Lower frames rate if not attached to Monitor
Hi, I am a long time user of Security spy I would say since Version 1.6, I also (long time ago) asked Ben to go towards RTSP and other amenities that are now part of SS 3.2.1 . Therefore I am a proud user of this very nice piece of SW!
I normally know how to address many aspects of the sw, but this one is weird, at least to me.
If I do not attach a monitor to my Macmini, the frame rates I read on each camera decreases very sharply, if I reconnect my Monitor to the Macmini the frame rates I obtain from each camera on SS gets boosted to turbo+ , nearly 25 frames on each camera (16 cameras - 10 640x480 and 6 1Megapixel). Even if I turn off the Monitor leaving it attached I get the performances degradation.
Since I use the Macmini as server I normally do not use it with the monitor attached but I use Remote desktop to access the Macmini. I noticed that even if I start "Splashtop" client from my ipad to my Macmini I get the Performance Boost effect.
In general all of the response gets better.
Any suggestions, hints?
Thanks in advance,
Frank
I normally know how to address many aspects of the sw, but this one is weird, at least to me.
If I do not attach a monitor to my Macmini, the frame rates I read on each camera decreases very sharply, if I reconnect my Monitor to the Macmini the frame rates I obtain from each camera on SS gets boosted to turbo+ , nearly 25 frames on each camera (16 cameras - 10 640x480 and 6 1Megapixel). Even if I turn off the Monitor leaving it attached I get the performances degradation.
Since I use the Macmini as server I normally do not use it with the monitor attached but I use Remote desktop to access the Macmini. I noticed that even if I start "Splashtop" client from my ipad to my Macmini I get the Performance Boost effect.
In general all of the response gets better.
Any suggestions, hints?
Thanks in advance,
Frank
Comments
https://discussions.apple.com/thread/4155369?start=30&tstart=0
Hope this helps.
My 2 cents,
Frank
If there is no monitor, it seems that the driver software for the video hardware is not loaded by the system and therefore there is no hardware acceleration. This seems to be a major oversight by Apple when they designed this, and I hope it will be fixed in future system updates. In the meantime, as Frank says, I think the best solution is to build a dummy monitor dongle that tricks the system into thinking there is a real monitor attached. Anyone not comfortable building this themselves can buy one cheaply online.
Alternatively, take care to close all of SecuritySpy's windows when terminating the Screen Sharing session when using a headless Mac.
(And enjoyed the convenience of doing the initial set up WITHOUT ever connecting a display: locate the Mac Mini in the Shared Computer list of the Finder Sidebar and choose "Share Screen." In the authentication window, leave the user name blank and use the Mac Mini Server's hardware serial number as password, you're in. Not sure but I think this only works on Mac Mini with OS X Server installed.)
Even without a display I seem to be seeing great frame rates thru screen sharing.
But for those instances when you need a dummy dongle, check out this one.
It plugs into HDMI, provides greater resolution choices and keeps the Thunderbolt port available for more useful connections. I haven't tried it yet but it looks promising.