HP OpenVMS Systems

ask the wizard
Content starts here

Multi-Headed DECwindows?

» close window

The Question is:

We have got some AXP500au with VMS072 and DECWindows 1.2.5.
We are using 3 graphic adapters PBXGB.
The Problem:
1. Multihead is only possible if the logical name DECW$FFDODMA = 4
    This was told us by the "Help line". What does this parameter mean ?
    It is undocumented.
2. We have a display-application which works with plane-switching
    (update without flickering...). This program works well since years
    on our VAXes and AXP500/500, but on the new machine it gets
    hibernating (HIB) after some minutes. We think that there is possibly
    a problem in the X-server. Do You have ever heared about such
    problems ?
That's all.
Martin Hinterseer

The Answer is :

  Please contact the Compaq Customer Support Center for assistance.
  This could potentially be a problem in the DECwindows environment,
  or it could also easily be a problem in the application itself.
  You will want to ensure that the current ECO kits are applied,
  particularly the GRAPHICS ECO kit and any kits available for the
  DECwindows environment -- and it is best to upgrade to OpenVMS
  Alpha V7.2-1.
  The "ffDoDMA" option selects DMA operations within the server.

answer written or last revised on ( 21-APR-2000 )

» close window