Hmm... looks like quite some people are reporting these issues now, that they are NOT OSX-Version specific and that the latest beta drivers posted in this thread do not solve them yet...

I've tried to get a FFUC test device (one that I could buy if it works and return if it doesn't) through my local dealer, through the Synthax GmbH and through RME directly. The former wasn't able to get one itself and the two latter didn't even respond to my request.

I'm sure RME is working to fix the issues but I'm still not confident enough yet to spend the bucks

titirom, you were reporting an almost fully functional UC with the latest drivers? Have you tried playback or recording?
- Did you have clicks or distortions during recording? (would be a showstopper)
- Did you have clicks or distortions during playback? If yes, would you consider them to render the device unusable for live performances? (one minor klick every 40 minutes wouldn't really hurt me for now, provided that RME _can_ fix the issue sometime in the not-too-distant future, whereas half a second of whitenoise'ish cracks at high volume would)

Also ppl, please provide your MacBook Pro hardware model identifier when you report issues as I could imagine that being helpful to reproduce / solve the issue. You can find the identifier in the Apple Menu > About This Mac > More Info > Hardware > Model Identifier.

Really looking forward to RME fixing this and me buying one

Great that you have it working now, Titirom. Now we only have to make sure the USB distortion problem wont show up anymore (with or without Parallels). :-)

Well, I've been playing with the 102 firmware and 1.30 drivers on 10.6.3. extensively now, and I can say that everything is still about the same. I've managed to isolate what happens, at least for me:

1) Hot unplug/plug - UC is visible but not selectable as audio output or input device.
2) Sleep does not result in the issue above or distortion only if I leave the UC on and connected. If I unplug the UC or turn it off while in sleep, when I plug it back in/turn is back on, I get total distortion.
3) Recording, playback, guitar amp modeling, etc. all experience occasional dropouts, I'd say at about 10-20 minute intervals.

All of this has occurred at 44.1khz with buffer sizes of 128 and 256. Though I still experienced the #1 and #2 before, I never experienced #3 with the normal release updates in the downloads section of the main website. (I believe the 1.21 drivers and 91 firmware.)

Hope this helps a little more in finding a solution.

agree to titirom,

i had point 1) and 2) (with lesser distortion than before upgrade , but never had occacionally dropouts. That  i forget to say in previous posts - so as long my MBP wasn't sleeping before the UC sounds fantastic.
Update: Killing coreaudiod helped to be able to (re)selecting FFUC, but distortion after sleep is still there

Have you tried reinstalling the driver?

Regards
Daniel Fuchs
RME

Hi luca,

how did it go?

rao

Hi guys,

I'm coming back, and it's good to read this.

Not new problem here, not big distortion until now, just point 1 and 2 but
it's not a real problem for working.

RME team, thanks again for your work, do you think make an "all UC's users " driver/firmware with all point fixed ?

asknone9 what about your problem ? do you tried to reinstall the drivers ?

Had my uc almost a year now and I both love and hate it, after going back to leopard things are better but I still get clicks and audio distortion/drop out not to mention Kernal panic when I plug it in which I have to do pretty often as it regularly doesnt take control of the OS.

I have a new problem now where volume control on my keyboard isnt responded to by the uc.

I am not getting replies to my emails about it either

Pretty unimpressed to say the least.

If my warranty is a year I am about to be forced to take it back.

Which driver are you using?

I'm thinking of going from Leopard to Snow Leopard in an attempt to get my FFUC to work without all the problems I'm experiencing with Leopard.

Hi,
Bad news. Today I worked on a logic 44.1 kHz project (with audio samples, record samples and software instruments) and after 3 hours, the short (1s) big distortion was come
Not very loud but this problem seems not be completely fixed.

I must precise that for me the new drivers are not perfect but I can really work now.

I hope RME team find how to definitely fixed the bugs.

titirom,

When you say always run the UC before the mac, even with sleep mode, does that mean you turn the UC off when you put your mac to sleep?

titirom,

No problem, your English is fine. I was just unsure exactly what you were doing. I do the same thing you do generally, and it all works fine for me, until I have to turn the UC off or unplug it. Then I have to restart. I was thinking that if you turn the UC off and back on every time your computer wakes from sleep, then I should try that when it gives me the distortion. Unfortunately, that doesn't change anything for me. Thanks for clarifying.

You know, I've been reading the seed notes for 10.6.4 and USB is still one of the things on the list. Considering that I have an Audio Kontrol 1 by Native Instruments, and it does essentially the same thing that the UC does, this may not be in RME's hands. Just a thought. It may still be fixable by RME, though, for their products at least.

I just updated the driver and firmware, see first post. Driver 1.40 with firmware 104 includes some interesting changes. We haven't seen effects like the 'unplug/plug no device in system' since then, so it might be this one is a fix. Please try.

https://archiv.rme-audio.de/download/dr … mac140.zip

https://archiv.rme-audio.de/download/fut_usb_mac104.zip

Hi,

very strange, I also get a Version 102 when trying to download https://archiv.rme-audio.de/download/fu … ac104.zip.
Could anyone who has VMware Fusion or Parallels installed check if the sudden distortion problem, is gone as well?

Rao

very nice!

yeah... when unpluggin-repluggin, the distortion problem is solved...

BUT when the computer is in sleep mode for a while and then woken up, the distortion is still present.

hi, im using the latest driver and firmware (.4) with a new macbook pro 15' i7 and its all working fine. even after sleeping the machine or unplugging.

this is a great improvement from my last machine (white macbook 2009 model) which would display distortion after unplug/sleep until i rebooted.

EDIT: I wasn't specific enough. The 104/1.40 combo ARE working, but some conditions seems to cause the distortion, and it seems to be sleep-related. I noticed that I can hot unplug/plug all I want, but after my laptop has been put to sleep a few times, an unplug/plug will bring back the distortion. The fact that it is sleep-related is only speculation at this point, because I was only able to get the distortion once in the past two days. I cannot reliably repeat it. It may very well have been a fluke. I guess what I'm trying to say is I did experience distortion once so far, but cannot pinpoint why. This is worlds better, however, than the previous driver.

the links to the drivers are not working anymore!

hello....because i want end my saga about audio interface i bought new imac(10.6.3) and fireface uc...i couldn't be more disappointed...i cant even instal drivers...i try everything, but fireface wont work...
first i instal drivers from cd, than i made an upgrade with new one...the system shows like everything is ok and computer goes to restart...than i want to make flash update and the system tells me, that i don't have any card and drivers...i know im not the only one with that problem...i will try to do something about that and if that issue will not be solved till monday i will take my highly desired fireface uc back to the store
but im must tell that on my old laptop hp 6910, i had no problems

edit: i found the problem...device was set for pc mode fryingpan

Hi everybody,

Well I had the opportunity to sold my computer and buy a new i7 macbook pro.
After my time machine restoration and installed the last drivers and firmware, all problems seems to be gone :-)

Looking at the very few complains here now, it seems RME team has fixed most of the problems, thank you guys.

Hi everybody,
So am i the last unicorn in this thread? Tested again without using any virtualization software - same behavior (distortion)...
Mmh - So due to titirom's experience the best way to ged rid of the distortion problem is to sell my "old" Mac and buy a Core i7 MBP....
We also are developing a lot of software - dedicated to the music market, but i need the information, if there  definitely will be an update to solve the issues - otherwise i don't need this portable solution anymore and have to look for different I/O interfaces...

A very unhappy inetics...

Hi inetics,

It's sad to hear that the problem is not solved for you.

The time machine restoration putting the Mac in the exact way you leave it except the system files (I think) and you must re-enter some serial numbers. I did that for the migration between my "old" and new Macbook.
This is very useful and safe, maybe you should try (if you don't tried it before).

And yes, I think it's a possible bug of some 2008/2009 series.