X-Newsreader: Tin 1.1 PL5

Rindress MacDonald (rindress@ctron.com) wrote:
> 
> 
>   The subject says most of it.  I am looking for a way to get what percentage
>  of CPU a particular process is using.  Any pointers would be much appreciated.

/usr/sbin/top   and
/usr/sbin/gr_top   

are on my Indigo and will do just that.
From: egaines@bermuda.triangle.sgi.com (egaines)
Newsgroups: comp.sys.sgi
Subject: Re: scsi split on single tower?
Date: 9 Oct 92 12:34:18 GMT
Organization: Silicon Graphics, Inc.

In article <qrrdt84@zuni.esd.sgi.com>, olson@anchor.esd.sgi.com (Dave Olson) writes:
|> In <1b2uqkINNd5i@darkstar.UCSC.EDU> mmcohen@cats.ucsc.edu (Michael M Cohen) writes:
|> | Now that we have the IO3 on our single tower 510vgx,
|> | can the 4 peripheral bays be split between the 2 scsi
|> | controllers?
|> 
|> Yes, it *can* be done.  Whether we support it in terms
|> of providing the right cabling solutions, I doubt.  I'm
|> a bit out of touch with just what the cabling looks like
|> on the Crimson though, so I could be wrong.
Yeah, the cabling's there.  I've done it myself.  Essentially, you pull a 
jumper cable (the gray one you see in the cable tray when you open the 
door panel and then reroute some ribbon cables inside the machine.  CSD
has a little 3 or 4 page illustrated set of instructions for doing the
job (else I would have fried my hardware-incompetent self).
From: mds@sgi.com (Mark Stadler)
Newsgroups: comp.sys.sgi
Subject: Re: gexit() crashing and burning
Date: 10 Oct 92 23:19:16 GMT
Organization: Silicon Graphics, Inc.
NNTP-Posting-Host: mds.asd.sgi.com

In article <32980@adm.brl.mil> zsd@axe.drea.dnd.ca (Jim Diamond) writes:
>sighup() is defined as follows:
>sighup()
>{
>    drawmode(OVERDRAW);
>    fullscrn();
>    Colour(0);
>    clear();
>    exit(0);
>}
>
>and I call
>
>    signal(SIGHUP, sighup);
>
>at the start of the graphics procedure.
>
>
>Can anyone tell me why
>1) gexit() is hanging, apparently in "_libX_ftruncate" until I send a
>   SIGHUP to the process, and
>2) having called sighup() which calls "drawmode()", should this really
>   cause a coredump?  Not that I'm complaining, since that allowed me to
>   find out (I think!) where the program was hanging up.
>

never attempt to perform graphics from a signal routine.
it CANNOT work reliably.

your mainline program is in effect, sending a token and data
stream into the graphics pipeline.  the order of the stream
is very important.  now if a signal routine preempts your mainline
while executing GL code, and it attempts to do graphics, the
signal routine can corrupt the data stream to the graphics.

i would simplify the signal routines to set a flag that is checked
in your main event loop.


--
-- mds	[aka Mark D Stadler  mds@sgi.com  ...!uunet!sgi!mds  (415)335-1327]
Newsgroups: comp.sys.sgi
From: andreas@awstar.rus.uni-stuttgart.de (Andreas Wierse)
Subject: Re: setmon 72HZ ?
Organization: Visualization Group Comp.Center (RUS) U of Stuttgart, FRG
Date: Wed, 14 Oct 1992 17:56:13 GMT

In article <33070@adm.brl.mil> john@sg25.aud.temple.edu (John W. Schwegler) writes:
>
>Hello folks!
>
>I've heard (I don't remember where) that XS24/Elan graphics had support for
>a 72 Hz refresh rate, and that rate is listed in /usr/include/sys/gr2.h, I
>think. setmon also accepts 'setmon 72HZ' without complaint, but does not
>appear to change the refresh rate (when checked using an oscilloscope).
>
>Is 72 Hz really supported, or is this just waiting around for later use?

These lines are actually written on an XS24 with a 72 HZ monitor. So it
surely is possible :-) (the monitor is not able to display at any other
refresh rate than 72 HZ, a little bit annoying, when You boot or kill
Xsgi :-( ).
For maintenance purposes I take the monitor of one of my poor 60 Hz
colleagues :-).
Maybe the oscilloscope doesn't show a change because the Indigo waits
for some reaction on the other side ?

BTW: when will the new PROMs that support the 72 HZ in the PROM monitor
be available?

Greetings

Andreas
-- 
 Andreas Wierse              | Institute for Computerapplications II
                             | Dep. Computersimulation and Visualization
 wierse@rus.uni-stuttgart.de | Computer Center University of Stuttgart
 Tel.: ++49-711-685-5796     | Allmandring 30
 Fax:  ++49-711-682357       | D-7000 Stuttgart 80     Germany
Newsgroups: comp.sys.sgi
From: casper@fwi.uva.nl (Casper H.S. Dik)
Subject: Re: chown and symbolic links
Organization: FWI, University of Amsterdam
Date: Wed, 7 Oct 1992 20:46:35 GMT

blbates@aero36.larc.nasa.gov (Brent L. Bates ViGYAN AAD/TAB) writes:


>     Recently our system administrator changed all our user ids, this was so
>each user would have the same id on all machines.  He used chown -R to change
>the uid on each users home directory.  Everything seemed ok, however, when I
>was doing a long listing of a directory, I notice that the ownership of NONE
>of the symoblic links had changed.  We couldn't find any way of changing the
>ownership of symbolic links.  Is this a bug, or a feature?!  I CAN delete the
>symbolic links and then recreate them, but, I have quite a few of them and
>would prefer a better way.  Thanks.

The ownership and mode of a symoblic links were not important 
before there where sticky directories. Chown always followed
the symbolic link, chmod never did. In 4.0.0 SGI changed this and
made chown follow symlinks. I'm not sure whether you'd want that,
especially with a chown -R on a user directory.

SunOS still chowns symlinks, but SunOS retore doesn't restore
the ownership.

Anyway, the only time the ownership of a symlink is important
is when it's in a sticky directory. You can't remove it if
you don't own it, in that case.

Casper

Newsgroups: comp.sys.sgi
From: horne@physics.su.OZ.AU (Geoff Horne)
Subject: looking for imgtools
Organization: School of Physics, University of Sydney, Australia
Date: Thu, 8 Oct 1992 02:49:57 GMT


I'm looking for some image tools:
what I need is the following:

nullimg - our 4Dgifts is missing this,

anything that can alter the dpi of an image
anything that can modify the bits/pixel of an image

if anyone has any such or knows where to find them, mail me.
--


-----------------------------------------------------------------------------
        Geoff Horne               |      Egotism is the anesthetic that
  horne@suphys.physics.su.oz.au   |       dulls the pain of stupidity
-----------------------------------------------------------------------------
From: simon@lia.di.epfl.ch (Simon Leinen)
Newsgroups: comp.sys.sgi
Subject: Re: Bug in SGI's malloc?
Date: 14 Oct 92 10:34:21 GMT
	<Oct13.182113.66166@yuma.ACNS.ColoState.EDU>
	<1992Oct13.190027.4398@sol.ctr.columbia.edu>
Organization: DI-LIA -- Ecole Polytechnique Federale de Lausanne
In-reply-to: shenkin@still3.chem.columbia.edu's message of 13 Oct 92 19:00:27 GMT
X-Md4-Signature: f7b504f228966bca50775642620f2bc5

In article <1992Oct13.190027.4398@sol.ctr.columbia.edu>
shenkin@still3.chem.columbia.edu (Peter Shenkin) writes:

   However, the signal sent by the system is a KILL, which cannot be
   trapped;

Yes, it is *really* annoying when Xsgi gets killed because a client
tried to allocate a huge pixmap for backing store and there wasn't
enough memory.
-- 
Simon.
From: HERBER@fnal.fnal.gov (Randolph J. Herber, CD/DCD/USS, x2966)
Newsgroups: comp.sys.sgi
Subject: RE: file size limit (2^31?)
Date: 7 Oct 92 15:10:37 GMT

+From: Claude Cantin <cantin@nrccsb3>
+Newsgroups: comp.sys.sgi
+Subject: file size limit (2^31?)
+Date: 5 Oct 92 19:39:43 GMT

+some of my users are running programs requiring HUGE files.  I have installed
+2 Elite 2 drives, and stripped them together to make a 4GB filesystem.

+It seems the largest file size we can create is 2147483647 characters (that's
+from ls -l command).  This is also 2**31...

+If we try to append to that file, we get the error message:

+   cat: output error (-1/255 characters written)
+   File too large

+Have we reached the file size limit?  Do R4000-based systems have that
+same limit?  Any workaround?

+Thank you for your help,

+      Claude

In a word, yes.

In `man 2 intro', see `27 EFBIG' File too large:
  The size of a file exceeded the per process maximum file size [FILESIZE_MAX].

In /usr/include/limits.h, see `#define FCHR_MAX 2147483647':
  /* max size of a file in bytes */

Consider the following in lseek(2):
  The offset argument to lseek() is off_t.  In /usr/include/sys/types.h,
  type off_t is "signed" long.

The maximum value of a signed long is 2**31-1, the file size limit and the
value you are questioning.

System V Release 4 with Expanded Fundamental Types (EFT) should address your
concern.  off_t may become a `long long'.  Now, if we can just get ANSI C to
understand `long long'.

Randolph J. Herber, herber@fnalf.fnal.gov, +1 708 840 2966
(Speaking for myself and not for US, US DOE, FNAL nor URA.)
(Product, trade, or service marks herein belong to their respective owners.)
From: bergman@proline.cs.unc.edu (Larry Bergman)
Newsgroups: comp.sys.sgi
Subject: changing window title
Date: 13 Oct 92 20:50:02 GMT

Is there a way to change the title in an open window?

Thanks,

Larry Bergman
--
From: yqdx@vax5.cit.cornell.edu
Newsgroups: comp.sys.sgi
Subject: HELP!: No 'unmounted-HD' icon!!!
Date: 16 Oct 92 15:18:30 EDT
Distribution: comp
Organization: Cornell University

Hi-
  I am trying to mount a 2.2 Gb Seagate ST42???N/ND SCSI Hard disk external
to our Indigo-Elan-R4000.  "hinv" shows a disk attached to SCSI unit 5, as
expected.  "fx" lists bad blocks and quotes an appropriate amount of disk
space.
  PROBLEM:  All of the documentation I have for mounting a hard drive to a 
filesystem says to use the "unmounted-HD" icon in the Disks and whatever
utility.  NO SUCH ICON APPEARS.
  The drive is daisy chained with a cd-rom drive.  When I mount and unmount
the CD-ROM its icons chainge appropriately.  The hard-disk acts just the same
when I remove the CD_ROM drive from the chain. (i.e. doesn't show an icon).
  When I open the disks and (files?) utility, the new drive is briefly
accessed, yet no icon appears.  I tried reformatting the new drive, and
still no icon.
  What shall I do? Please overcome your disgust at my naiveness and explain
to me how to mount this drive.  It wouild be a shame for the users to not
be able to use these 2.2 Gigs!  Thanks in advance.  Respond by e-mail.

-Chris B.
yqdx@vax5.cit.cornell.edu

Newsgroups: comp.sys.sgi
From: vjs@rhyolite.wpd.sgi.com (Vernon Schryver)
Subject: Re: SENDMAIL Trouble
Organization: Silicon Graphics, Inc.  Mountain View, CA
Date: Thu, 15 Oct 1992 16:50:09 GMT

In article <1992Oct15.100447@IASTATE.EDU>, ievalts@IASTATE.EDU (John O Ievalts) writes:
> I'm trying to get sendmail to work properly on our
> subnet of Elan workstations running 4.0.5B. After
> manually hacking the sendmail.cf file, I get the
> following message when I try to mail (Mail) to myself
> (root) on the gateway machine:
> 
> router209 12# Trying to create lock file '/usr/mail/root.lock'
> mail: Creation of lockfile failed after 10 tries
> root@router209... unknown mailer error 15
> 
> It is obviously a "rights" (or lack of) problem. But:
> 
>   1)  /usr is "chmoded" 755
>   2)  /usr/mail is "chmoded" 775
>   3)   root.sys owns /usr
>   4)   root.mail owns /usr/mail
>   5)   /usr/mail/:saved is "chmoded" 775 & owned by root.mail
> 
> The messages get delivered to /usr/spool/mqueue okay (temporarily).
> 
> Question 1: who should "own" the local mail process
>             (i.e. mail -s -d root) spawned by sendmail ? 
>             It appears to be guest !!
> 
> Question 2: What determines who owns it ?
> 
> Any suggestions on where to go from here ??


Is /bin/mail "-rwsr-sr- "?
Does `chown root.mail /bin/mail; chmod u+s,g+s /bin/mail` help?


Vernon Schryver,  vjs@sgi.com
From: rck@fangio.asd.sgi.com (Robert Keller)
Newsgroups: comp.sys.sgi
Subject: Re: Can I see 24-bit RGB images/video on a 24-bit SGI using X/MOTIF?
Date: 9 Oct 92 17:35:35 GMT
Organization: Silicon Graphics, Inc., Mountain View, CA
NNTP-Posting-Host: fangio.asd.sgi.com

venkat@vidcom.csc.ti.com (Venkat Venkateswar) writes:
>I am under the
>impression that X is capable of dealing only with 8-bit color information.

Your impression is false.  X can deal with up to 32 bits of colour 
information.  SGI machines that have 24 bit framebuffers can use
X or GL to draw to them.

...robert
From: nicolek@latcs1.lat.oz.au (Nicole KAIYAN)
Newsgroups: comp.sys.sgi
Subject: Great SGI products (Re: Considering getting an SGI ...)
Keywords: SGI
Date: 10 Oct 92 05:03:24 GMT
Organization: Comp Sci, La Trobe Uni, Australia

In article  hunter@phoenix.apana.org.au (James Gardiner) writes:
>
>The new R4000 based pizza box type indigo system that NT will be on
>is suppose to be quite price competetive. I'd support the SGI because
>you buying a piece of REAL hardware.  It can also run IRIX(unix) if you grow
>out of NT. (you could boot up in either OS).
>

Given the progressive nature of software being developed by SGI, like
3D Inventor and amazing graphics boards like the Reality Engine....

Why the need to discuss selling ourselves short by contemplation 
of installing featureless incremental software like Windows NT ????

 --------------------------------- -------------------------------------
| Nicole Kaiyan                   | Email: nicolek@latcs1.lat.oz.au     | 
| Computer Science Department     |                                     | 
| La Trobe University             |        NeXTmail welcome             |
| Melbourne                       |                                     |
| AUSTRALIA                       | Phone: (international)+613 416 2949 |
 --------------------------------- -------------------------------------
Newsgroups: comp.sys.sgi
From: burow@dxcern.cern.ch (Burkhard Burow)
Subject: trouble with dd and exabytes
Organization: CERN European Laboratory for Particle Physics
Date: Fri, 9 Oct 1992 19:46:51 GMT


We're having trouble using dd to read/write to some exabyte drives. 

e.g. on IRIX Release 4.0.4 System V z [a Crimson]

z> dd if=/dev/mt/tps1d3nrnsv bs=3600 of=/dev/null
dd: read error: I/O error
0+0 records in
0+0 records out

where: 
z> mt -t /dev/mt/tps1d3nrnsv stat
        Controller: SCSI
        Device: EXABYTE: EXB-8500 MTBanx00428
        Status: 0x26a
        Drive type: 8mm cartridge
        Media : READY, writable, at BT

on the same machine dd works fine read or write with a different tape drive
where:
z> mt -t /dev/mt/tps1d5nrnsv stat
        Device: EXABYTE: EXB-8500-85Qanx00415
        Status: 0x20266

we have similar troubles with a 4D/460 running 
IRIX Release 3.3.3L System V rec03

rec05:burow > mt stat
        Controller: SCSI
        Device: EXABYTE: EXB-8500-85Qanx00331
        Status: 0x262
        Media : READY, writable, at BOT

We got the same error message from dd, regardless of which device we're using,
i.e.  dd if=/dev/mt/tps1d3[nr][ns][v][.8500|.8200]
all give the same error.
tar to any of the above drives works fine.

Somehow, I think we're missing something obvious ...
[The others in the above 'we' are lucky, they're spared this public
 embarrassment.]

gratefully yours,
burkhard         burow@vxdesy.cern.ch
From: huhman@iscsvax.uni.edu
Newsgroups: comp.sys.sgi
Subject: screen is blank
Date: 9 Oct 92 17:20:33 -0500
Organization: University of Northern Iowa


We have several personal Iris machines pretty much configured alike.  One of
the users today reset the processor & now when it boots it doesn't put windows
up on the workstation screen.  The login screen flashes a couple times and then
it goes blank.  I thought it was going to be the file
/etc/config/system.glGammaVal needing to be reset, but it has the same 1.70000
as some of the other workstations I checked.  Does anyone have any ideas as to
what this problem might be?  Any replies appreciated.
Stan
Newsgroups: comp.sys.sgi
From: langer@monashee.sfu.ca (Steve Langer)
Subject: Can I get feedback from my printer?
Organization: Simon Fraser University, Burnaby, B.C., Canada
Date: Thu, 8 Oct 1992 00:11:15 GMT


Hello --

  We have an Apple Personal LaserWriter NTR connected to an Indigo via
the serial port. We are using lp and gpsinterface. Every once in a
while, for no apparent reason, the printer will fail to print a
document, or will print only the first several pages. Sometimes this
leaves it in a strange state, and subsequent documents are misprinted.

My questions are:

   (1) We get no feedback from the printer. Can I modify gpsinterface
in some way so that error messages generated by the printer are recorded
into ~lp/log?  With the current lack of information, I can't tell whether
the problem lies with the printer, the Indigo, the cable, or the print files.

   (2) Is there someway to reset the printer without cycling the power?
Next time it happens I'll try sending %!<cr>end, but the intermittency of
the problem makes it hard to experiment.

        Many thanks,
              Steve (langer@sfu.ca)
From: jordan@IMSI.COM (Jordan Hayes)
Newsgroups: comp.sys.sgi
Subject: disabling page cache on memmory mapped files
Date: 9 Oct 92 15:40:14 GMT
Organization: Investment Management Services Inc., NYC

Forgive me, I'm an SGI Newbie ...

I'm trying to port an application from SunOS to IRIX, and I'm looking
for information on the transition ... specifically:

1) In SunOS, you can set the sticky bit on a file, and it will disable
   the use of the page cache for that file.  We've found this to be
   *extremely* helpful in our application.  From the man page:

	If the sticky bit is set on a regular file  and  no  execute
	bits  are  set,  the system's page cache will not be used to
	hold the file's data.

   Does IRIX have something similar?

2) In SunOS, newfs and tunefs were extended to allow multiple blocks to
   be allocated before inserting rotational delay.  The -C flag to
   newfs and the -a flag to tunefs are used to bump up the maximum
   number of blocks to contiguously allocate.  For us (and for many
   folks with modern fast disk drives), setting this value to 7 (for
   56k read/write clusters rather than the default 8k) has doubled our
   throughput.

   Does IRIX have something similar?

Thanks,

/jordan
Newsgroups: comp.sys.sgi
From: spp@jetty.cis.ufl.edu (Stephen P. Potter)
Subject: Re: protect except for one other person
Organization: Univ. of Florida CIS Dept.
Date: Mon, 12 Oct 92 14:05:35 GMT

In article <1992Oct12.080518@masg6.epfl.ch> posse@masg6.epfl.ch (Christian Posse) writes:
>Dear gurus !
>
>I have a question I think with no answer, but not sure
>
Well, it does have an answer.  There are always answers.

>Is is possible to protect a directory so that only one other
>person can go in it ???
>
Using just the permissions of a file, no it is not possible, unless you can set
up your own groups (ie you have operator status) and create a group for just you
and this other person.  Then, you would be able to do this.

Otherwise (I'm going WAY out on a limb here... I haven't tried this and am not 
sure it would work).  What about making a link into Person Bs directory, and
closing off the permissions to a higher level directory.  For example, person A
is the source, B is the recipient.  B has an entry like this:

lrwxrwxrwx 13 B		23 Oct 12 10:00 blah -> ~A/foo/bar/blah

A has this:

drwx------ 13 A	       512 Oct 10 10:00 foo

drwx------ 25 A        512 Oct 10 10:00 bar

drwx---rwx 23 A        512 Oct 10 10:00 blah

If this won't work (or some other variant of using links), and you can't create a
group of just the two users, there is really no way for Unix to handle that kind
of access.

Steve
-- 
    cccc    i   ssss   University of Florida  Computer and Information Sciences
  c           s        Unix Consulting Staff   (904) 392-1183  E309A 
 c        i   ssss     Email: spp@ufl.edu, spp@cis.ufl.edu, 
c        i       s      u4930any@elm.circa.ufl.edu, PRISONER@MAPLE.circa.ufl.edu cccc   i    ssss       PRISONER@ufcc.ufl.edu, Bitnet: PRISONER@ufcc