Hi all
Ive been experiencing tearing (whole screen not only xv), when composite is enabled and the nvidia drivers installed, even if i have vsync turned on .
also i have to say that if i enable the snow effect the tearing completely disappears and the fps plugin says kwin is running exactly at 61 fps (which is the right value) but if i turn of the snow effect the tearing eventually comes back.
that makes me think that only opengl apps are getting the vsync. (and the snow effect makes the whole desktop to be opengl drawn i guess).
also see
http://forum.kde.org/viewtopic.php?f=15&t=88200
http://www.nvnews.net/vbulletin/show...38#post2261238
HW:macbook pro 5,5
-GPU: nvidia geforce 9400m
SW: Kubuntu 10.04
-nvidia drivers: 195.36.15
-Xorg(server vendor version): 1.7.6
-KDE SC: 4.4.3
-QT:4.6.dontknow
Config:
-xorg.conf
-~/.xinitrc...
Option "NoLogo" "True"
Option "TripleBuffer" "True"
Option "DynamicTwinView" "False"
Option "BackingStore" "True"
Option "RenderAccel" "True"
Option "DamageEvents" "True"
Option "PixmapCacheSize" "1024000"
Option "AddARGBGLXVisuals" "True"
Option "AllowIndirectPixmaps" "True"
...
Driver "nvidia"
...
kwinrcexport __GL_SYNC_TO_VBLANK=1
#export QT_GRAPHICSSYSTEM=opengl ##I KNOW IT DOESN'T WORK BUT I WISH IT DID
nvidia-settings --load-config-only
nvidia-settings -a InitialPixmapPlacement=2 -a GlyphCache=1
. /etc/X11/xinit/xinitrc
Quote:
.nvidia-settings-rc[Compositing]
AnimationSpeed=2
Backend=OpenGL
CheckIsSafe=true
DisableChecks=true
Enabled=true
GLDirect=true
GLMode=TFP
GLTextureFilter=2
GLVSync=true
HiddenPreviews=6
RefreshRate=60
UnredirectFullscreen=true
#XRenderSmoothScale=true
...
...
0/SyncToVBlank=1
...
0/OpenGLImageSettings=1 # dont know what's this for
...
0/XVideoTextureSyncToVBlank=1
...
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