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Video Stutter/Sticking - Not Smooth

I bought a brand new 2011 Mac Mini (mid grade, 2.5 i5 with AMD Radeon graphics card) about a week and a half ago. The goal was to hook it up to my 42" plasma HDTV in the living room to watch TV shows, movies, and streaming video. The setup went fine and it loos good....for everything except video. Any video media I play back, mostly purchases from the iTunes store and using iTunes or QuickTime to play back, results in horrible stuttering or sticking of the video. For example, I bought the most recent Star Trek movie that Apple uses as an example on their computers. When I play it back it goes about 15 seconds, then briefly pauses, then goes another 15 seconds, then briefly pauses. This goes on and on, hence what I call "stuttering." Now if I attempt to play back HD video from the Flip Mino HD that I use, the playback is ten times worse! The sturrering occurs regularly instead of every 15 seconds. Now for the kicker....this does not happen on my 4 year old black plastic MacBook. Both are running Lion. So the Mini has tons more horsepower than the old MacBook yet the old MacBook plays video flawlessly while the Mini stutters along. This is very frustrating. I do not expect this from an Apple product and I'm so upset I'll likely return it.


Anyone else have this issue??

Mac mini, Mac OS X (10.7)

Posted on Aug 5, 2011 3:28 AM

Reply
128 replies

Feb 10, 2012 4:22 AM in response to busenheimer

Update: I checked with the author of that app, and he said he wasn't sure if this could be done. It's entirely dependend on the precision level that the driver allows - which is no. The Apple drivers do not allow for this.


Must be something releativley new. I saw lots of posts on AVS with users up through 10.5 able to do this with SwitchRes X.


Bummer 😟

Feb 10, 2012 8:34 AM in response to busenheimer

I've really been looking hard at XBMC, but I just love the 'server' concept of Plex.


I use EyeTV HD + Front Row + PyeTV + comskip + ETVcomskip, which works great (so long as Front Row isn't crashing): HD h.264 recordings for both HDTVs and iOS devices, all marked in real time to detect and skip commercials. When Apple abandoned Front Row, I experimented with Plex and found it severely lacking: Plex would only play EyeTV's lower-res *.iphone.m4v files on the HDTV, and doesn't know about commercial markers in .edl files at all. Perhaps there's a way to tell Plex about these things, but I couldn't figure it out and gave up and went back to a reinstalled Front Row. I still have to find time to experiment with XBMC.


Other than a reinstalled Front Row, Plex, or XBMC, are there any decent alternatives to HTPC controllers on Lion? I love EyeTV, but their viewer UI is quite limited, and the whole HTPC landscape for Macs leaves much to be desired.

Feb 10, 2012 2:11 PM in response to realzcubed

"

Other than a reinstalled Front Row, Plex, or XBMC, are there any decent alternatives to HTPC controllers on Lion? I love EyeTV, but their viewer UI is quite limited, and the whole HTPC landscape for Macs leaves much to be desired.

"


Unfortunately I don't think so. Like I said, I use Plex, but it's still not perfect. None of them offer any kind of support for live TV via elgato, HD Homerun, etc.. Boxee doesn't even support desktops anymore, Front Row was too limited for me, and XMBC & Plex are still a bit rough around the edges. Looking around at Windows and Linux isn't much better. WMC is terrible- but you do get live TV support, and Media Portal is available but doesn't look any better than XMBC or Plex. Linux has Unbuntu TV.... but its Linux. Overall I don't really see any HTPC platforms where you can say, yep they are the clear leader. Some do things a little better than others, but none do them all very well. Kinda have to pick your poison. The focus is on set top streaming boxes now.

Feb 25, 2012 11:09 AM in response to Macbookjimbo

I just wanted to be clear. My video problem mostly manifests itself in this way: when it's mild, a brief stutter of some sort is especially noticeable during a scene where the camera is panning from one direction to another, or zooming in, or if say an object is in motion accross the screen. When it's severe, you might actually feel seasick looking at all the stilted, unnatural motion occurring on the screen. Is this similar to what you people are experiencing?

May 15, 2012 1:23 PM in response to Macbookjimbo

I have Mac Mini, Mid 2011, i5, 8Gb RAM, Intel HD3000 video. Used HDMI to connect my 28" monitor (1920x1200)

For HD content I'm mostly watching Netflix and experiencing the same video stutter: "especially noticeable during a scene where the camera is panning from one direction to another, or zooming in, or if say an object is in motion accross the screen".

Purchased Mini DP to HDMI cord based on some suggestions above - same issue.


Got sick of it and installed Windows 7 throught BootCamp. Video is silky smooth in Windows.


That makes me beleive the issue has nothing to do with internet / router / HDMI cable / monitor settings. It's the Lion OS. I do not want to jump back and forth between OS's to watch videos. If there is no solution (and looks like this thread is up for almost a year with no fix from Apple), I'll just use Windows. I'm not too happy about it, but I'm not "Apple religious" and will use whichever OS works better.


I'm at loss now - any suggestions?

May 30, 2012 10:38 AM in response to Macbookjimbo

My mid-2011 Mini did this too. Output was to a 27" Samsung monitor via HDMI and now 40" Samsung LED TV via HDMI. The same video content that would play no problem on various MBPs, MBAs, et al, would stutter and stick and smear: self-encoded video, MKV/AVI, motogp.com content.


I went through all the solutions including resetting PRAM/SMC, display sleep 'fixes', etc.


What finally fixed it was using a MDP->HDMI adapter instead of HDMI direct. Everything's 100% perfect now. How annoying!

Sep 1, 2014 9:18 AM in response to Macbookjimbo

I found that Apple's power saving stepping doesn't work well.

Backup and edit this file: /System/Library/Extensions/AppleGraphicsPowerManagement.kext/Contents/Info.plis t


Find your Mac, like "<key>Macmini3,1</key>". Go the the "Heuristic" section and find "Threshold_High" and "Threshold_Low" sections. The numbers in the thresholds are idle times, so raise them. Save the file and reboot.



Sample edit where 70 was changed to 90:

<key>Macmini3,1</key>
<dict>
<key>IGPU</key>
<dict>
<key>BoostPState</key>
<array>
<integer>0</integer>
<integer>1</integer>
<integer>2</integer>
<integer>3</integer>
</array>
<key>BoostTime</key>
<array>
<integer>3</integer>
<integer>3</integer>
<integer>3</integer>
<integer>3</integer>
</array>
<key>Heuristic</key>
<dict>
<key>ID</key>
<integer>0</integer>
<key>IdleInterval</key>
<integer>250</integer>
<key>Threshold_High</key>
<array>
<integer>90</integer>
<integer>90</integer>
<integer>90</integer>
<integer>100</integer>
</array>
<key>Threshold_Low</key>
<array>
<integer>0</integer>
<integer>90</integer>
<integer>90</integer>
<integer>90</integer>
</array>
</dict>
<key>control-id</key>
<integer>16</integer>
</dict>
<key>LogControl</key>
<integer>0</integer>
</dict>

Video Stutter/Sticking - Not Smooth

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