Video playback fractures

[Adnanius]

Hi,
I'm having video 'fractures' as horizontal lines when I play any video file
I'm using gutsy, and the nvidia-glx driver.
What should I do ?

[chewearn]

This will not be a 100% fix, but it might help minimize the artifacts. Run nvidia-settings, enable all checkboxes with "Sync to Vblank".

Alternatively, you might want to disable compiz, if video picture quality is of utmost importance.

[Adnanius]

Hi,
Actually I'm using the nvidia-glx driver, so I believe I cant use the nvidia-settings package. Is this something doable by editing xorg ?
I tried different resolutions and different refresh rates (actually, there was one refresh rate available for every resolution in the System>Preferences>Screen Resolution Preferences: 50 for 1280x800 which I use). Same problem.
This is my xorg.conf:

# xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc105"
	Option		"XkbLayout"	"fr"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"	"/dev/input/mice"
	Option		"Protocol"	"ImPS/2"
	Option		"ZAxisMapping"	"4 5"
EndSection

Section "InputDevice"
	Identifier	"Synaptics Touchpad"
	Driver		"synaptics"
	Option		"SendCoreEvents"	"true"
	Option		"Device"	"/dev/psaux"
	Option		"Protocol"	"auto-dev"
	Option		"HorizEdgeScroll"	"0"
EndSection

Section "InputDevice"
	Driver		"wacom"
	Identifier	"stylus"
	Option		"Device"	"/dev/input/wacom"
	Option		"Type"	"stylus"
	Option		"ForceDevice"	"ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
	Driver		"wacom"
	Identifier	"eraser"
	Option		"Device"	"/dev/input/wacom"
	Option		"Type"	"eraser"
	Option		"ForceDevice"	"ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
	Driver		"wacom"
	Identifier	"cursor"
	Option		"Device"	"/dev/input/wacom"
	Option		"Type"	"cursor"
	Option		"ForceDevice"	"ISDV4"# Tablet PC ONLY
EndSection

Section "Device"
	Identifier	"nVidia Corporation NV17 [GeForce4 440 Go 64M]"
	Driver		"nvidia"
	Busid		"PCI:1:0:0"
	Option		"AddARGBVisuals"	"True"
	Option		"AddARGBGLXVisuals"	"True"
	Option		"NoLogo"	"True"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	Horizsync	28-50
	Vertrefresh	43-75
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"nVidia Corporation NV17 [GeForce4 440 Go 64M]"
	Monitor		"Generic Monitor"
	Defaultdepth	24
	SubSection "Display"
		Modes		"1280x800"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
  screen "Default Screen"
	Inputdevice	"Generic Keyboard"
	Inputdevice	"Configured Mouse"
	
	# Uncomment if you have a wacom tablet
	#	InputDevice     "stylus"	"SendCoreEvents"
	#	InputDevice     "cursor"	"SendCoreEvents"
	#	InputDevice     "eraser"	"SendCoreEvents"
	Inputdevice	"Synaptics Touchpad"
EndSection

[chewearn]

Not sure about not being able to use nvidia-settings with nvidia-glx driver: I will take your word for it.

You can disable dynamic twinview. This way, nvidia driver will report the correct refresh rate to xrandr. Then, enable "Sync to Vblank" in CCSM (compizconfig-settings-manager).

Link here, see the explanation under the Dynamic Twinview section:
http://us.download.nvidia.com/XFree8...hapter-13.html


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