The A1097C monitor from Hewlett Packard

Forget what you have read about this monitor on the net. It uses a resolution of 1280 x 960, NOT 1280 x 1024.

Since it uses syncronization on the green cable instead of on 2 separate cables, an adapter is needed. I use the 0215-PCS PC Sync Adapter from Griffin Technology. It costs $30, and gives an excellent signal. (Not anymore. They are discontinued, BUT you may get them from me, since I still have some left, including cables.)

Spec: A1097C is a monosync monitor from Hewlett packard. It is not adjustable, but is made for one single mode only, which is 1280 x 960, at 72 Hz, a perfect 4:3 monitor. Sync on green.

This is what it looks like. There are 3 BNC connectors on the back, so synchronization has to be on the green wire. There are rumours that there are variants with 5 connectors. (According to Dusan Jankovic it is possible to adjust this monitor for lots of other resolutions by using a screwdriver on the hidden controls, marked with yellow on the picture. There are markings on the metal inside.)

• Linux and FreeBSD, (XFree86):
  The modeline under Linux, XFree86, is:
  ModeLine "1280x960" 122 1280 1360 1504 1664 960 960 963 1023

• RiscOS:
  The following modedefinition has been tested on 2 machines, and 2 A1097C monitors, with very good results.
  

  # Modefile written by !MakeModes version 0.26 (14th December 1994)

  file_format:1
  monitor_title:hp A1097C
  DPMS_state:1

  # 1280 x 960 (72Hz)
  startmode
  mode_name:1280 x 960 (72)
  x_res:1280
  y_res:960
  pixel_rate:122000
  h_timings:144,160,0,1280,80,0
  v_timings:3,60,0,960,0,0
  sync_pol:0
  endmode

  # End
  

• NetBSD:
  Try the Linux modeline for X86, or the ModeFile for RiscOS when using NetBSD arm32.

• Windows:
  Matrox G400 DH card (first head running a working monitor, and the second for the HP monitor). This card supports 1280x960 in Windows as one of its options, and from there it was a matter of trial and error for the Vert Refresh, with 75Hz being the final result. [From: Arlen Carlson arlen@adccet.freeservers.com]

  If you managed this on another card, please email me.
  

• Apple:
  Don't know how to do this, so mail me if you know.