<![CDATA[[ANSWERED] Isadora 3.2.6 Frame rate instability after 5 minutes of play time.]]>I am having a very strange problem in Isadora 3.2.6. I have a simple patch to play 2 HD videos (I've tried ProRes, H265 and H264 and am playing from a Samsung T7 SSD) to 2 stages on 2 projectors. After exactly 5 minutes the frame rate drops from 25 to 23  or 24 fps causing the video to drop frames. I am using a MacbookPro M3 Pro with 18 GB RAM and Sonoma 14.6.1. The computer should have no problem playing 2 HD videos to 2 stages (and they play perfectly until 5 minutes in). If I hit a key on the keyboard or touch the touch pad the frame rate goes back up for another 5 minutes. I've turned off every setting in Mac Preferences that kicked in after 5 minutes as well as my autosave in Isadora but no luck.

Does anyone have a suggestion as to what might be the culprit?

Thanks,

Ur

]]>https://community.troikatronix.com/topic/9266/answered-isadora-3-2-6-frame-rate-instability-after-5-minutes-of-play-timeRSS for NodeThu, 23 Apr 2026 02:29:51 GMTWed, 23 Jul 2025 20:12:01 GMT60<![CDATA[Reply to [ANSWERED] Isadora 3.2.6 Frame rate instability after 5 minutes of play time. on Sun, 27 Jul 2025 15:47:16 GMT]]>@woland

I'll try this out when I have some time to troubleshoot. Thanks!

]]>https://community.troikatronix.com/post/56560https://community.troikatronix.com/post/56560Sun, 27 Jul 2025 15:47:16 GMT<![CDATA[Reply to [ANSWERED] Isadora 3.2.6 Frame rate instability after 5 minutes of play time. on Sun, 27 Jul 2025 15:46:42 GMT]]>@dusx

Thanks! Mouse Jiggler worked for the show last night! Whew!

]]>https://community.troikatronix.com/post/56559https://community.troikatronix.com/post/56559Sun, 27 Jul 2025 15:46:42 GMT<![CDATA[Reply to [ANSWERED] Isadora 3.2.6 Frame rate instability after 5 minutes of play time. on Thu, 24 Jul 2025 14:04:43 GMT]]>@dusx

I believe the workaround is to change the Display Refresh setting in Isadora Preferences/Settings: 


I cant remember if "Off", "Scaled", or "Full" solves it, but I believe one of these settings solves the issue.

We're in communication with Apple about the problem, but progress has been slow.

]]>https://community.troikatronix.com/post/56555https://community.troikatronix.com/post/56555Thu, 24 Jul 2025 14:04:43 GMT<![CDATA[Reply to [ANSWERED] Isadora 3.2.6 Frame rate instability after 5 minutes of play time. on Wed, 23 Jul 2025 21:35:38 GMT]]>@ursullivision
I remember this issue coming up previously. It is something Mac is doing for power saving, and you're right there isn't any system setting to fix this. I don't know if we have worked around this in Isadora 4, but I believe the initial workaround was to programmatically 'wiggle' the mouse every couple minutes.
Not very elegant, but it works.

A quick search turns up a number of utilities for this purpose:

I haven't tested any of these.. some are free some cost a couple dollars.  

]]>https://community.troikatronix.com/post/56554https://community.troikatronix.com/post/56554Wed, 23 Jul 2025 21:35:38 GMT