TVpermalink

juddery iPlayer Desktop playback on brand new Mac Mini

This discussion has been closed.

  • Message 1. Posted by Richard Smith (U14191770) on Wednesday, 28th October 2009 permalink

    I have a brand new Mac Mini (the latest version), and iPlayer playback is unwatchable on downloads.

    Playback on streaming is fine, and I can download files (although sometimes I suffer the "need to install iplayer" problem). My download rate is very high, around 16 Mbits/sec.

    The problem is apparent on everything I have tried so far, both standard def and high def. The playback is almost like stop motion animation, as if most of the frames are missing, and the problem occurs constantly and almost uniformly.

    Of course when there is movement or scene panning, the effect is terrible.

    As this is a completely new computer "out-of-the-box" and latest specification, I am completely lost how to resolve the problem.

    I have tried re-installing. The download iplayer files are on the internal hard drive. I have OS 10.6.1, 2GB memory, and an Intel 2.26GHz Core 2 Duo.

    I can watch other video (including high def) files without problem, it's just iPlayer.

    Any thoughts?

    complain

  • Message 2. Posted by Jo Wilson (U14195145) on Saturday, 31st October 2009 permalink

    I have exactly the same problem. It used to work fine until a couple of weeks ago. Now my iPlayer desktop uses an entire CPU core (and even uses 33% when it's idle!).

    Streaming in Safari is fine, but the downloads are unwatchable.

    Any ideas? Or do we just have to wait for the next update?

    Jo
    (OSX 10.5.8, 3.06GHz Core 2 Duo, 4GB RAM)

    complain

    This is a reply to this message.

  • Message 3. Posted by jbarr2193 (U14251033) on Thursday, 10th December 2009 permalink

    Now I feel a little better as I have exactly the same problem!

    I bought a mac mini last week as a dedicated HTPC and for the first couple of days I streamed only and was very pleased with the results. Then I downloaded a lot of files and went to watch them last night and saw the same jitter problem.

    My only consolation at this point is that there are others out there with the same issue and that it's a recent issue. That likely means the new iPlayer broke something and that it can be fixed.

    I've started a similar thread and will update this one if I get any joy


    complain

    This is a reply to this message.

  • Message 4. Posted by EggOnAStilt (U7111730) on Thursday, 10th December 2009 permalink

    Shame to buy something without checking it can actually do what you want first.

    smiley - friedegg

    complain

    This is a reply to this message.

  • Message 5. Posted by SteveO1961 (U14254874) on Sunday, 13th December 2009 permalink

    Not a very helpful post I have to say.

    Like some others, my MacBook Pro happily downloaded and played back on a 40 in screen no problems at all. I bought a Mac Mini with the same graphics specs etc and now suffer the exact same problem that others describe and worse, after downloading the latest version of IPlayer onto my new MacBook Pro, I find that will not play the downloads smoothly on either the 40in TV or the internal screen smoothly when 'full screen' is selected.

    In contrast, streaming the content is almost perfect. There is definitely a problem with the downloaded files.

    Steve.

    complain

    This is a reply to this message.

  • Message 6. Posted by EggOnAStilt (U7111730) on Sunday, 13th December 2009 permalink

    If I understand it correctly the iPlayer hits the processor hard, so whilst the graphic specs may be the same what about the processor ? Though again, I think that would normally cause a streaming issue, which you say is ok.

    I'm just trying to work out what you are doing with which kit, you say you have an old mac pro, that worked

    my MacBook Pro happily downloaded


    a new mac mini, that does not.

    I bought a Mac Mini



    and a new MacBook pro, that does not?

    downloading the latest version of IPlayer onto my new MacBook Pro



    smiley - friedegg

    complain

    This is a reply to this message.

  • Message 7. Posted by EggOnAStilt (U7111730) on Sunday, 13th December 2009 permalink

    If I have got that right, then you are in an excellent position to help here, you can give the specs of all the machines including OS and software versions, highlight any differences between the one that works and the ones that don't.
    Don't forget to mention how they are connected to the internet and any third party software that may be running in the background.

    smiley - friedegg

    complain

    This is a reply to this message.

  • Message 8. Posted by SteveO1961 (U14254874) on Sunday, 13th December 2009 permalink

    Ok,

    Old Macbook pro 15in (non unibody), 2.4 Ghz, 4GB RAM, Snow Leopard, Geforce 9400M graphics.

    Mac Mini, 2.53Ghz, 4GB RAM, Snow Leopard, Geforce 9400M graphics.

    New Macbook Pro 13in (unibody), 2.53 Ghz, 4GB RAM, Snow Leopard, Geforce 9400M graphics.

    All connected to a Time Capsule accessing the internet via O2 in excess of 10Mb/s.

    iPlayer 1.3x was running on Old MacBook Pro, iPlayer 1.4x running on Mac Mini and new MacBook Pro

    Tried downloading with no other programs running and get the same result.

    Connected to the TV via VGA or HDMI - same result.

    COMPARED TO:

    Polycarbonate MacBook (non unibody), 2.0GHz, 2GB RAM, Leopard (10.5.8), GMA950 graphics running iPlayer 1.3.12070 connected via HDMI cable which is working perfectly on the same TV as of around 30 mins ago.

    My next test will be to go back into Time Machine on my MacBook Pro and see if I can re-install the earlier version. I'll post the results one way or the other.

    Steve

    complain

    This is a reply to this message.

  • Message 9. Posted by EggOnAStilt (U7111730) on Sunday, 13th December 2009 permalink

    Browsers used and any adobe software versions? Has their been any patches?

    smiley - friedegg

    complain

    This is a reply to this message.

  • Message 10. Posted by SteveO1961 (U14254874) on Sunday, 13th December 2009 permalink

    OK,

    Dare I say solved.

    Have now gone back into Time Machine and re-installed iPlayer version 1.3.12070 on the New MacBook Pro. Downloaded the same TV program as the polycarbonate box mentioned above and I now am able to go 'full screen' on the 40in TV without a problem at all.

    Challenge now is to get that version onto the Mac Mini as it was never installed on that box to start with. I'm thinking that using Migration Assistant and taking applications and settings from the New MacBook Pro should do the trick.

    Hope this helps others.

    Steve.

    complain

    This is a reply to this message.

  • Message 11. Posted by EggOnAStilt (U7111730) on Sunday, 13th December 2009 permalink

    Snow leopard has been patched at least twice, were all your machines updated to the latest version?

    Which version/patch SL have you now running the old iPlayer that works?

    Did you update your adobes to the latest version? The first release of SL put an older version in.

    smiley - friedegg

    complain

    This is a reply to this message.

  • Message 12. Posted by SteveO1961 (U14254874) on Sunday, 13th December 2009 permalink

    My machines usually use the latest version (other than iPlayer right now) so current config is:

    SL 10.6.2
    Adobe Air 1.5.3
    Iplayer Version 1.3.12070

    and no jitters or out of sync voice on my Sony 40Z5800u.

    Previous MacBook Pro (which worked fine) also ran SL 10.6.2

    Steve.

    complain

    This is a reply to this message.

  • Message 13. Posted by John99 (U13871221) on Sunday, 13th December 2009 permalink

    Hi Steve,
    Thanks for posting details of what you have done.

    You appear to be showing, as others suggest that it may be the new iPlayer Desktop version causing a problem on some Macs.

    If you have the inclination and time then it would be interesting to see what happens if you now re-install the new version of Desktop without changing anything else on the one machine.
    Will that break the system again causing bad playback.
    (It may of course continue to work indicating some other variable was changed). Hopefully the BBC would then be in a position to replicate a similar experiment.

    If it does break the system it adds weight to the request to make available the old version of IPlayer Desktop as an alternative direct from the bbc, untill such time as the cause is identified and presumably in due course a revised version is released.

    John

    complain

    This is a reply to this message.

  • Message 14. Posted by SteveO1961 (U14254874) on Sunday, 13th December 2009 permalink

    Bearing in mind how easy it was to reload the old version from Time Machine, I may well do that (but TV is tied up right now) and my priority is to get the old version onto the Mac Mini.

    If I get to do it this eve, I'll post the results here. Judging by my experience though;

    New machines, new iPlayer - poor results
    Old Machines, Old iPlayer - good results
    New machine, Old iPlayer - good results,

    I'm fairly sure where the problem lies. But as always, exhaustive testing is best.

    Steve

    complain

    This is a reply to this message.

  • Message 15. Posted by EggOnAStilt (U7111730) on Sunday, 13th December 2009 permalink

    So 4 machines in total.
    If you put the latest iPlayer on this one does it still work?

    Polycarbonate MacBook (non unibody), 2.0GHz, 2GB RAM, Leopard (10.5.8), GMA950 graphics running iPlayer 1.3.12070 connected via HDMI cable which is working perfectly on the same TV as of around 30 mins ago.

    In other words is it the latest SL and latest iplayer and adobe that don't work? Will the latest iplayer and adobe work on the earlier SL?
    Have you already tried that? I'm losing track smiley - biggrin

    smiley - friedegg

    complain

    This is a reply to this message.

  • Message 16. Posted by SteveO1961 (U14254874) on Sunday, 13th December 2009 permalink

    OK,

    The iPlayer Desktop appears to be a 1.8Meg stand-alone app so I copied the 1.3x version over the network to my Mac Mini replacing the 1.4x version.

    I ran the same TV programme as I've used for all the tests and it was smooth and without problem.

    I deleted the 1.3x version from the Mac Mini and re-installed the 1.4x version and replayed the same programme. It was garbage.

    Deleted the 1.4x version again, re-installed 1.3x and restarted the programme - no problems at all. So, same hardware, same other variables but the different versions of iPlayer Desktop are producing different results.

    Anyone with Time Machine and the older version on there might want to go back. I for one am a happy bunny again after thinking I'd wasted over £600 on the Mac Mini.

    complain

    This is a reply to this message.

  • Message 17. Posted by EggOnAStilt (U7111730) on Sunday, 13th December 2009 permalink

    Many thanks Steve for all the effort smiley - star, at last someone who was prepared to put a lot in and who had the resources.

    If we could only get information like that all the time smiley - smiley

    smiley - friedegg

    complain

    This is a reply to this message.

  • Message 18. Posted by SteveO1961 (U14254874) on Sunday, 13th December 2009 permalink

    My work here is done smiley - smiley

    Hope this helps others.

    Steve.

    complain

    This is a reply to this message.

  • Message 19. Posted by Richard Smith (U14191770) on Sunday, 13th December 2009 permalink

    Steve

    That's great - how fortunate you had all the versions to do the side-by-side comparison, thanks for the effort. Hopefully this information convince the iPlayer development team to look into it.

    Now, just need to get hold of the old version of iPlayer while they (hopefully) find and fix the problem.

    Richard

    complain

    This is a reply to this message.

  • Message 20. Posted by Onslow The Cat (U13672446) on Sunday, 13th December 2009 permalink

    It's good that some diagnostic input from an enthusiastic poster has helped to show that there is a resolvable problem, and with a workaround.

    The same happened some time ago with BT Home Hubs constantly going off-line while streaming iPlayer programmes. There were enough posts with useful information for the tekkies to work out a solution in Flash.

    Let's hope that this problem gets resolved in a new Desktop release.

    This problem (and the Wii stuttering) might also bring a tale of caution about always updating to a new software version as soon as it's available. Unless it's fixing a bug, maybe better to wait and see what posts get put on the boards before upgrading, or make sure you have a regression path! smiley - winkeye

    complain

    This is a reply to this message.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.