Arch Linux

karbon

Member

Registered: 2010-06-29

Posts: 17

Screen flickers when compositing enabled

Hello, guys. I encountered a problem when using compositing feature. My box equips with a Nvidia GeForce 8300GS graphic card, and I use the proprietary driver(nvidia 256.35-1). The problem is when the option "Enable desktop effects" in KDE's system-settings program is turned on, I will come across an annoying flicker when a compositing effect takes place, like Alt+Tab for window switching. When compositing option turned off, everyting goes well.

My Xorg-server's version is  1.8.1.902-1. The following is my xorg.conf file:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 256.35  (buildmeister@builder97.nvidia.com)  Wed Jun 16 19:15:05 PDT 2010

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Wondering where went wrong as I didn't come across such problem some months ago with older drivers. I'm a newbie and this is my first time to post a problem in the bbs. If I didn't provide enough information or I broke any rules here, please tell me what I should do. Thanks for any help in advance! And forgive me for my poor English, which is not my mother tongue.