MP Hangs on Alt+TAB (1 Viewer)


Portal Member
August 17, 2010
Russian Federation Russian Federation
MediaPortal Version: v1.1.3.0
MediaPortal Skin: Blue3
Windows Version: Windows XP ( Service Pack 3 ) [5.1.2600.196608]
CPU Type: AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
HDD: ST3160815AS
Memory: DDR2 2048Mb
Motherboard: GA-M55plus-S3G v1
Video Card: ATI HD 4670 (1024 Мб)
Video Card Driver: - ATI Catalyst 9.0
Sound Card: integrated
Sound Card Driver: Realtek HD Audio
1. TV Card: none
Remote: Microsoft MCE
TV - HTPC Connection: VGA

This report opened as advised in thread:
The problem exist since I installed MP more than a year ago, so still the same across versions and seems not related to specific plugin etc, but maybe I'm wrong.

General setup description
I'm still too lazy to setup a separate box for MP, so use it on home PC. PC user is non-administrative (kids on board, yeah), but as soon as I found no way to set buffering percentage for OnlineVideos for non-admins, I'm using "runas administrator" for the MP. It starts on a 2nd monitor (TV) with a tab on taskbar. To switch back to MP when needed, I set ALT+TAB key sequence for GREEN button of Microsoft MCE remote (using IR suite translator).

So, The problem.
Very often, when I'm switching back to MP window, not obviously with remote, but even by pressing Alt+TAB on keyboard,
MP becomes unresponsive. If watchdog is active, it is possible to switch to and collect support info, MP comes back to life then.
If watchdog is inactive, there is no way to manage MP anymore until MP process killed.

Similar issues.
this workaround ("always on-top") is surely solves the problem, but this is not a solution for me, for sure - PC should be available for parallel users' tasks.
this last post in thread actually describes the same workaround i'm currently using.
Issue looks similar.


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  • Team MediaPortal
  • September 1, 2008
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    This is certainly unusual. I also use MP *a lot* in windowed mode with "always on top" disabled because my computer is used for other things. I'm unable to reproduce what you are experiencing. Even when I use EventGhost with a key mapping to start MP, MP detects that it is already running and does not open additional instances (or freeze etc...). Alt+tab does not cause any bad side effects either. I'm using almost the latest SVN version...



    Portal Member
    August 17, 2010
    Russian Federation Russian Federation
    mm1352000, thank you for your comment anyway.
    This is not a new problem, I'm facing it long ago and believe, the problem is somewhere between running MP with another credentials and IR mappings.
    Actually, as I referred above, just unattended watchdog option would be a great workaround for me.

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