[mythtv-users] Problem editing recordings

[Jens Wilmer]

Hello,

I have some playback problems on my mythtv boxes. I'm using "Mythbuntu", 
Mythtv on minimal a ubuntu with xfce, Backend is a core 2 duo with an 
old nvidia graphics card and 4 WinTV Nova HD S2 used for recording and 
playback. Separate Frontend is an AMD based barebone.
No problem with continuous playback on both frontends, but while editing 
on the separate Frontend (AMD Barebone) skipping one frame forward from 
frame x to frame y and one frame back shows frame x as position and 
frame y as picture, so i don't really know what picture really belongs 
to the frame.
On the Frontend of the Backend everything has been O.K. until recently, 
when a crashing Frontend changed/deleted/corrupted parts of the 
configuration (At the next start the theme changed to a them i did not 
use before). Since then editing recordings became nearly impossible 
because of the skipping behaviour. In editing mode Skipping a step 
greater than 5 seconds results displaying the destination frame for a 
split second before jumping back to the frame where the skip started. So 
skipping through the whole file results in the display not moving except 
the short flickering of frames. Skipping 5 Seconds or less results in 
"random" frames being displayed, sometimes the frame displayed changes, 
sometimes it doesn't. Skipping single frames seems drag the position 
behind, the displayed framenumber is changed in accordance to the 
movement. The Picture is one movement behind. if a skip a frame forward, 
the picture moves one frame forward. but changing the direction results 
in the picture changing the direction one step behind. "frame indicated" 
-> "frame shown":
1-> 1; Startposition
2-> 2; one frame forward, next frame shown
3-> 3; one frame forward, next frame shown
2 -> 4; one frame backward, next frame shown
1 -> 3; one frame backward, previous frame shown
0 -> 2; one frame backward, previous frame shown
1 -> 1; one frame forward, previous frame shown
2 -> 2; one frame forward, next frame shown...

What could be done to get it usable again?