Problems with Mac Book Pro Firmware Upgrade 1.5 and Max/MSP 4.6.3

Apr 20, 2008 at 6:03pm

Problems with Mac Book Pro Firmware Upgrade 1.5 and Max/MSP 4.6.3

I’m running a Mac Book Pro with 2.4 GHz Intel Duo processors, 2GB RAM, OSX 10.4.11, and MAX/Msp 4.6.3. Last week I applied the EFI Firmware Upgrade 1.5. I think that this was a huge mistake. Before I applied this upgrade, I had no audio problems, and now I see chop and stutter in patches that generated nice, smooth effects prior to the upgrade (no changes to the patches). Is anyone else out there with a MBP seeing any audio problems following this upgrade?

Basic Mac apps like iTunes run fine. So do simple Max patches.

But, I have a feedback/delay effects patch which uses poly~ that used to run smoothly on my MBP that now stutters. As a sanity check, I installed this patch on another machine (a Dual 2.7 GHz Power PC G5 Desktop machine running OSX 10.4.11 and Max/MSP 4.6.2). The patch runs smoothly on this machine, as it did on my MBP before the firmware upgrade.

I have tried:
1) Trashing my Max/Msp preferences
2) Adjusting the I/O and Signal Vector sizes
3) Using internal audio as well as external MOTO828 audio interface (so audio interface drivers, cables, speakers, etc. aren’t the problem)
4) Varying feedback/delay coefficients (it doesn’t matter how much or little feedback or delay is used).
5) Changing the number of poly~ instances from 20 to 8 (reducing the number of poly instances seemed to help, but it did not eliminate the problem)

Another observation is that after the firmware upgrade, the DSP Status Window shows the CPU utilization swinging wildly from 10-100%. Prior to the upgrade, the CPU utilization was a pretty steady 5-10%.

Has anyone else experience any problems following recent upgrades to OSX on the Mac Book Pro, especially with the latest firmware upgrade? Does anyone have any other ideas to try?

This upgrade seems to have rendered my machine unusable for Max/MSP development. I’ve opened a problem report with Apple about it…

#37030
Apr 20, 2008 at 7:22pm

Turn off airport.

c
On Apr 20, 2008, at 1:03 PM, Mary Pietrowicz wrote:

>
> I’m running a Mac Book Pro with 2.4 GHz Intel Duo processors, 2GB
> RAM, OSX 10.4.11, and MAX/Msp 4.6.3. Last week I applied the EFI
> Firmware Upgrade 1.5. I think that this was a huge mistake.
> Before I applied this upgrade, I had no audio problems, and now I
> see chop and stutter in patches that generated nice, smooth effects
> prior to the upgrade (no changes to the patches). Is anyone else
> out there with a MBP seeing any audio problems following this upgrade?
>
> Basic Mac apps like iTunes run fine. So do simple Max patches.
>
> But, I have a feedback/delay effects patch which uses poly~ that
> used to run smoothly on my MBP that now stutters. As a sanity
> check, I installed this patch on another machine (a Dual 2.7 GHz
> Power PC G5 Desktop machine running OSX 10.4.11 and Max/MSP
> 4.6.2). The patch runs smoothly on this machine, as it did on my
> MBP before the firmware upgrade.
>
> I have tried:
> 1) Trashing my Max/Msp preferences
> 2) Adjusting the I/O and Signal Vector sizes
> 3) Using internal audio as well as external MOTO828 audio interface
> (so audio interface drivers, cables, speakers, etc. aren’t the
> problem)
> 4) Varying feedback/delay coefficients (it doesn’t matter how much
> or little feedback or delay is used).
> 5) Changing the number of poly~ instances from 20 to 8 (reducing
> the number of poly instances seemed to help, but it did not
> eliminate the problem)
>
> Another observation is that after the firmware upgrade, the DSP
> Status Window shows the CPU utilization swinging wildly from
> 10-100%. Prior to the upgrade, the CPU utilization was a pretty
> steady 5-10%.
>
> Has anyone else experience any problems following recent upgrades
> to OSX on the Mac Book Pro, especially with the latest firmware
> upgrade? Does anyone have any other ideas to try?
>
> This upgrade seems to have rendered my machine unusable for Max/MSP
> development. I’ve opened a problem report with Apple about it…

#127495
Apr 21, 2008 at 8:52am

or replace the “IO80211Family.kext” file by an older one.
for example this one inside this installer: http://www.apple.com/
support/downloads/airportextremeupdate2007004.html

#127496
Apr 21, 2008 at 2:12pm

Yes – that was it. No more stutter in the Max patch with airport off. Thanks!

#127497
Apr 21, 2008 at 2:18pm

I’ll try the IO80211 replacement now…

I still need to be able to run both Max and Airport simultaneously.

#127498
May 23, 2008 at 6:36pm

Hi,

What’s the latest? Did the IO80211 replacement fix the airport issue? I’m having a similar problem.

jt

#127499
May 25, 2008 at 1:55pm

Quote: fp wrote on Mon, 21 April 2008 02:52
—————————————————-
> or replace the “IO80211Family.kext” file by an older one.
> for example this one inside this installer: http://www.apple.com/
> support/downloads/airportextremeupdate2007004.html
>
>
>
>
>
—————————————————-

I cant seem to install that, it tells me that none of my drives can have this update. Is there a manual method to install?

#127500
May 25, 2008 at 3:00pm

Quote: Axiom-Crux wrote on Sun, 25 May 2008 15:55
—————————————————-

> I cant seem to install that, it tells me that none of my drives can have this update. Is there a manual method to install?
—————————————————-

as far as I understand this thread you have to replace the “IO80211Family.kext” Extension with an elder version (which you can find in the installer-package given in the link).
It lives in the folder yourHD(MacHD)/System/Library/Extensions

I attach the (elder) extension as a zip

hth

ole

#127501

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