Arch Linux

raw235

Member

Registered: 2010-05-03

Posts: 3

XBMC/mplayer and KDE Desktop effects

Hi,

i have setup a arch based HTPC with XBMC on top of KDE, but there is one thing i were not able to resolve: The XBMC GUI and playing a video on it gets laggy as soon as i DISABLE the kde desktop effects. My system is i3/sandy bridge based with integrated intel graphics, vaapi installed.

1. tried different playback settings within XBMC, same results
2. as soon as i disable the kde desktop effects, xbmc becomes slow and laggy, even if i dont restart it, if i enable desktop effects its smooth again
3. mplayer reacts the same way when used with -vo gl or -vo gl2, so it could be somehow opengl related. With -vo xv it runs smooth in both configurations.
4. Cpu load is constantly <20%
5. tried as root user, same results
6. glxinfo reports direct rendering is enabled

so any ideas how to resolve that problem? or how to find out whats going on?

you may ask why i want to disable desktop effects, well with desktop effects on, videos run almost perfect, but sometimes there are smaller lags that, i guess, can be related to the desktop effects eating resources, so i want to try without them.

here is the custom part of my xorg config, tearfree was needet to get a vsync-enabled video playback:

#20-intel.conf
Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "AccelMethod"  "sna"
   Option "TearFree" "true" 
   #Option      "AccelMethod"  "uxa"
   #Option      "AccelMethod"  "xaa"
EndSection
Section "dri"
   Mode 0666
EndSection