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H264 does not play on one Displaycomputer

Michael Scheck

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Hi everyone,

when testing an upcoming show in the studio today I have encountered a very strange thing that I could not resolve. Maybe somebody has had something similar and can point me to the problem:


On one of three identical Display-PCs movies with H264 Codec do not play. They appear on screen with the first frame or maybe play for a second or so and then freeze. All other content on top of the H264-video plays OK. MPEG-Video plays OK, too. It´s just the H264. Judging from the HDD-LED the movie is played, the LED shows traffic when playing only the h264 part of the show.


I´m using Win7/32 with the new 5.2 version.


This is what I did so far without seeing any changes:

- check an old show that worked fine previously with 5.1. It has the same problems

- reinstalled a working image

- uninstalled WO and did a fresh install

- uninstalled Quicktime and did a fresh install, also stepped back one version from 7.7 to 7.69

- unistall and reinstall the grafics driver, also tried 3 versions of catalyst: 11.9, 12.1 and 12.3


The only thing I didn´t do is reinstall WO5.1 and try and old show. This is probably no option because I made the show that I need in 5.2, so I guess I´m stuck to the new version anyway.


It somehow points to a hardware defect. Is this possible? To check that I would need to swap components between a working PC and the bad one, no time for that now... Or is there any other likely explanation? All suggestions are very welcome!



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