I have an 8500 432 MB RAM with a Sonnet 800 G4. No other add-onsexcept a Radeon 7K. After several months of putting up with stuttering sound and eventual loss of all audio until reboot, I've noticed that this only happens when I place an app with audio playback such as iTunes, Audion, QuickTime etc... on the Radeon 7K screen (either by dragging to it set as the secondary screen or when already there as the main/menubar screen) and try to play a file with audio such as a QuickTime movie, CD audio, MP3 etc.... When I move it back to the monitor running from built in mobo video support the audio plays fine. Sound works like it should on both monitors in OS 9.1 and 9.2 but not 10. I've gone through an upgrade path starting at 10.0 - 10.1 -10.1.5 - 10.2 - 10.2.3 - 10.2.4 -10.2.5 - 10.2.6, Clean Apple installs (no ATi drivers), except for the help of XpostFacto 2.2.5 didn't even run the Sonnet L2/L3 cache enabler. Same behavior each time. Then with the caches enabled. Also with and without firmware ver. 2.0.8 for the Radeon card. Pulled the card to the other slots, reset PRAM, used only one monitor, still the same effect. What am I not doing? With all the radeon 7K users on the list has or can anyone else duplicate this behavior on your setup? Is there a fix? I'm sorry if I missed this in an earlier discussion if it already was.
Thanks,
Steve
It sounds like you have a back ground process running under X that's eventually grinding Mac to a halt. What X tuning have you done, try removing things that you may never use such as Apache web server component....
Simon Melb, Australia
I have a Daystar Genesis with the 800 Mhz Sonnet G4 and the Radeon 7000.
My sound wont work in iTunes but everything else is OK...in 9.1, 8.6, and 10.2.6
M
I have 2 radoen 7k mac edition and one 64mb pci radoen 7k flashed for mac, and i get the occasional skip in itunes of qt, but i dont lose it entirely, although i used to till i got the pc radeon...wonder why?
-Josh
I ran PCI Extreme on my oldest partition running 10.2.6 this morning which fixed this nagging sound issue with QuickTime and iTunes. This partition is several months old and has many hacks, tinkerings installs, de-installs etc... on it so it is far from virgin. From Simon above, I did run Disk Warrior 3 under OS X and rebuilt the file structures and verified/repaired the partitions and permissions with Disk Utility. and updated the disk drivers. I haven't looked into what exact processes are running other than basic system operations and deleting any unnecessary ones but will look into that. I don't know what some of those more exotic sounding managers, services etc.. are for anyway. I did run PCI Extreme on another partition with a clean as possible version of 10.2.6 and repeated the results (QuickTime 6.3 and iTunes 4.0.1 and the Sonnet L2/L3 cache enabler 1.2.7 were installed after the system updates) Internal or external SCSI doesn't seem to matter, similar results. So would this mean Quartz is involved in the background or with QuickTime processes and screwing with the audio? One other thought now occurs to me. I'm using Hard Disk Speed Tools ver. 3.5 to format the drives and partitions in question. I will have to see what an Apple ROM'd drive and Drive Setup formatting will do. Could this be an issue? At any rate, from some of the feedback above, I'm now curious to know what tinkering/voodoo PCI Extreme may have done and where. I'm far from knowledgeable on UNIX inner workings, so anyone out there that might be...
-- Steve
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