How to correct screen resolution

[Ed Ohsone]

We have an 8 year old sparc classic. Recently it started to recognize the
width of the screen as more than the actual width of the attached display.
Therefore, some characters at far right are off the screen.

It seems the graphic system accidentally changed only the horizontal
resolution of the screen.

The problem started since some shutdown/reboot sequence.
We did not do any abnormal operation at least intentionally.
The system is running solaris2.5.1.

We do not know how to correct the screen resolution, since we have now no
sun expert at our office. (Most of our platforms are intel PCs running linux.)

We would appreciate any advice/help/pointer to solve this problem.

Thanks in advance.

--------
Ed

[Logan Shaw]

In article <9b8s7j$cah$1...@samba.rahul.net>, Ed Ohsone <eo...@rahul.net> wrote:
>We have an 8 year old sparc classic. Recently it started to recognize the
>width of the screen as more than the actual width of the attached display.
>Therefore, some characters at far right are off the screen.
>
>It seems the graphic system accidentally changed only the horizontal
>resolution of the screen.

Are you sure it's not the monitor that's failing? Monitors can fail in
lots of ways, and this is one you'd expect to happen, given how
monitors work.

- Logan
--
my your his her our their _its_
I'm you're he's she's we're they're _it's_

[Leslie Hayward]

This is a wild guess, but some of the older monitors had a small slide
switch at the rear which changed the scan size. If you have such a
monitor, could this have been tweaked?

Les.

[Bigdakine]

>Subject: How to correct screen resolution
>From: Ed Ohsone eo...@rahul.net
>Date: 4/13/01 8:54 PM Hawaiian Standard Time
>Message-id: <9b8s7j$cah$1...@samba.rahul.net>

do man ffbconfig..

Stuart
Dr. Stuart A. Weinstein
Ewa Beach Institute of Tectonics
"To err is human, but to really foul things up
requires a creationist"

[Alan Coopersmith]

bigd...@aol.comGetaGrip (Bigdakine) writes in comp.sys.sun.admin:

|>We have an 8 year old sparc classic. Recently it started to recognize the
|

|do man ffbconfig..

ffbconfig is for Creator/FFB video cards only, and those cards only work
in an UltraSparc, so it will be useless on a sparc classic. There is no
config program for the frame buffer on a sparc classic. As someone else
posted, most likely it's the monitor gone bad, which can be quickly
confirmed by swapping with a monitor that you know works.

--
________________________________________________________________________
Alan Coopersmith al...@alum.calberkeley.org
http://soar.Berkeley.EDU/~alanc/ aka: Alan.Coo...@Sun.COM
Working for, but definitely not speaking for, Sun Microsystems, Inc.

[Mathew Kirsch]

Ed Ohsone wrote:
>
> We have an 8 year old sparc classic. Recently it started to recognize the
> width of the screen as more than the actual width of the attached display.
> Therefore, some characters at far right are off the screen.
>
> It seems the graphic system accidentally changed only the horizontal
> resolution of the screen.

Unfortunately, that is not possible. The Classic's framebuffer (cgthree?) only
supports a few choice resolutions, and doesn't allow you to change just the
horizontal resolution.

More likely, the horizontal width adjustment of your monitor has changed. If
your montior has extrernal controls, you can try using them to resize your
screen so things fit. The problem is, unless the controls were "bumped" by
someone, the monitor is probably failing. You can replace the monitor with a
standard PC-type 17" or larger, with the proper adapter from www.dalco.com or
another supplier (sun, ultraspec, etc.).

[Ed Ohsone]

Thanks every one who gave me advice.
I solved the problem by using adjusters on the display.
As you said, it was not a problem of OS or graphic card.
Now we postpone ditching our last sparc.

Thank you again.

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