/usr/bin/edid-decode

Usage: edid-decode <options> [in [out]]
  [in]                  EDID file to parse. Read from standard input if none given
                        and neither --infoframe nor --eld was not used, or if the
                        input filename is '-'.
  [out]                 Output the read EDID to this file. Write to standard output
                        if the output filename is '-'.

Options:
  -o, --output-format <fmt>
                        If [out] is specified, then write the EDID in this format.
                        <fmt> is one of:
                        hex:    hex numbers in ascii text (default for stdout)
                        raw:    binary data (default unless writing to stdout)
                        carray: c-program struct
                        xml:    XML data
  -c, --check           Check if the EDID conforms to the standards, failures and
                        warnings are reported at the end.
  -C, --check-inline    Check if the EDID conforms to the standards, failures and
                        warnings are reported inline.
  -n, --native-resolution Report the native resolution.
  -p, --preferred-timings Report the preferred timings.
  -P, --physical-address Only report the CEC physical address.
  -S, --short-timings   Report all video timings in a short format.
  -L, --long-timings    Report all video timings in a long format.
  -N, --ntsc            Report the video timings suitable for NTSC-based video.
  -X, --xmodeline       Report all long video timings in Xorg.conf format.
  -F, --fbmode          Report all long video timings in fb.modes format.
  -V, --v4l2-timings    Report all long video timings in v4l2-dv-timings.h format.
  -s, --skip-hex-dump   Skip the initial hex dump of the EDID.
  -H, --only-hex-dump   Only output the hex dump of the EDID.
  --skip-sha            Skip the SHA report.
  --hide-serial-numbers Hide serial numbers with '...'.
  --replace-unique-ids  Replace unique IDs (serial numbers, dates, Container IDs) with fixed values.
  -u, --utf8            Convert strings in EDIDs to UTF-8.
  --version             Show the edid-decode version (SHA).
  --diagonal <inches>   Set the display's diagonal in inches.
  -a, --i2c-adapter <dev> Use <dev> to access the DDC lines.
                        If <dev> starts with a digit, then /dev/i2c-<dev> is used.
  --i2c-edid		Read the EDID from the DDC lines.
  --i2c-hdcp		Read the HDCP from the DDC lines.
  --i2c-hdcp-ri=<t>	Read and print the HDCP Ri information every <t> seconds.
  --i2c-test-reliability [duration=<secs>][,sleep=<msecs>]
                        Read the EDID continuously for <secs> seconds (default=0=forever), with a sleep
                        of <msecs> milliseconds (default value is 50 ms) in between each read.
                        Report a FAIL if there are mismatches between EDIDs.
                        This tests the i2c communication towards the display.
  --std <byte1>,<byte2> Show the standard timing represented by these two bytes.
  --dmt <dmt>           Show the timings for the DMT with the given DMT ID.
  --vic <vic>           Show the timings for this VIC.
  --hdmi-vic <hdmivic>  Show the timings for this HDMI VIC.
  --cvt w=<width>,h=<height>,fps=<fps>[,rb=<rb>][,interlaced][,overscan][,alt][,hblank=<hblank>][,vblank=<vblank>][,early-vsync]
                        Calculate the CVT timings for the given format.
                        <fps> is frames per second for progressive timings,
                        or fields per second for interlaced timings.
                        <rb> can be 0 (no reduced blanking, default), or
                        1-3 for the reduced blanking version.
                        If 'interlaced' is given, then this is an interlaced format.
                        If 'overscan' is given, then this is an overscanned format.
                        If 'alt' is given and <rb>=2, then report the timings
                        optimized for video: 1000 / 1001 * <fps>.
                        If 'alt' is given and <rb>=3, then the horizontal blanking
                        is 160 instead of 80 pixels.
                        If 'hblank' is given and <rb>=3, then the horizontal blanking
                        is <hblank> pixels (range of 80-200), overriding 'alt'.
                        If 'vblank' is given and <rb>=3, then the vertical blanking
                        time is <vblank> microseconds (range of 460-705 or 300-440).
                        If 'early-vsync' is given and <rb=3>, then select early vsync.
  --gtf w=<width>,h=<height>[,fps=<fps>][,horfreq=<horfreq>][,pixclk=<pixclk>][,interlaced]
        [,overscan][,secondary][,C=<c>][,M=<m>][,K=<k>][,J=<j>]
                        Calculate the GTF timings for the given format.
                        <fps> is frames per second for progressive timings,
                        or fields per second for interlaced timings.
                        <horfreq> is the horizontal frequency in kHz.
                        <pixclk> is the pixel clock frequency in MHz.
                        Only one of fps, horfreq or pixclk must be given.
                        If 'interlaced' is given, then this is an interlaced format.
                        If 'overscan' is given, then this is an overscanned format.
                        If 'secondary' is given, then the secondary GTF is used for
                        reduced blanking, where <c>, <m>, <k> and <j> are parameters
                        for the secondary curve.
  --ovt (rid=<rid>|w=<width>,h=<height>),fps=<fps>
                        Calculate the OVT timings for the given format.
                        Either specify a RID or explicitly specify width and height.
  --list-established-timings List all known Established Timings.
  --list-dmts           List all known DMTs.
  --list-vics           List all known VICs.
  --list-hdmi-vics      List all known HDMI VICs.
  --list-rids           List all known RIDs.
  --list-rid-timings <rid> List all timings for RID <rid> or all known RIDs if <rid> is 0.
  -I, --infoframe <file> Parse the InfoFrame from <file> (or stdin if '-' was specified) that was sent to this display.
                        This option can be specified multiple times for different InfoFrame files.
  -E, --eld <file>      Parse the EDID-Like Data, ELD from <file> (or stdin if '-' was specified).
                        This option can be specified multiple times for different ELD files.
  -h, --help            Display this help message.