Path: utzoo!attcan!uunet!crdgw1!rpi!zaphod.mps.ohio-state.edu!sdd.hp.com!hp-pcd!hpcvlx!tomg
From: tomg@hpcvlx.cv.hp.com (Thomas J. Gilg)
Newsgroups: comp.sys.hp
Subject: Re: X on HP 400 series, multiple screens?>
Message-ID: <101950163@hpcvlx.cv.hp.com>
Date: 5 Nov 90 17:23:04 GMT
References: <812@bacchus.esa.oz>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 19


> ................................. There's still only one hil loop
> (i.e., 1 keyboard) per cpu, so only 1 graphics head can be used interactively,
> say, for running X.  Other heads on the system can only be used as graphics
> output devices. 

Though only one HIL loop, it still supports 7 devices.  You can install
two keyboards and two mice (one must be a quadrature mouse with in/out
jacks - ie, it doesn't end the HIL string).  Then you can assign each
server invocation (eg, :0 and :1) a different keyboard/mouse using the
Xndevice's file.

The 300's/400's will actually support three independent server sessions in
this fashion, and the same trick can be played on the 800's (eg, suppose
your heads are located 50 meters away.  Buy one set of HIL extender cables
and route all HIL activity through one).

Thomas Gilg
tomg@cv.hp.com