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Fairlight-CMI

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RE: What does "nnn SEM BUSY ERRORS ON GFX_MAIL" mean in CMI3 MFX2 and how to cure?

2013-11-11 by dkevefnzs@yahoo.com

P.S.: That error message appears in the status line (second line from top) of the VGA display, and nnn is a number that keeps counting up. I've had one experience where every "tick" I turned the jog wheel would do something correctly visible or audible on the mfx console, but at the same time, nnn would be counted up by one. Still, the display on the VGA screen would not update (the machine has a CG-3 card).


I've also tried ! in the MDR display - this makes some text content with available commands appear, but text ouptut is written right into the existing MDR graphics content. So again, clearing the screen (maybe hardware page swapping, something related to this) does not happen as it should.


Technical functionality - apart from (-) correct display updates and (+) this error message - is so good that I can even use the Jog/Shuttle functionality to scrub through audio at arbitrary speeds. I can also change between MDR projects etc. (relatively long, though I experienced a complete stall after quite some time) - But - just no proper display updates for the MDR page.


I can also use "quit" to leave it all, and cmi11 (or reboot) to start the CMI software again. Either will give a clean screen update. So I would guess that most of the hardware should be ok and hope for a software problem or missing cable or ... ???


I've also entered the "SETUP" pages on the MFX controller and cannot set anything that I think might help here. Everything else can be configured as expected.


Both the MFX3plus and QDC service manuals didn't have the error message listed. Google doesn't help either. :-(


Once again, thanks for any replies & kind regards, Joerg




---In fairlight-cmi@yahoogroups.com, <dkevefnzs@...> wrote:

Dear group

I've got the above error message in MDR, or after return from MDR to CMI screens. Apparently, graphics output is not correctly updated as well. I also have lost my MFX controller memory due to empty battery; and mfxload works after power on. The controller also works, I can even open a project and jump around, with correct sound output. CMI mode is apparently fine, including screen updates.

I see Karel has had a similar thing on an MFX3 but has not got any answers so far.
(I've opened a new topic because I only found his "additional problem" when I left out most words from the actual message from the search field.)

I'm going to look through the MFX3 and Merlin service manuals, but if anyone has an idea or a hint on how to get this error away, I'd be very happy! (SEM does probably mean Semaphore, and it may indicate that some graphics drawing portion is busy when a new request comes, but why does that happen?) - I also noted that when I use the CMI key/menu on the MFX controller to change system volume level, rplay stops playing while I turn the knob. But I guess that's not really related and might even be normal.

I use the system only very rarely, so sorry, I'm far from perfectly knowledgeable with it, and I wouldn't always know what's normal and what not...

Thankd for your reading and for any reply in advance!

Kind regards, Joerg

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