[mythtv-users] Re: Mythtv, nvidia and tvout
Stephen Atkins
atkinss at shaw.ca
Tue Jul 13 21:18:16 EDT 2004
Hello all. I just wanted to post some of my config files in hopes that it helps
others. Not everyone will get these benifits. I'm using nvidia's drivers so
this won't help those with other cards. Here is my hardware so you have a base
to go by:
MoBo: Gigabyte GA-7N400 Pro2
Vid: FX5200 (VGA/TV/DVI outs)
CPU: Athlon 2500+
HD: 2x30Gig (video), 1x6Gig (as boot/os)
TV: Leadtek Winfast TV 2000XP Delux, ATI TV Wonder Pro (cx88) (with usb remote)
(doesn't currently work under myth).
Mem: 512Megs DDR
Some notes on Myth: I've updated the database adding kerneldeint to the video
filters because I don't have a keyboard on the machine so I need to ssh to it
and can't edit words in the setup screens. I've also clicked on Jitter
reduction and A/V sync. Thats about the only special things I have set in Myth.
I've attached my XF86Config and .nvidia-settings-rc files. As you can tell I'm
runing at 640x480. This is the best setup I've had so far and I've tried alot
of different options. If any one has any ways to improve this that would be
great. If it helps someone get a better system going then send $1.00 to Happy
Guy 123 Evergreen Terace Springfield...
Stephen
--XF86Config
Section "ServerLayout"
Identifier "XFree86 Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
RgbPath "/usr/X11R6/lib/X11/rgb"
ModulePath "/usr/X11R6/lib/modules"
FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
FontPath "/usr/X11R6/lib/X11/fonts/CID/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
EndSection
Section "Module"
Load "record" Load "extmod"
Load "dbe"
# Load "dri"
Load "glx"
Load "xtrap"
Load "type1"
Load "speedo"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "keyboard"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "ZAxisMapping" "4 5"
Option "Device" "/dev/input/mice"
EndSection
Section "Monitor"
#DisplaySize 350 260 # mm
Identifier "Monitor0"
VendorName "KDS"
ModelName "ions VS-190i"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "TV"
HorizSync 30-60
VertRefresh 50-120
DisplaySize 160 120
# ModeLine "640x480" 28.325 640 680 739 898 400 444 472 525
# ModeLine "640x440" 27.180 640 704 763 862 440 500 510 252
# ModeLine "640x480" 27.180 640 704 763 862 480 500 510 568
# Mode "NTSCi"
# DotClock 14.31818
# HTimings 600 728 792 896
# VTimings 400 444 452 526
# Flags "Interlace"
# EndMode
EndSection
Section "Device"
### Available Driver options are:-
### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
### [arg]: arg optional
Option "NvAGP" "2"
Option "NoLogo" "True"
#Option "NoRenderExtension"
#Option "UBB"
#Option "NoFlip"
#Option "DigitalVibrance"
#Option "Dac8Bit"
Option "Overlay" "True"
#Option "CIOverlay" "True"
#Option "TransparentIndex"
Option "OverlayDefaultVisual" "True"
#Option "SWCursor"
#Option "HWCursor"
#Option "CursorShadow"
Option "ConnectedMonitor" "TV"
Option "TVStandard" "NTSC-M"
Option "TVOutFormat" "COMPOSITE"
Option "TVOverScan" "0.0"
Identifier "Card0"
Driver "nvidia"
VendorName "nVidia Corporation"
BoardName "Unknown Board"
BusID "PCI:2:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "TV"
DefaultDepth 24
DefaultFbbpp 32
SubSection "Display"
Depth 24
FbBpp 32
Modes "640x480"
EndSubSection
EndSection
Section "ServerFlags"
Option "BlankTime" "0"
Option "StandbyTime" "0"
Option "OffTime" "0"
Option "SuspendTime" "0"
Option "NoPM" "True"
EndSection
--.nvidia-settings-rc
#
# /root/.nvidia-settings-rc
#
# Configuration file for nvidia-settings - the NVIDIA X Server Settings utility
# Generated on Sat Jul 3 12:22:03 2004
#
# ConfigProperties:
ToolTips = Yes
DisplayStatusBar = Yes
SliderTextEntries = Yes
IncludeDisplayNameInConfigFile = No
# Attributes:
0/DigitalVibrance[TV-0]=1
0/ImageSharpening[TV-0]=1
0/SyncToVBlank=1
0/LogAniso=3
0/FSAA=8
0/TextureSharpen=1
0/ForceGenericCpu=0
0/CursorShadow=0
0/CursorShadowXOffset=4
0/CursorShadowYOffset=2
0/CursorShadowAlpha=64
0/CursorShadowRed=0
0/CursorShadowGreen=0
0/CursorShadowBlue=0
0/FSAAAppControlled=0
0/LogAnisoAppControlled=0
0/RedBrightness=0.000000
0/GreenBrightness=0.000000
0/BlueBrightness=0.000000
0/RedContrast=0.000000
0/GreenContrast=0.000000
0/BlueContrast=0.000000
0/RedGamma=1.000000
0/GreenGamma=1.000000
0/BlueGamma=1.000000
0/TVOverScan[TV-0]=170
0/TVFlickerFilter[TV-0]=1
0/TVHue[TV-0]=0
0/TVSaturation[TV-0]=255
0/XVideoOverlaySaturation=4096
0/XVideoOverlayContrast=4096
0/XVideoOverlayBrightness=0
0/XVideoOverlayHue=0
0/XVideoTextureSyncToVBlank=1
0/XVideoBlitterSyncToVBlank=0
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org]On Behalf Of Chris Vargas
> Sent: Tuesday, July 13, 2004 10:29 AM
> To: mythtv-users at mythtv.org
> Subject: [mythtv-users] Re: Mythtv, nvidia and tvout
>
>
> --- Brian wrote:
> > I have been trying to get optimal picture in my
> > mythtv setup for many months now. My problem is
> > smooth playback...it seems to me that optimally, my
> > picture in MythTV should be of comparable quality
> > to my picture straight out of the
> > cable box into the TV.
> [snip]
>
> I think what both you and Thomas are seeing is the
> loss of interlaced playback of your interlaced PVR-x50
> recordings via the nVidia TV-out.
>
> If you have "deinterlace" turned on in MythTV
> playback, or if your TV out doesn't support
> "passthrough" of interlaced material (and thus is
> deinterlacing it), you will see a difference in
> viewing TV live vs. a recording.
>
> This will be most obvious in sports or live TV (since
> it started out as interlaced), and not as obvious in
> filmed material (since it started out as progressive
> (i.e. deinterlaced)).
>
> There are two recent long thread discussing this:
>
> http://gossamer-threads.com/lists/mythtv/users/75589
> http://gossamer-threads.com/lists/mythtv/users/75613
>
> There is one message in the second thread that was as
> close as I saw to a description on how to set up the
> TV-out so that the fields are maintained and passed
> through to the interlaced TV out (which is what the
> PVR-350 does, and why motion looks the same as the
> live signal).
>
> http://gossamer-threads.com/lists/mythtv/users/75666?#75666
>
> I haven't tried this yet but may do so soon, just to
> see if it can be done.
>
> Note that running at any resolution that scales your
> recorded signal's dimensions, either up or down, will
> effectively deinterlace your source, and you'll see
> the motion effects again.
>
> Some people have also reported better results with the
> new nVidia drivers and using the "HD480i" TVStandard
> mode.
>
> But IMO, this isn't really a case of "better" or
> "worse": it's a case of "right" and "wrong." You can
> certainly make the "wrong" case look better, via
> deinterlacing, etc. But it is basically just masking
> the issue.
>
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