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DEC Motif

 
Hex
Occasional Visitor

DEC Motif

Can i know how to modify a settings about resolution or frequency of disply card on OpenVMS
4 REPLIES 4
Wim Van den Wyngaert
Honored Contributor

Re: DEC Motif

On which machine ? On a AS500 it's a switch inside on the graphics card.

Wim
Wim
Hoff
Honored Contributor

Re: DEC Motif

There are a couple of boxes where the graphics controllers are built in; systems where the graphics controllers are integrated onto the base system and can't be changed. On (most) boxes, it's a feature of the specific graphics controller.

Put another way, please identify the graphics controller, the specific host system, and the operating system version. From that, we can tell you how to adjust this stuff.

Depending on the graphics hardware, this adjustment can be a hardware switch or dial or such (and that is specific to the model of controller), or (for the soft-loaded graphics controllers) it can involve setting up and editing the decw$private_server_setup or related. The details can (and do) vary, as do the supported resolutions.

There is an introduction to graphics controllers on OpenVMS here:

http://64.223.189.234/node/46

There is an introduction to asking questions here:

http://catb.org/~esr/faqs/smart-questions.html

Hex
Occasional Visitor

Re: DEC Motif

Thank you for the answers. The system is an AS255 233 vhith OVMS 6.2-1H3, the graphic card is digital on bus PCI.
The real problem that i have, is about a monitor to change for break, but some VGA standard monitor go in fault for settings out of tolerance when start DECWindows, before i can read all boot messages. How can adjust that settings?
Thank you.
Hoff
Honored Contributor

Re: DEC Motif

There are dozens of different DIGITAL-branded PCI cards around that provide graphics capabilities. If you want to go further with that discussion, you're going to have to post the card name, the card part number or (from the SRM console) the PCI device id and the SRM PCI card name, or post up a photo of the card itself.

The article I referenced earlier includes information on adapters and on using LCD panels with these older PCI graphics controllers. (This is very dependent on the graphics widget and the LCD; some work, and some show display artifact.) Various adapters are commercially available, and the ICs and wiring schematics are also available via that article if somebody close by is handy with a soldering iron.)

For the stated "see the boot messages" requirement, use of a terminal or terminal emulator or console application is the easiest. That's based on serial console output and (if you're not using the graphics display) is the easiest approach:

http://64.223.189.234/node/995

The AlphaStation 255 4/233 series has console I/O connections and set-up entirely similar to the AlphaServer DS20e referenced in the article.

Wiring and pinout and adapter references are here:

http://64.223.189.234/node/467

Compatibility of older DIGITAL graphics widgets and LCD monitors is in:

http://64.223.189.234/node/446