[mythtv-users] Nvidia picture size (SVIDEO)
Mark Howells
mark.howells at gmail.com
Wed May 4 19:18:55 UTC 2005
Hi,
I'm starting to make progress now with my mythtv box :) So much so
that I've been using it on my TV - even watched a movie last night.
Anyhow, the TV image is small and whatever I do to try and change it
appears to have no effect. The basic X screen appears as 4:3 (or so
it seems) and seems to fill the screen vertically. It's a widescreen
TV so I expect black borders down the side. However, when I switch to
watch TV (or a recording playback) I get a widescreen image
letterboxed into the 4:3. None of the settings I have tried appear to
make any difference. I seem to be so near yet so far.
I have tried using the overscan facility within Mythtv (0.18) but
settings higher that 20 cause picture corruption and still don't
change the size of the image.
I'm using a Geforce MX4000 and driving the TV via SVIDEO. The picture
quality seems OK for LiveTV but really grainy and flimmery
(interlaced?) for text and the X windows herringbone background.
I've been googling like donkey on drugs but haven't found anything
that makes _any_ difference to what I see on the screen.
Any help would be appreciated. I've enclosed relevant sections of my xorg.conf
Cheers
Mark
---- xorg.conf ----
Section "Device"
Identifier "geforce mx4000"
Driver "nvidia"
VideoRam 65536
# Insert Clocks lines here if appropriate
EndSection
Section "Device"
Identifier "tvcard"
Driver "nvidia"
VideoRam 65536
# Insert Clocks lines here if appropriate
Option "TVStandard" "PAL-I"
Option "TVOutFormat" "SVIDEO"
Option "ConnectedMonitor" "TV"
# This apprears to be ignored
Option "TVOverscan" "0.7"
EndSection
# **********************************************************************
# Screen sections
# **********************************************************************
# Any number of screen sections may be present. Each describes
# the configuration of a single screen. A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
Identifier "Screen 1"
Device "geforce mx4000"
Monitor "My LCD monitor
DefaultDepth 24
Subsection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection
Section "Screen"
Identifier "TVScreen"
Device "tvcard"
Monitor "tv"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "720x576"
EndSubSection
EndSection
# **********************************************************************
# ServerLayout sections.
# **********************************************************************
Section "ServerLayout"
Identifier "Simple Layout"
Screen "Screen 1"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection
Section "ServerLayout"
Identifier "tv"
Screen 0 "TVScreen" 0 0
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection
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