Re: Video "ringing" with PBXGA but not Mach64 or Elsa Gloria

From: Alan Frisbie (Usenet01REMOVE_at_Flying-Disk.com)
Date: 10/23/03

  • Next message: Hoff Hoffman: "Re: Video "ringing" with PBXGA but not Mach64 or Elsa Gloria" 
    Date: Wed, 22 Oct 2003 19:42:08 -0700

    Hoff Hoffman wrote:

    > The AlphaStation 200 box is sufficiently old and slow that I'm not at
    > all certain the graphics board would be my first target for an upgrade.
    > Y'all are simply not going to get performance from an ancient EV4-based
    > system, no matter the graphics controller chosen.

    I agree. I simply wanted to get rid of the blasted "ringing".
    Since I had the other cards on hand, I tried them.

    I would like to upgrade to a higher-performance system like a
    DS10 or XP1000, but David Turner keeps buying them up and keeping
    the price high. :-) (Just kidding, David)
    And yes, I will buy the HP version of the video card for whatever
    new system I get. I want to keep those VMS engineers employed.

    > The 3DLabs Oxygen VX1 device drivers will not function with an EV4-class
    > Alpha microprocessor, such as that found on your AlphaStation 200.

    As I suspected. Thanks for the confirmation.

    > The PowerStorm 3D10T ELSA GLoria Synergy is probably the newest card
    > that has a shot of working, though I do not know if that would be
    > supported in this configuration.

    Supported or not, it has been working nicely all afternoon and
    I am very happy with it. If it fails to work at some point, I
    will just fall back to the ATI Mach64 card.

    I did determine that the ATI Rage XL will *NOT* work, at least in
    my configuration.

    > Have you tried other resolutions with the TGA (ZLXp-E2) card, on the off
    > chance the problem is a disagreement between the monitor and the graphics
    > controller and (when present) the KVM? The switch settings for the
    > ZLXp-E* series controllers are posted at Ask The Wizard topic (6965).
    > This would certainly not be the first time that a controller, a KVM and
    > a monitor had signal integrity problems. Try a less aggressive setting
    > as a test, obviously.

    Thank you for an excellent suggestion. I was running it at
    switch setting 13, which is the most agressive 1280x1024 setting:
    135 MHz pixel clock, 75 Hz vertical rate. The next time I have
    a reason to power-down I will put it back in and try the other settings.
    This might explain why one user e-mailed me to say that he was not
    having any ringing problems with long, cheap cables.

    Thanks for the excellent information. I'm looking forward to
    seeing you again at the VMS symposium next month.

    Alan Remove "REMOVE" to reply

  • Next message: Hoff Hoffman: "Re: Video "ringing" with PBXGA but not Mach64 or Elsa Gloria"

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