This might not have anything to do with the issues either of you are having, but I thought I'd mention what I found. None of the discreet text and configuration diagrams I looked at used the 'DVI Out' port on the VBOB as the connection for the graphics monitor. Discreet uses the base display port on the DCD equipped V12s to connect the graphics monitor <the 13w3 on the Octane and the base DVI on the Tezro>.
I don't know if Discreet knows of something that's not in the DM5 User's Guide, or if their software just needs a different cabling configuration. If you'd like to take a look, the Octane configuration and diagram can be found starting on page 26 of the Tezro and SGI Octane2 Workstation Hardware Setup Guide: ftp://ftp.discreet.com/pub2/doc/Effects ... ctane2.pdf That guide covers the Tezro too, but does so using an third-party external DCD. As an interesting aside, that guide includes a mention of why the SGI's VPro DCDs may have become so rare:
The DCD-2 board is discontinued by SGI for Tezro workstations. The functionality of this board is replaced by the Gefen Inc. ex.tend.it HDTV Splitter Distribution Amplifier.
I found another Discreet manual that does include setup procedures for a Tezro with SGI's OEM VPro DCD. The Tezro illustrated is the rack version, but should still be enough similar to the tower version to be applicable. The Tezro DCD/DM3/DM5 instructions start on page 148: http://www.discreet.jp/support/system_s ... _notes.pdf
There have been a few oblique mentions on nekochan of using the Discreet method of connecting to the base display ports on the V12, along with some of the display issues that type of configuration caused: viewtopic.php?f=3&t=17253&p=7286590&#p7286590
The Discreet manuals might also explain the DM5 User's Guide mention of not using the standard 2-meter DVI cables that came with the DCD - apparently they're too long for video signal transmission. I noticed this note in e few of the Discreet manuals:
NOTE: You must use the short DVI cables provided with the hardware. Longer cables will cause artefacts in the video output when the graphics-to-video connection is enabled.
Here's an example of one of the cabling diagrams: