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.