If you want to know why I need to know this, read paragraphs two and three for an explanation, but if you just want to solve my problem, then skip to the last paragraph.
I have recently gained a little experience with video 'tearing' in LinuxMCE and MythTV. I have a very decent NVIDIA graphics card that is capable of handling full UI2 (with alpha blending). The problem was that if I enabled alpha blending, any video playback would have an observable amount of tearing in it. This is nothing new, and is documented on other parts of this forum. However, I have noticed something else that causes tearing in MythTV, and if I was a little smarter I could have a solution to it. I know there are others out there (hopefully reading this) that are much smarter than I am, and could fix (or tell me how) in their sleep.
First of all, video playback never has any tearing when using LinuxMCE - and by that I mean xine. I noticed some tearing during playback using MythTV. Then I noticed that it was not all the time; I then proceeded to track it down to the following: After I play something through Media->Video, MythTV starts to tear. Before that (right after I reboot), MythTV plays just fine with no tearing. I noticed that after I play something through Media->Video, it leaves pluto-xine-playback-window open. If I do a 'sudo killall Xine_Player' then playback once again has no tearing in MythTV. But if I watch something again through Media->video, MythTV begins tearing again, and on goes the cycle...
All of this to say, I need to know how to add a command that kills the Xine_Player process when you press stop, or select 'Off" from the LinuxMCE menu. If anyone can help, this would be much appreciated. Hopefully you can tell from my post that I am not too lazy to figure out the solution to this; I am simply not smart enough. At any rate, this is an amazing piece of software, I am thoroughly impressed, and have very few problems with it. Thanks in advance.