Фризы при воспроизведении видео.

Сильно подозреваю шо используется фреймбуфер, размер которого мал.
Еще бы посмотреть на /etc/X11/xorg.conf,  ту его часть где загружаемые модули,либы и опции видеоинтерфейса.

Скажи лучше, какой параметр за фреймбуфер отвечает

Добавлено спустя     1 минуту   15 секунд:
/etc/X11/xorg.conf

# File generated by XFdrake (rev 247269)

# **********************************************************************
# Refer to the xorg.conf man page for details about the format of
# this file.
# **********************************************************************

Section "ServerFlags"
    #DontZap # disable <Ctrl><Alt><BS> (server abort)
    #DontZoom # disable <Ctrl><Alt><KP_+>/<KP_-> (resolution switching)
    AllowMouseOpenFail # allows the server to start up even if the mouse does not work
EndSection

Section "Module"
    Load "dbe" # Double-Buffering Extension
    Load "v4l" # Video for Linux
    Load "extmod"
    Load "type1"
    Load "freetype"
    Load "glx" # 3D layer
    Load "dri" # direct rendering
EndSection

Section "InputDevice"
    Identifier "Keyboard1"
    Driver "kbd"
    Option "XkbModel" "pc105"
    Option "XkbLayout" "us(alt-intl)"
    Option "XkbOptions" "compose:rwin"
EndSection

Section "InputDevice"
    Identifier "Mouse1"
    Driver "mouse"
    Option "Protocol" "ExplorerPS/2"
    Option "Device" "/dev/mouse"
EndSection

Section "InputDevice"
    Identifier "Mouse2"
    Driver "evdev"
    Option "device" "/dev/input/by-id/usb-A4Tech_Wireless_Battery_Free_Optical_Mouse-event-mouse"
    Option "HWheelRelativeAxisButtons" "7 6"
EndSection

Section "Monitor"
    Identifier "monitor1"
    VendorName "Plug'n Play"
    ModelName "SyncMaster"
    HorizSync 30-71
    VertRefresh 50-160
EndSection

Section "Device"
    Identifier "device1"
    VendorName "ATI Technologies Inc"
    BoardName "ATI Radeon X1300 and later"
    Driver "fglrx"
    Option "DPMS"
EndSection

Section "Screen"
    Identifier "screen1"
    Device "device1"
    Monitor "monitor1"
    DefaultColorDepth 24
   
    Subsection "Display"
        Depth 8
        Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
    EndSubsection
   
    Subsection "Display"
        Depth 15
        Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
    EndSubsection
   
    Subsection "Display"
        Depth 16
        Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
    EndSubsection
   
    Subsection "Display"
        Depth 24
        Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
    EndSubsection
EndSection

Section "ServerLayout"
    Identifier "layout1"
    InputDevice "Keyboard1" "CoreKeyboard"
    InputDevice "Mouse1" "CorePointer"
    InputDevice "Mouse2" "SendCoreEvents"
    Screen "screen1"
EndSection