From: Dave Goodyear <dave@kb2networks.com>

Date: August 14, 2014 4:23:14 PM MDT

To: "Astro_IIDC@yahoogroups.com" <Astro_IIDC@yahoogroups.com>

Subject: RE: [Astro_IIDC] Strange Problem

Hi All.

I recently had an SSD HDD crash in my early 2011 MBP.  Luckily I had a backup.  This machine was running snow leopard as well as a bootcamp win7 x64 partition.

I replaced the SSD and restored from backup.  At the time I decided to upgrade to Mavericks.  I also reinstalled the win7 x64  bootcamp partition (fresh install not restore from backup)

I have a PTGrey Grasshopper Express 2.8 Firewire using the latest firmware.

I just noticed Milton’s response below about seeing a pause.  Is this pause in the Mavericks OS itself or are you talking about a pause in firewire video capture from AstroIIDC in Mavericks?

I ask because ever since my upgrade to Mavericks, my Windows side bootcamp installation with the latest version of flycap has this erratic pause when capturing video using the flycap firewire driver. The issue goes away if I use the standard Microsoft firewire driver.   I have been working with PTGrey for a few weeks on the issue and a solution has not been found.  (Downgrading firmware, installation of older versions of flycap, etc)

I have not had a chance yet to test AstroIIDC on the Mavericks side to see if this pause in video capture exists on the Mac side.

Dave Goodyear

KB2 Networks Inc.

214 Main St. #318                             

El Segundo, CA  90245

310-933-2436

From: Astro_IIDC@yahoogroups.com [mailto:Astro_IIDC@yahoogroups.com]
Sent: Thursday, August 14, 2014 1:43 PM
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] Strange Problem

Hi Kevin;

On 2014-08-14, at 11:27 AM, Kevin in Fort Davis fsm79734@gmail.com [Astro_IIDC] <Astro_IIDC@yahoogroups.com> wrote:

Thanks, Milton - the 10.9 stuff is good information.  I'll try and stay away from testing with 10.9 if at all possible.

As other have indicated, Mavericks seems to work for them. However I and other people have had odd pauses erratically with it - where it will beach ball delay for up to 20 seconds sporadically - regardless of what application your in. I have no idea why it does that and nothing shows up in Terminal as to what is the root cause.

Before the firewire bandwidth issue suddenly cropped up, we were running both cameras simultaneously at full resolution and bit depth and never had a problem.  I'll also try resetting the PRAM again.  I'm assuming it's not either one of the cameras, because they work fine individually, just not when they're both connected.  Although, when they are both connected, it's always the same camera that's recognized, while the other one is ignored.  I can't even run them both at the lowest resolution, bit depth, and frame rate - I think.

That could be a Hub issue too.

Have you tried connecting the Flea 3 cameras to each other in Daisy Chain fashion (i.e MAC -> FW 800 to First Camera -> FW 800 port on First Camera to Second Camera)?

It might not be practical for each camera on a separate telescope, but it would be useful for trouble shooting.

And you are using a FW 800 hub to your FW 800 Mini Port, right?

HTH..

Milton Aupperle