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Old 11-02-06, 11:11 AM   #1
jonnythan
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Join Date: Sep 2006
Posts: 4
Default Getting good DVD picture quality

I am running Ubuntu with xfce on a GeForce 6100-based motherboard. I have the nVidia drivers installed.

I'm using the computer as a video player, particularly for DVDs. I have noticed that the picture quality sucks. The contrast and color are awful. The contrast and color adjustments in xine and mplayer don't actually do anything. I can find no way to actually tweak the picture quality.

I've read some about Xvmc, but I'm not quite sure how to install/enable that, or if I even do.

Anyway, I guess I'm looking for help. I'm displaying this on a 50" plasma using the VGA connection at the plasma's native resolution of 1366x768. If I have to upgrade to another video card to get better picture quality, that's fine.

Also, I'm putting this smiley into this post because it's just awesome:
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Old 11-02-06, 03:52 PM   #2
Tonyt1234563
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Default Re: Getting good DVD picture quality

Which driver are you using? Is it the build in Ubuntu 8xxx driver? The nvidia-settings utility with 9xxx driver allows you to tweak things like sharpness, etc. You may want to post your xorg.conf file to get some pointers.

I have a similar card also on Ubuntu and the picture looks great.
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Old 11-02-06, 07:36 PM   #3
jonnythan
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Default Re: Getting good DVD picture quality

xorg.conf:
Code:
# /etc/X11/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 /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/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"
	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	Load	"bitmap"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

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

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

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

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

Section "Device"
	Identifier	"NVIDIA GeForce 6100"
	Driver		"nvidia"
	BusID		"PCI:0:5:0"
	VideoRam	64000
	Option		"UseFBDev"		"true"
EndSection

Section "Monitor"
	Identifier	"MX-50X3"
	Option		"DPMS"
	HorizSync	28-64
	VertRefresh	43-60
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"NVIDIA GeForce 6100"
	Monitor		"MX-50X3"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1280x1024" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x1024" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x1024" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1280x1024" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1280x1024" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1366x768" "1024x768" "800x600" "640x480"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	InputDevice     "stylus" "SendCoreEvents"
	InputDevice     "cursor" "SendCoreEvents"
	InputDevice     "eraser" "SendCoreEvents"
EndSection

Section "DRI"
	Mode	0666
EndSection
I"m not sure which driver version I'm using. I installed them a month or so ago.
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Old 11-02-06, 07:53 PM   #4
TPG
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Default Re: Getting good DVD picture quality

First your xorg.conf suck a lot.

Comment out the "Load dri", it is no needed with nvidia drivers also i could have give some problems.

i'd suggest to you to run some X configuration tool. Ubuntu should have one.
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