Random Audio busses looses sound!

[Themystro1]

Greetings,

Setup:
PT HD 8.0.4cs2
OSX 10.5.8
Intel Mac 8-core (nehalem) w/8gb RAM
4 Internal Drives (320gb(Mac), 1tb (partitioned), 1tb (partitioned), 2tb (backup), 1 external 1tb - Picture drive
AVDC firewire 400
Magma Chassis w/PCIe update
5 Accel (PCI-X, 1 core (PCI-X)
3 - 192 i/o digi
1 - Apogee AD16x
Plugin List at bottom of Mail (all plug-ins are updated)

Problem:

We've had this problem off and on since PT 7.1 (different computers, different setups). Bassically there is a Master Pre-Bus (on an aux) set as a 5.1 where channels keep dissappearing (mainly the left side), then all output stops. This happens fairly regularly now as the sessions we are working on are 50+ tracks (mixed stereo, 5.1) and our buss list is about 88+

Fixes tried:
The normal - trash databases, trash I/O setings, prefs, repair permissions, cold boot the entire system (including chassis and I/O) re-seat cards and cables. Update plug-ins. Unload plugins on affected busses. We thought going to 8.0.4cs2 would fix a possible problem thinking that it might be DSP Cache issue (which is now disabled). All of these are temporary fixes but the problem keeps occuring. The problem is also on many different sessions, based off of different templates. If we try to load a session after we get the audio dropouts we start getting random DAE errors (-7100, -4, -9600, etc) or just entire computer freezes.

Please help!!!

Thanks.

PLUGIN LIST:
360 Surround TDM 7.0.0 Waves, Inc. Bundle

Access Virus Indigo Digidesign License Never
Amp Farm 3 Digidesign Update Never
API TDM 7.0.0 Waves, Inc. Bundle

Aural Exciter & Big Bottom Digidesign License Never
Auto-Tune 5 TDM+native Antares Audio Technologies Bundle


Auto-Tune 5 Native Antares Audio Technologies License Never Auto-Tune 5 TDM Antares Audio Technologies License Never AVOX Antares Audio Technologies License Never
BF Fairchild Bundle v4 Digidesign License Never
BF Moogerfooger Bundle v4 Digidesign License Never
BF Voce Bundle v4 Digidesign License Never
Bomb Factory BF-3A Digidesign License Never
Bruno/Reso Digidesign License Never
Cosmonaut Voice Digidesign License Never
D-Fi Digidesign License Never
DINR Digidesign Demo

Dolby Surround Tools Digidesign License Never
Fairchild 670 Digidesign License Never
Focusrite d2/d3 Digidesign License Never
GRM Tools Classic for TDM GRM Tools License Never
GRM Tools ST GRM Tools License Never
H949 Harmonizer Promo Eventide, Inc. License Never
Impact Digidesign License Never
IR-360 Native 7.0.0 Waves, Inc. Bundle

iZotope Ozone (tm) iZotope, Inc. License Never
iZotope Spectron (tm) iZotope, Inc. License Never
iZotope Trash (tm) iZotope, Inc. License Never
JOEMEEK SC2 Compressor Digidesign License Never
JOEMEEK VC5 Meequalizer Digidesign License Never





Kramer Signature Native 7.0.0 Waves, Inc. Bundle

Line 6 Echo Farm Digidesign License Never
Maxim Digidesign License Never
McDSP Analog Channel HD McDSP License Never
McDSP FilterBank HD McDSP Update Never
McDSP MC2000 HD McDSP Update Never
McDSP ML4000 HD McDSP License Never
MDW Hi-Res Parametric EQ Digidesign License Never
Moogerfooger 12-Stage Phaser Digidesign License Never
Moogerfooger Analog Delay Digidesign License Never
Moogerfooger Ring Modulator Digidesign License Never
Oxford R3 EQ TDM PT7 Sonnox Ltd. Update Never
PHOENIX Crane Song Ltd License Never
PitchDoctorPromo SoundToys Demo

PlateReverb Princeton Digital LLC Demo

Pro Tools HD 7 Digidesign License Never
Pro Tools HD 7.3 Digidesign License Never
Pro Tools HD 8 Digidesign License Never
PTHINFG4 Sonnox Ltd. Bundle

Pultec EQH-2 Digidesign License Never
Pultec MEQ-5 Digidesign License Never
Purple Audio MC77 Digidesign License Never




















Reverb One Digidesign License Never
ReVibe Digidesign License Never
SansAmp PSA-1 Digidesign License Never
Slightly Rude Compressor Digidesign License Never
Smack! Digidesign License Never
Smack! LE Digidesign License Never
Sonic NoNoise Digidesign Demo

SoundReplacer Digidesign License Never
SoundToys TDM Effects V3 SoundToys Update Never
SSL 4000 TDM 7.0.0 Waves, Inc. Bundle

Synchronic Digidesign License Never
TC Electronic Studio Complete Bundle TDM TC Electronic Bundle

DVR2 Digital Vintage Reverb TDM TC Electronic License Never Harmony4 TC Electronic License Never MD3 Stereo Mastering TDM TC Electronic License Never NonLin2 Stereo Effects Reverb TDM TC Electronic License Never TC MASTER X3 HD TC Electronic License Never queued Tube-Tech CL 1B TC Electronic License Never UnWrap Stereo to 5.1 TDM TC Electronic License Never VSS3 Stereo Source Reverb TDM TC Electronic License Never TC MASTER X3 HD TC Electronic License Never
Tel-Ray Variable Delay Digidesign License Never
The Forte Suite Focusrite Audio Engineering License Never
TL AutoPan Trillium Lane Labs License Never
TL Space TDM Trillium Lane Labs License Never
Voce Chorus/Vibrato Digidesign License Never

[Frank Kruse]

Has been a known issue for years with lots of threads on this issue. Here´s one:

http://duc.avid.com/showthread.php?t=168473

Frank

[garnoil]

I have been getting this for a long time (may be since PT 7), I don't think Avid can or will ever fix this problem (otherwise they would have already).