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More => Old Versions => JRiver Media Center 20 for Mac => Topic started by: Grayson54 on November 29, 2014, 04:31:54 pm

Title: MC20 for Mac often "locks", will not respond
Post by: Grayson54 on November 29, 2014, 04:31:54 pm
When I use MC20, it often goes into some kind of "lock" mode, a spinning color wheel appears on the screen over the app.  Perhaps "lock" is not the right word.  MC20 is simply unavailable.  It seems to get into some kind of process and then will not finish.  No error messages or windows appear, it just is in permanent spinning wheel mode.  I have to "force quit" to get it to come back up.

Any suggestions on what is causing this and what can be done about it?

Thanks,
George
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JimH on November 29, 2014, 05:57:31 pm
Are you using 20.0.40?
http://yabb.jriver.com/interact/index.php?topic=93558.0
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Grayson54 on November 29, 2014, 09:16:19 pm
Yes, 20.0.40 is the version.  Just set it up three days ago.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Grayson54 on November 30, 2014, 08:48:43 am
I even tried to uninstall and reinstall.  Same result.  JRiver for Mac is essentially unusable. I have been running JRiver for Windows on an old laptop for some time.  Trying to make the move to Mac (supposedly for better sound quality), but it seems unstable. Please help.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JimH on November 30, 2014, 08:52:09 am
Let it run for a few hours.  Something may be slow about importing files.  Network drives, antivirus, or bad files can do that.

Turn off auto import.

It won't sound better.  That's a myth.  But it shouldn't hang.

Title: Re: MC20 for Mac often "locks", will not respond
Post by: latinim on November 30, 2014, 10:28:34 am
occurred to me too.
I found 6 corrupted files. I have taken from a backup, and is now working for about two hours, with Autoimport active, no problems!

Massimo
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Grayson54 on November 30, 2014, 11:33:36 am
Mac's don't sound better?  You sure see that a lot in the blogs and chatter.  Not true?
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JimH on November 30, 2014, 01:02:42 pm
Idle chatter.  Truly.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Grayson54 on November 30, 2014, 01:05:44 pm
OK.  My JRiver Mac just went "spinning circle", so I will let it spin for a while, see what happens.  I am also evaluating Audirvana and good old iTunes, to see if any of those are more reliable.   
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Grayson54 on December 02, 2014, 10:06:32 pm
May have figured out the problem.  Somehow, the main library was placed on my Synergy NAS.  The slowness of the drive upset MC, locking it somehow.  I cloned the library onto the main solid state drive on my Mac Mini.  Renamed it as the Main Library.  Has not crashed since.  Will leave it open overnight to see if the locking happens again.  Thanks.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on December 02, 2014, 10:26:58 pm
My library is on my Mac Mini as well, but MC is no longer stable since I've updated to MC20.  It's really frustrating now as I can't rely that the server will be alive as I depend on it to keep running when I'm outside the house and I use it as a specialized alarm clark since I can set different times for specific days.  

It's an unfortunate situation right now.  I hope that this will be addressed.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Grayson54 on December 08, 2014, 10:05:05 pm
I thought a solution had been found, but it now locks virtually every time I open JRiver MC20.  This is a major disappointment.  I had great luck with my JRiver MC on PC.  Amazing that they would release something so unstable. 
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on December 09, 2014, 01:02:52 am
Yes it definitely is.  I'm hoping for a solution this week and it's definitely not an "import" issue as I turned auto import off and it still locks up after a while.  I can't open MC at all and I have to force quit it every time via the Activity Monitor app.  MC 19 was at least stable.  This version has been nonstop disappointment.  I hope the JRiver staff consider this when they charge us another $20 come February or March.  
Title: Re: MC20 for Mac often "locks", will not respond
Post by: philoouu on December 09, 2014, 02:44:31 am
Agree ! When I moved to MC I was warned it was not stable on Mac. But I was very happy with MC19. The problems started with MC20 and the especially  20.0.40. The spinning wheel is often here, it stops randomly... The worst behaviour is that not only I have to restart my renderer but sometimes I have to reboot my Mac manually (physically) because I just cannot shut it down or restart it with the restart / shut down menu. MC cannot be force killed.
Please fix those bugs. MC19 was really fine
Title: Re: MC20 for Mac often "locks", will not respond
Post by: mvilla on December 09, 2014, 08:36:01 am
Agree ! When I moved to MC I was warned it was not stable on Mac. But I was very happy with MC19. The problems started with MC20 and the especially  20.0.40. The spinning wheel is often here, it stops randomly... The worst behaviour is that not only I have to restart my renderer but sometimes I have to reboot my Mac manually (physically) because I just cannot shut it down or restart it with the restart / shut down menu. MC cannot be force killed.
Please fix those bugs. MC19 was really fine


+1

If possible. make it stable for audio before going on with video features.
Thanks for all your efforts
Mssimo
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JohnT on December 09, 2014, 03:23:46 pm
Could you guys send us log files after you experience the freeze?  It's in the menu under Help / Logging.  You have to enable it first, then restart Media Center and wait until you have one or more spinning wheels, then go back to the menu and select "Report problem" and send the zip file to johnt at jriver dot com.  Thanks.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: fyusmal on December 10, 2014, 11:03:00 am
Moved to it's own topic.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: mvilla on December 10, 2014, 11:13:46 am
Could you guys send us log files after you experience the freeze?  It's in the menu under Help / Logging.  You have to enable it first, then restart Media Center and wait until you have one or more spinning wheels, then go back to the menu and select "Report problem" and send the zip file to johnt at jriver dot com.  Thanks.

Hi John,
I've just sent my log as my problem remains also with latest release (46).
Many thanks for your time
Massimo
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on December 11, 2014, 09:34:01 pm
Not to dismiss mvilla's post, but since updating to .46, I've not had any crashes.  The change log doesn't indicate this was specifically addressed, but whatever you guys did, I'm immensely grateful.  Now I just hope that I didn't jinx myself by saying this. 
Title: Re: MC20 for Mac often "locks", will not respond
Post by: mvilla on December 12, 2014, 05:58:04 pm
Not to dismiss mvilla's post, but since updating to .46, I've not had any crashes.  The change log doesn't indicate this was specifically addressed, but whatever you guys did, I'm immensely grateful.  Now I just hope that I didn't jinx myself by saying this. 

Now I'm also fine.
just want to tell people - who experience a block all of a sudden - to verify the "Audio Device" settings in the Options as mine were restored to the default (Core Audio) and my DAC did not properly from that moment.
I do not know when happened but after I changed to the right settings, all is great again :-)
Massimo
Title: Re: MC20 for Mac often "locks", will not respond
Post by: captmark on December 12, 2014, 11:15:55 pm
I had this issues even grabbing Art work from the "get from internet link" on 40, but knock on wood it is ok on 46. I'm having another issue with the Analyzer display that I addressed on another topic
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on December 15, 2014, 12:40:35 am
I spoke too soon… mine hung over the weekend and I let it go but to no avail I had to force quit it.  I just sent the log to you JohnT.  I'm hoping it was a fluke and that I won't be experiencing any such locking up. In any case I sincerely appreciate the consideration! 
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on December 31, 2014, 11:08:31 am
I'm still getting persistent locking on the recent builds.  I would really appreciate consideration to help address this.  I've linked below the logs after having to force quit MC and reopening it:

http://www.datafilehost.com/d/17eebc7f

http://www.datafilehost.com/d/6d6f4d23

http://www.datafilehost.com/d/23088135

Title: Re: MC20 for Mac often "locks", will not respond
Post by: JimH on January 01, 2015, 03:11:55 am
Try letting it run.

Try importing a single directory or a single file type at a time.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on January 01, 2015, 07:34:48 pm
Thank you Jim for the consideration.  These locks usually happen when I'm away from home and listening to my music via JRemote.  And when it locks up I can't do anything else but wait till I get home or open my laptop to quit the application which is usually after work.  So the only way to fix these freezes is to force quit the app because after 8 to 12 hours it should be back to normal. 
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JimH on January 02, 2015, 02:03:42 am
Try turning off auto import.  Something may not be thread safe.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on January 02, 2015, 09:32:03 pm
I'll do that for now and see if it helps, but I am hoping that disabling features would only be a temporary fix.  

Here's the link to my latest freeze.  It froze in the morning and I just force quit the app: http://www.datafilehost.com/d/118b784f

Title: Re: MC20 for Mac often "locks", will not respond
Post by: cyoutsey on January 03, 2015, 10:31:37 am
I've also been struggling with regular hang-ups requiring a force quit. Seems to occur primarily when playing music (ie, not sitting idle). Typically occurs within 12 hours, especially if I set a playlist to repeat. Tried disabling auto import, as well as disabling media key handling suggested in another thread.

Here are links to recent log files. Am a big JRiver fan, really hope a fix can be found.

https://www.dropbox.com/s/4tvzb2kc1nywm17/JRiver%20Log%202015-01-02%2016-35-54.zip?dl=0
https://www.dropbox.com/s/t1no8ejnbf5k88s/JRiver%20Log%202015-01-02%2009-27-16.zip?dl=0
https://www.dropbox.com/s/3000d7gfi387lng/JRiver%20Log%202015-01-01%2018-43-09.zip?dl=0
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on January 04, 2015, 10:54:34 pm
Yes, the disabling of auto import did not help.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on January 15, 2015, 10:51:21 pm
Here's my latest log of MC hanging and going into indefinite non-responsive mode.  Don't know whether this is being looked at…

https://www.dropbox.com/s/icybwzd640zg98r/JRiver%20Log%202015-01-15%2020-48-02.zip?dl=0
Title: Re: MC20 for Mac often "locks", will not respond
Post by: bob on January 16, 2015, 10:46:32 pm
Here's my latest log of MC hanging and going into indefinite non-responsive mode.  Don't know whether this is being looked at…

https://www.dropbox.com/s/icybwzd640zg98r/JRiver%20Log%202015-01-15%2020-48-02.zip?dl=0
Would you try the latest build (57) and if it still happens? If it does, turn off Media Network and try again (trying to pin it down).
You can still use Gizmo, JRemote with Media Network disabled since they use the web api (obviously not any DLNA DACS though).
Title: Re: MC20 for Mac often "locks", will not respond
Post by: cyoutsey on January 17, 2015, 10:22:13 am
I get more robust operation if I am playing from memory. I've been stress testing MC by playing tracks continuously. Without memory play, it always hangs 6-10 hours. When playing from memory, it has not hung after 48 hours. This is on build 54, will try to replicate with 57.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on January 18, 2015, 11:40:59 pm
Would you try the latest build (57) and if it still happens? If it does, turn off Media Network and try again (trying to pin it down).
You can still use Gizmo, JRemote with Media Network disabled since they use the web api (obviously not any DLNA DACS though).

Sincerely, thank you Bob for the consideration!  I installed .57 when I came home from work on Friday and so far so good.  No hangups.  Now I haven't stress tested it like cyoutsey may have, and I have not needed to disable the Media Network (yet), knock on wood, but if it hangs up I will do that next before returning here and seeing if MC could be sustained off of that. 
Title: Re: MC20 for Mac often "locks", will not respond
Post by: cyoutsey on January 19, 2015, 10:28:02 am
I've been running build 57 since Saturday morning continuously, and not in memory mode, without any issues.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on January 21, 2015, 12:24:22 am
I experienced another instance of a memory hang.  And when I disabled Media Network, I couldn't connect to the server from JRemote. 

https://www.dropbox.com/s/p9svnfhuvkj7jbj/JRiver%20Log%202015-01-20%2007-57-54.zip?dl=0
Title: Re: MC20 for Mac often "locks", will not respond
Post by: cyoutsey on January 21, 2015, 09:18:15 am
I spoke too soon, have now seen a couple more hangs with and without memory play. Do you want to see more log files?
Title: Re: MC20 for Mac often "locks", will not respond
Post by: bob on January 22, 2015, 10:14:08 am
I experienced another instance of a memory hang.  And when I disabled Media Network, I couldn't connect to the server from JRemote. 

https://www.dropbox.com/s/p9svnfhuvkj7jbj/JRiver%20Log%202015-01-20%2007-57-54.zip?dl=0
Sorry, I thought the API was still active with Media Network disabled but it appears that's not the case.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: czapp on January 25, 2015, 01:42:16 pm
Hi
I'm running .60 and this lockup problem is driving me crazy. Happened on .40 as well.
Has there been any resolution to this? MC is just not usable with these constant freezes.
Please, any help would be greatly appreciated.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: druism on January 28, 2015, 04:16:15 am
I have found with 20.0.40 that MC20 just randomly stops and seizes solid and will only be released by Force Quit. The music server (2011 Mac Mini) seems to be unaffected, just a problem with MC20. It stops when playing a playlist, which is controlled by JRemote and or a screen sharing Mac Pro in the office. This is normal and how I have used MC since ever. The tracks on which it stops are fine and they play fine when I restart the app. I have rebooted the Mini and have run the usual checks but I am pretty sure it is just MC20. It will play for two or three hours without a problem and then just stop, mid track, and it will not recover. I have upgraded to the latest version today and will report in if it does it again. For information which may be relevant: The library is on the Mini, which has 8GB RAM. It feeds a Gold Note DAC by USB. The Mini is headless with a screen emulator plug and is controlled from an iPad, an iPhone and / or the Mac Pro using Screen Sharing. The OS on the Mini is OS X 10.10.1. The playlists are composed of AIFF, Apple Lossless and some MP3 files of varying quality but there is no common factor in the file type, as far as I can tell. Because it only happens after a long spell of playing it seems it can only be induced by a playlist; album lengths do not seem to be long enough for the problem to occur, so I am wondering if it is something to do with a cache.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JimH on January 28, 2015, 07:07:44 am
Try turning off auto import.  We found a problem this week where MC was trying to import image files. 

Or set up auto import so it doesn't import image files.

This will be fixed soon.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on January 30, 2015, 11:18:04 am
I'm still getting frequent locking.  And I just updated to .64.  Here's my latest log from ten minutes ago.  I am not importing any photos/images.  But even if I disable auto import it still locks up.  

https://www.dropbox.com/s/2ri9wyuqp3mxrn2/JRiver%20Log%202015-01-30%2009-05-20.zip?dl=0
Title: Re: MC20 for Mac often "locks", will not respond
Post by: czapp on February 02, 2015, 08:52:42 am
I have disabled auto import and I am still getting frequent lockups. It has reached a point where it happens consistently after a couple of hours of listening.I am running version 20.60 on a late 2012 mini, running 10.10.1. I can't recall at which point this problem started, but it has been an issue through several updates.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: czapp on February 03, 2015, 10:21:17 am
Hi John
Is this problem being addressed, or is it a dead issue?
Title: Re: MC20 for Mac often "locks", will not respond
Post by: renef on February 05, 2015, 04:55:38 pm
Hi, I have Mc 20.0.64 and I also experience that wheel of death. The only way is to turn off the mac. I have waited half a day at one point to see if MC would get going again to no avail. I am using OSX 10.8.5. Hope someone has a solution.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JimH on February 05, 2015, 05:37:31 pm
Try importing a single file type at a time.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on February 09, 2015, 01:46:31 pm
Here's my latest hang log: https://www.dropbox.com/s/19fkwid57ux4gui/JRiver%20Log%202015-02-09%2011-44-17.zip?dl=0
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Matt on February 09, 2015, 01:57:46 pm
Here's my latest hang log: https://www.dropbox.com/s/19fkwid57ux4gui/JRiver%20Log%202015-02-09%2011-44-17.zip?dl=0

The main thread registers this:
54242057: 1949954816: General: CMCUICore::SystemPowerManager_UpdateActions: Start

And then just goes into la la land.

Is this a Mac log?  Because I thought only Windows ran that function.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on February 10, 2015, 02:22:33 am
Not a Windows log.  I have not touched a Windows device for over six years now :D.  The logs are coming from the JRiver install on my 2010 Mac Mini with Yosemite.  
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JohnT on February 10, 2015, 08:54:55 am
Hi John
Is this problem being addressed, or is it a dead issue?
Can you send a Media Center log file after a lock up?  It might help track down the problem if we can find some commonality with the ones Afrosheen has provided.  We've had some issues in the past with m4a ALAC files, do you have a lot of those in your collection?
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JohnT on February 10, 2015, 10:19:17 am
Not a Windows log.  I have not touched a Windows device for over six years now :D.  The logs are coming from the JRiver install on my 2010 Mac Mini with Yosemite.  
Your other logs didn't show the SystemPowerManager hanging, so that may be a red herring.  We need to try to narrow down the source of the problem so we can add log statements to the appropriate area.  How easy is it to make this happen on your system?  If you could try turning off one of these features one at a time and see if the problem stops at some point, that would give us good information:

1. media networking
2. auto-import (maybe you've already testing this)
3. podcasting (under podcasts select Home and "disable auto download")

One thing that's a little unusual in your setup, is that you've specified the Media Center "Temp" directory to be inside your main Music folder.  Could you try changing back to the default location and see if that helps at all?  The default is /Users/<username>/Library/Application Support/J River/Media Center 20/Temp.  You set the location in Options / File Location / Temporary files.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on February 17, 2015, 01:28:42 am
Your other logs didn't show the SystemPowerManager hanging, so that may be a red herring.  We need to try to narrow down the source of the problem so we can add log statements to the appropriate area.  How easy is it to make this happen on your system?  If you could try turning off one of these features one at a time and see if the problem stops at some point, that would give us good information:

1. media networking
2. auto-import (maybe you've already testing this)
3. podcasting (under podcasts select Home and "disable auto download")

One thing that's a little unusual in your setup, is that you've specified the Media Center "Temp" directory to be inside your main Music folder.  Could you try changing back to the default location and see if that helps at all?  The default is /Users/<username>/Library/Application Support/J River/Media Center 20/Temp.  You set the location in Options / File Location / Temporary files.


Hi JohnT,

First off thanks for the consideration!  I sincerely appreciate it!  I apologize for not being able to get back to you.  I had a tough time installing the SSD drive in my Mac Mini.  I'm hoping that it may also address the memory hanging issues.  But if it doesn't, I'll come back and help narrow the issues as best as I can:

To answer the question on how easy it is to replicate the hang, it seems pretty random.  I can't figure out why it happens.  I know JimH believes it's an import issue, but after turning off auto-import for a week, I still experienced hangs.  Though if it hangs again I will list the which of the three I've disabled to see if it hangs again. 
Title: Re: MC20 for Mac often "locks", will not respond
Post by: windhoek on February 17, 2015, 04:22:31 am
I get hangs too and have tried the same sorts of potential remedies i.e. turn off auto-import, deselect pictures and videos from importing, but it still happens. I don't have a Mac Keyboard, so I'm reluctant to keep playing music because if it hangs, I have to hard-kill my Mac by powering off with the power button at the back of the machine and so have resorted to playing discs until there's a more reliable fix.

Fwiw, it's happened with stereo and m/c FLAC and stereo and m/c SACD ISO files and on JR 20.64
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on February 17, 2015, 04:43:22 pm
I get hangs too and have tried the same sorts of potential remedies i.e. turn off auto-import, deselect pictures and videos from importing, but it still happens. I don't have a Mac Keyboard, so I'm reluctant to keep playing music because if it hangs, I have to hard-kill my Mac by powering off with the power button at the back of the machine and so have resorted to playing discs until there's a more reliable fix.

Fwiw, it's happened with stereo and m/c FLAC and stereo and m/c SACD ISO files and on JR 20.64

You can call up the Activity Monitor app and force quit the app there. 
Title: Re: MC20 for Mac often "locks", will not respond
Post by: windhoek on February 18, 2015, 12:44:09 am
You can call up the Activity Monitor app and force quit the app there. 

Thanks for the info ;)

I haven't played anything on Mac Mini for a quite a few days, maybe even a week and I'm just up and having my morning coffee so my brain is a little fuzzy, but iirrc, when the hang happens, I get the rainbow wheel of complete freeze and can't open or close anything including the machine itself. I'll try playing something later to test this out though and if it works (assuming I get a hang), I'll know I can kill the programme rather than killing the machine which is what I've been doing.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: paul.raulerson on February 18, 2015, 04:37:46 pm
The main thread registers this:
54242057: 1949954816: General: CMCUICore::SystemPowerManager_UpdateActions: Start

And then just goes into la la land.

Is this a Mac log?  Because I thought only Windows ran that function.

Hey Matt - both Mike W. and I had this same issue in December, then it just "went away."  It just started reoccurring here about 4 days ago. If that is any help. There are some old log submissions in the thread where Mike reported it.

-Paul
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on February 22, 2015, 02:04:57 am
I experienced the first hang during this week.  The only thing that was significantly different was that I had left Safari open on my Mac Mini and I read some users here had some poor experiences with MC after Safari was opened.  In any case here's my log: https://www.dropbox.com/s/5sv8vsrtbc1qpp9/JRiver%20Log%202015-02-21%2023-37-03.zip?dl=0

Title: Re: MC20 for Mac often "locks", will not respond
Post by: windhoek on February 22, 2015, 10:59:04 am
I've had good success for the last few times I've played JRiver on my Mac Mini with no crashes/ hangs. I de-seleted all the stuff I don't use, Podcasts and video support etc, no automatic updating and set JR to 'Audio Only' and so far so good; early days, but so far so good...
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JohnT on February 23, 2015, 08:16:54 am
I've had good success for the last few times I've played JRiver on my Mac Mini with no crashes/ hangs. I de-seleted all the stuff I don't use, Podcasts and video support etc, no automatic updating and set JR to 'Audio Only' and so far so good; early days, but so far so good...
I wondered about Podcasts, since those showed up in Afrosheen's logs as well.  It would be great if someone could confirm that the problem goes away if podcast subscriptions are disabled.  In the meantime, I'll load up on podcasts and see if I can repro anything here.  Thanks for the report.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: paul.raulerson on February 23, 2015, 09:56:32 am
Are you running headless? If so, I bet you are having some issues with the video driver. Try a HDMI or a Thunderbolt "cheater" connected to the video interface. That worked for me, though of course, YMMV.

Here is the one I have been using with success.

http://www.macnews.com/2014/10/28/newertech-announces-headless-mac-video-accelerator

Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on February 23, 2015, 01:50:10 pm
I wondered about Podcasts, since those showed up in Afrosheen's logs as well.  It would be great if someone could confirm that the problem goes away if podcast subscriptions are disabled.  In the meantime, I'll load up on podcasts and see if I can repro anything here.  Thanks for the report.

I've disabled auto download from the main Podcasts page under "Home."  I'll update at the end of the week if I don't get any hangs.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on February 26, 2015, 08:59:14 am
I experienced another hang this morning and I had the podcasts disabled.

https://www.dropbox.com/s/ee9z19d9sjfvy8g/JRiver%20Log%202015-02-26%2006-57-15.zip?dl=0
Title: Re: MC20 for Mac often "locks", will not respond
Post by: JimH on February 26, 2015, 09:01:19 am
What version are you using?
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on February 26, 2015, 12:43:26 pm
I've been on .74 since the update came through on MC on Sunday.
Title: Re: MC20 for Mac often "locks", will not respond
Post by: Afrosheen on April 12, 2015, 11:56:01 pm
I'm starting to re-experience these locks now as they appear frequently on .87.  I will be returning to .80 unless more logs are requested. 

https://www.dropbox.com/s/5fnm255xqv9tj5x/JRiver%20Log%202015-04-12%2021-53-14.zip?dl=0
Title: Re: MC20 for Mac often "locks", will not respond
Post by: glynor on April 17, 2015, 01:21:52 am
This sure looks like a hang in the logs:

Code: [Select]
35588061: 230146048: Sharing Plugins: CUDPSocketReader::Accept: Start
35604543: 1910653696: General: CMCUICore::SystemPowerManager_UpdateActions: Start
35604544: 1910653696: General: CMCUICore::SystemPowerManager_UpdateActions: UI Mode: -1000; Playing: 1
35604544: 1910653696: General: CMCUICore::SystemPowerManager_UpdateActions: Disable screen power for user option to keep display on
35604544: 1910653696: General: CMCUICore::SystemPowerManager_UpdateActions: Finish (result: 4) (0 ms)
35616667: 230146048: Sharing Plugins: CUDPSocketReader::Accept: Select error.
35616667: 230146048: Sharing Plugins: CUDPSocketReader::Accept: Canceled.
35616667: 230146048: Sharing Plugins: CUDPSocketReader::Accept: Deleting socket
35616667: 230146048: Sharing Plugins: CUDPSocketReader::Accept: Finish (28606 ms)
35633939: 194191360: Playback: CMJWaveFeeder::Thread: Finished feeder loop (bCancel: 0, bPlayed: 1)
35633939: 194191360: Playback: CMJWaveFeeder::Thread: Sending EOF

Is .80 working properly after you reverted?