MediaPortal Wiki 
3rd party bugs Knowledge Base
This page contains all known bugs from drivers, codecs, Windows, etc. which cause issues in MediaPortal.
Contents
Display Issues
DVD Menus are black
Reason:
The DVD Navigation filters are very sensible to the video and audio filters (codecs) you use.
- If these filters are "incompatible", then you might encounter none working DVD Menues.
Solution:
- The only solution for this issue is to use a working combination of "DVD Navigator" and Audio, Video-Codecs.
- It's known that the inbuild DVD Navigator and Audio/Videocodec of Windows Vista are working well together.
- The DVD Navigator and Audio/Video Codec from PowerDVD7 are working very well too.
Video Playback is black
Reason:
There is a bug inside DirectX which causes a problem that as soon as you increase the DPI for the fonts in Windows, the video playback in MediaPortal becomes black.
Solution:
The only way to avoid the display problem in MediaPortal is to set the DPI setting to Windows default.
MediaPortal gets minimized to tray when playback of an avi is started
Reason:
The divx tray icon/tool causes that MediaPortal and other applications like gb-pvr minimize to the tray when you start to play an avi which uses the divx codec.
- This issue only occurs if you comply the following criterias:
MediaPortal runs maximized/fullscreen
MediaPortal uses exclusive mode
MediaPortal uses VMR9 as videorenderer
- playback of the videofile uses divx-codec
A bugreport has been submitted at the divxlabs.
Solution 1:
Download the DivX Tray Icon Toggle Tool and dissable the divx tray tool/icon.
NOTE:
If you use this tool on Vista you have to select the compatibility mode "WindowsXP" by right clicking the downloaded .exe file and then select properties.
Solution 2:
Enable the "EVR" renderer instead of the VMR9.
To do that go to "MediaPortal Configuration", switch to "expert mode" and then select "?DirectShow Filter Control" where you will find the "Video Renderer Settings".
Solution 3:
If you do not want to use the EVR of Windows Vista or the Divx Icon Toggle Tool, then you can also uninstall the divx codec and use another codec like xvid instead.
Aspect Ratio is wrong when using MPV
Reason:
- It is a known bug inside MPV that it is not able to detect the aspect ratio (AR) of a video. Codecs like Cyberlink or Nvidia Purevideo do not have this problem.
Solution:
- There is no known fix for this bug.
Audio Issues
No audio on some channels
Reason 1:
- Sometimes this happens when you selected "S/PDIF passthrough" in the codec configuration and connect your TV with analog stereo to the HTPC. This means that on channels which broadcast AC3 audio, you won't hear anything from your TV speakers, because "S/PDIF passthrough" is selected.
Solution:
- Either choose "decode to speakers" in the filter configuration, or connect the SPDIF of your HTPC to your Dolby Digital-capable receiver.
Reason 2:
If the TV channel where this issue occurs contains an MPEG1 mono audio channel, then you will have to choose an audio codec which is able to process this audio stream.
Solution 1:
Choose ffdshow as audio codec.
Open ffdshow audio decoder configuration -> codecs -> MP1,MP2 to mp3lib + Apply & OK
Solution 2 (for Vista users):
Choose Microsoft DD decoder as audio codec.
No audio for some seconds when using skip steps / fast forward
Reason:
This is a specific issue with some codecs like Cyberlink. You watch an movie or TV and after you used the skip steps or FF/FR the video plays but there is no audio for ~10 seconds.
Solution 1:
- Select a different audio codec like MPA.