NAME

       nvtv — GUI to control TV output hardware settings

DESCRIPTION

       nvtv  is a small utility to control the output modes of TV-OUT encoders on many Nvidia-based video cards,
       as well as on the Voodoo3 video card. Use this with care, you may damage your hardware with a  wrong  set
       of   options!   You   can   find   more   detailed   descritiptions   of   each   option   in   the  file
       /usr/share/doc/nvtv/USAGE.gz .

OPTIONS

       -h --help
              Print help message

       --display hst:#
              X server to contact

       -m --tv-off
              TV off, switch to monitor

       -t --tv-on
              TV on

       -b --tv-bars
              Color bars

       -p --print
              Calculate and print register values

       -F --fetch
              Fetch current mode (use only for printing)

       -l --list
              List available modes on stdout. Must be combined with -T if hardware is  not  accessible.  Can  be
              combined  with -S. Fields are separated by tabs, and contain TV system, resolution, size, overscan
              compenstation percentage, and aspect in that order.

       -r --resolution x,y
              Select resolution (screen size in pixels)

       -o --overscan x,y
              Select overscan compensation percentage (as float)

       -s --size #
              Select size (for predefined modes)

       -S --system
              NTSC,NTSC-J,PAL,PAL-60,PAL-NC,PAL-M,PAL-M60,PAL-X,SECAM

              Select the TV system. PAL-X is a pseudo-PAL system with slightly different subcarrier frequencies.

       -C --connector
              AUTO, COMPOSITE, SVIDEO, BOTH, CONVERT

              Select the video connecter. CONVERT compensates for cheap SVideo  to  composite  converter  cables
              that don't merge both lines. FBAS and SVHS are still recognized for compatibility reasons.

       -T --chip <encoder type> or <bus>:<addr>
              Select  the  encoder  chip  by  I2C  bus  and  address,  or  by type (BROOKTREE, CONEXANT, NVIDIA,
              CHRONTEL1,C HRONTEL2,  PHILIPS1,  PHILIPS2).   CHRONTEL  and  PHILIPS  default  to  CHRONTEL1  and
              PHILIPS1.

       -A --card-addr <bus>:<slot>.<func>
              Graphics card pci address (hexadecimal), as given by lspci.

       -W --win-id id
              Select window by numerical id

       -w --win-name name
              Select window by name

       -c --center
              Center selected window

       -X --switch-mode
              Switch X mode

       -1     Use first head

       -2     Use second head (if available)

       -q --query
              Query status of display (monitor, TV, flatpanel)

       -P --probe
              Probe and print system information

       -N --nvdev
              Enable usage of /dev/nv* devices

       -g --gui
              Always use gui

       -n --no-root
              (only for debugging)

       -d --debug
              (only for debugging)

       --set name:val
              Specify the setting name with value val (see below).

SETTINGS

       A  complete list of all available settings can be obtained with the option -h. The values may be adjusted
       according to the capabilities of the TV encoder chip, and not all encoders support  all  settings.  Also,
       equal values may have different effects for different encoder chips.

       Settings include

       Contrast
              from -100 (percent) to 100 (percent).

       Saturation
              from -100 (percent) to 100 (percent).

       Brightness#
              from  -50  (percent)  to  50  (percent). This setting and the two following settings change the TV
              signal directly and should be used carefully.  Extreme values may degrade the  signal  up  to  the
              point where it cannot be properly displayed anymore.

       Contrast#
              from -50 (percent) to 50 (percent).

       Saturation#
              from -50 (percent) to 50 (percent).

       Phase  from -60 (degrees) to 60 (degrees).

       Hue    from -60 (degrees) to 60 (degrees).

       Flicker
              Flicker filter, from 0 (percent) to 100 (percent).

       AdaptFlicker
              Adaptive flicker filter, from 0 (percent) to 100 (percent).

       LumaBandwidth
              Bandwidth  filter  for the luminance channel, from 0 (percent) to 100 (percent).  Larger bandwidth
              gives more horizontal detail, but is also more sensitive to noise.

       ChromaBandwidth
              Bandwidth filter for the chrominance channel, from 0 (percent) to 100 (percent).

       Sharpness
              Sharpness (or text enhancement) filter, from 0 (percent) to 100 (percent).

       CrossColor
              Cross color reduction filter, from 0 (percent) to 100 (percent).

       Dualview
              Flag to dislay the image both on the monitor and the TV. Not supported for all modes.

       Monochrome
              Flag to display TV image in monochrome.

       Non-Interlaced
              Flag to display TV image in non-interlaced mode. Reduces vertical detail, but decreases flicker.

       Macrovision
              Flag to enable macrovision.

       FreeCarrier
              Flag to let the color carrier generator run free.

       Colorfix
              Flag to fix the color format for Philips encoder chips.

       AdjustCursor
              Flag to adjust cursor when in shared view dualhead mode.

       ViewportCursor (flag)
              Flag to adjust the TV viewport by cursor when in shared view dualhead mode.

       ViewportMonitor (flag)
              Flag to adjust the TV viewport by the monitor viewport when in shared view dualhead mode.

SEE ALSO

       The full documentation for nvtv is located in /usr/share/doc/nvtv/ directory.

AUTHORS

       Dirk Thierbach
       dthierbach@gmx.de

       Eduard Bloch, for the the Debian system.
       blade@debian.org

       Permission is granted to copy, distribute and/or modify this document under the terms of the BSD License.