[Marx1]

Hello
I have tearing in HD movies played by XBMC.
OS: 3.7-trunk-686-pae #1 SMP Debian 3.7.1-1~experimental.2 i686 GNU/Linux
XBMC: 2:12.0~git20130102.7a6cb7f-1
I don't what options to choose to minimize it.
The only which seems to work is to disable(?) vsync in advanced system properties (standard video options has no effect at all no matter what I choose). Then it works like this: UI is played as 1080p60 while movie is played as 1080p50. I don't like this settings however, because TV blacks out for a few seconds when changing mode.
While there is "driver decide" options I suspect there are some settings of intel driver which I can change, but I don't know where.
I've tried searching forum for tearing, but I didn't find anything helpfull (the only option is to disable HW acceleration which I don't want to do).

I've found this:
https://bbs.archlinux.org/viewtopic.php?id=146275
Is changing KDE settings the way to go?

Another link
https://bugs.freedesktop.org/show_bug.cgi?id=37686

[wsnipex]

V-Sync should always be ON. Do you run xbmc standalone or on top of a window manager? Note that compositing windows mangers like compiz or kwin cause problems. At the very least disable desktop effects/compositing for full screen windows and enable "Sync display to video refresh rate".

If the problem persists we need a debug log.

[Marx1]

I've tried few different options but no luck.
KDE has his own settings for vsync and which renderer to use.
I will try to run XBMC without window manager to see if it's problem with window manager.
What settings should I set inside XBMC? I know that I have to enable vsync in advanced system settings, but what about video settings?

[Marx1]

It was my fault. I had 60p set in kde. I set 50p, switched off effects in wm and now everything is fluent.