1 5 6 7 8 9 Previous Next 244 Replies Latest reply: Aug 9, 2011 5:05 PM by urbanSeb Go to original post
  • 90. Re: Firewire issues after Snow Leopard...
    paulimausi Level 1 Level 1 (15 points)
    I, too, had problems with my WD My Passport Studio 500 (WDMT5000) and FireWire 800. It would normally work but would hang during copying large quantities of data. (I tried to copy a large .sparsebundle, so it was not actually a large file.) I could not cancel the copying process. Restarting the Finder would result in an error message saying the Finder could not be started. The only remedy I had was plugging out the FireWire cable. After that the Finder would restart.

    Connected via USB the disk would just work fine, so I am pretty sure it is a FireWire issue.

    But after having read this thread I reset the PRAM (restarting holding down Cmd-Alt-P-R) and it helped. Now I can use my FW disk again.

    Thanks jacp!
  • 91. Re: Firewire issues after Snow Leopard...
    somi Level 1 Level 1 (40 points)
    jacp wrote:
    My firewire problems were solved after a hardware/ RAM reset.


    Just realized that jacp posted the same solution earlier in this thread
    I missed this somehow!

    Best Regards,
    Michael
  • 92. Re: Firewire issues after Snow Leopard...
    Scott Rowan Level 1 Level 1 (65 points)
    Yes, I too am having problems. My MOTU audio board (828MKII) is firewire and the audio now skips since I upgraded to Snow Leopard. Sometimes it doesn't, but if I'm copying files from another Firewire port (MyBook) the audio starts to skip. Never did this before Snow Leopard.

    /cry
  • 93. Re: Firewire issues after Snow Leopard...
    janinspain Level 1 Level 1 (5 points)
    I'm facing a similar issue: trying to backup to a Western Digital Passport 500GB 2.5" using the backup software "Backup" that comes with Mobile Me and also tried backup application "Twin". Sometimes just disconnects without giving any error message...
  • 94. Re: Firewire issues after Snow Leopard...
    jwilhelm Level 1 Level 1 (0 points)
    Hi
    Just wanted to let You know that i'm facing the same or a similar problem (kernel panics on Snow Leopard with attached FW HD via Cinema Display's hub) on my MacBook.
    I did not have problems with my MBP, however.
    Cheers
    Joha
  • 95. Re: Firewire issues after Snow Leopard...
    Okonomi Level 1 Level 1 (0 points)
    I am having same issue: My Passport Studio 500MB works with USB and not with Firewire 400 or 800. Also, my MyBook 1TB drive that I use for Time Machine will also now not work with FW400 - only USB. Tried the Passport on my other iMac and it is also not recognized in FW800 or FW400. Did same with WD Passport replacement drive they sent me (thought drive was the problem) - same issues.
  • 96. Re: Firewire issues after Snow Leopard...
    somi Level 1 Level 1 (40 points)
    you should try the PRAM reset described above...
  • 97. Re: Firewire issues after Snow Leopard...
    Okonomi Level 1 Level 1 (0 points)
    Thanks somi - I forgot to mention that I tried everything I could find in this forum and none of it worked. Reset SMC, PRAM, downgraded the ketx files per Amaury's helpful post and download, repaired permissions - still, nothing will mount or show up with FW400 or FW800. I'll also note that I previously was able to get some disks to mount (with extremely poor performance and reliability on FW800, and better on FW400), but for some reason it won't happen now. I thought the WD Turbo and disk management tools might have caused the problem, but I've also un-installed those, and it did not help. Any other ideas, much appreciated....
  • 98. Re: Firewire issues after Snow Leopard...
    Chris Heric Level 2 Level 2 (255 points)
    Yeah I had the same experience.. I tried everything, resetting the PRAM 4 times before I even posted this topic. While some people have reported sporadic resolutions to the issue with PRAM resets, I doubt that is a solution. Thanks all for your posts.

    Chris
  • 99. Re: Firewire issues after Snow Leopard...
    jerryvegas Level 1 Level 1 (0 points)
    I've had issues with my firewire as well. I called the people at Apogee (they make my firewire audio interface) They told me that after a long time they spoke with apple and learned that when you plug a Firewire 400 and 800 in at the same time, the 800 runs as a 400. I think it creates other problems as well. When I unplug one it all seems to work though. Also with my apogee Duet I have to use the firewire port on the back of my tower and not the monitor or port in the front. They told me this could cause problems as well. Not sure if this info helps you at all but I thought it couldn't hurt.
  • 100. Re: Firewire issues after Snow Leopard...
    David T. Moore Level 1 Level 1 (20 points)
    So, it seems that the lack of support for FW400 in 10.6.x is a possible culprit. Ah well, I guess it could be worse. Apple could have required us to buy new machines to use the upgrade.

    What about daisy chaining FW800s and FW400s -- i.e. a FW800 into the machine chained to a FW400 and so on. Kludgy I know.

    What about folks -- power user level -- who are not having the problem. Useful suggestions from them might be valuable. What are they doing differently that we are not?
  • 101. Re: Firewire issues after Snow Leopard...
    G Robert Lewis Level 2 Level 2 (225 points)
    This is driving me crazy. Almost-new Mac mini. Apple just replaced the main logic board but the FireWire still won't work right. It seems to be getting worse. Sometimes it works, usually it doesn't. Doesn't seem to like daisy-chained connections at all. It is blind to connected devices. Sometimes System Info says "Warning: unable to list FireWire devices."
  • 102. Re: Firewire issues after Snow Leopard...
    ongillem Level 1 Level 1 (5 points)
    Just wanted to add to the list of issues. I upgraded my MBP on Sunday from 10.5.8 to 10.6.1.
    I have lost access to some Firewire devices. My MBP has 2 Firewire ports, 1 FW800, 1 FW400.
    My MBP now has the following behaviour: everything I plug in the FW400 ports works. Everything I plug into the FW800 port does not work.
    I tried pretty much all possible combinations with 3 external FW drives, always with the same result.
    I tried the PRAM and SMC reset, no changes. I will wait for the next system upgrade before playing with system files.
    I find it odd that the FW400 port works since keep reading that SL does not support FW400.
  • 103. Re: Firewire issues after Snow Leopard...
    ongillem Level 1 Level 1 (5 points)
    I did restart my MBP with 10.5.8 on an external drive. My FW800 port does not work anymore with 10.5.8. It work up to my update to 10.6.1. The drive I started up with was connected to the FW800 port when I cloned my internal drive before I started the upgrade process.
    Is it possible to determine if this is HW instead of a software problem. I would hate to think that the upgrade actually broke a port.
  • 104. Re: Firewire issues after Snow Leopard...
    ongillem Level 1 Level 1 (5 points)
    I redid some of the resets, PRAM and SMC and was able to get my FW800 port to come back to life on my MBP early 2008.
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