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162 lines
4 KiB
Groff
162 lines
4 KiB
Groff
.Dd February 6, 2017
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.Dt CHVIDEOMODE 1
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.Os
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.Sh NAME
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.Nm chvideomode
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.Nd interactively change the screen resolution
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.Sh SYNOPSIS
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.Nm
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.Op Fl \-show-all Ns "=" Ns Ar bool
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.Op Fl \-show-supported Ns "=" Ns Ar bool
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.Op Fl \-show-unsupported Ns "=" Ns Ar bool
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.Op Fl \-show-text Ns "=" Ns Ar bool
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.Op Fl \-show-graphics Ns "=" Ns Ar bool
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.Op Fl \-bpp Ns "=" Ns Ar bpp
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.Op Fl \-min-bpp Ns "=" Ns Ar min-bpp
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.Op Fl \-max-bpp Ns "=" Ns Ar max-bpp
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.Op Fl \-width Ns "=" Ns Ar width
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.Op Fl \-min-width Ns "=" Ns Ar min-width
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.Op Fl \-max-width Ns "=" Ns Ar max-width
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.Op Fl \-height Ns "=" Ns Ar height
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.Op Fl \-min-height Ns "=" Ns Ar min-height
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.Op Fl \-max-height Ns "=" Ns Ar max-height
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.Op Ar command ...
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.Sh DESCRIPTION
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.Nm
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changes the video mode by displaying an interactive menu containing a list of
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available modes, with an additional entry for entering a custom mode (if
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supported by the driver).
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If the mode change succeeds and
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.Ar command
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is specified,
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.Ar command
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is executed.
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If the mode change fails, the menu is redisplayed until cancellation or a
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successful mode change.
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.Pp
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By default,
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.Nm
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only displays supported text and graphical modes, but modes can also be
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explicitly filtered via options.
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Multiple filters can be specified, and only modes matching all filters will be
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displayed.
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If a filter has min and max options, setting it is equivalent to setting
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min and max to the same value; for example,
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.Fl \-bpp Ns "=" Ns Sy 32
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is equivalent to
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.Fl \-min-bpp Ns "=" Ns Sy 32 ,
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.Fl \-max-bpp Ns "=" Ns Sy 32 .
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Filters taking
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.Ar bool
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as an argument have possible values of
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.Sy true
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or
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.Sy false .
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If the same filter is specified multiple times, only the last specified value
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is used.
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.Pp
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The interactive key commands are as follows:
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.Bl -tag -width "1234567890"
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.It Up Arrow
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Move the selection up 1 item.
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.It Down Arrow
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Move the selection down 1 item.
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.It Escape
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Quit without changing video mode.
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.It Enter
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Change the video mode to the current selection.
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.El
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.Pp
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The options are as follows:
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.Bl -tag -width "12345678"
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.It Fl \-show-all Ns "=" Ns Ar bool
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Override all other filter options, displaying every mode if
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.Ar bool
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is
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.Sy true .
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(defaults to
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.Sy false)
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.It Fl \-show-supported Ns "=" Ns Ar bool
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Show supported video modes if
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.Ar bool
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is
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.Sy true .
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(defaults to
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.Sy true )
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.It Fl \-show-unsupported Ns "=" Ns Ar bool
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Show unsupported video modes if
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.Ar bool
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is
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.Sy true .
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(defaults to
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.Sy false )
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.It Fl \-show-text Ns "=" Ns Ar bool
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Show video modes available in text mode if
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.Ar bool
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is
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.Sy true .
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(defaults to
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.Sy true )
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.It Fl \-show-graphics Ns "=" Ns Ar bool
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Show video modes available in graphics mode if
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.Ar bool
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is
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.Sy true .
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(defaults to
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.Sy true )
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.It Fl \-bpp Ns "=" Ns Ar bpp
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Show video modes with bits-per-pixel equal to
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.Ar bpp .
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.It Fl \-min-bpp Ns "=" Ns Ar min-bpp
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Show video modes with bits-per-pixel greater than
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.Ar min-bpp ,
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inclusive.
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.It Fl \-max-bpp Ns "=" Ns Ar max-bpp
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Show video modes with bits-per-pixel less than
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.Ar max-bpp ,
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inclusive.
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.It Fl \-width Ns "=" Ns Ar width
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Show video modes with width equal to
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.Ar width .
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.It Fl \-min-width Ns "=" Ns Ar min-width
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Show video modes with width greater than
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.Ar min-width ,
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inclusive.
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.It Fl \-max-width Ns "=" Ns Ar max-width
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Show video modes with width less than
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.Ar max-width ,
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inclusive.
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.It Fl \-height Ns "=" Ns Ar height
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Show video modes with height equal to
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.Ar height .
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.It Fl \-min-height Ns "=" Ns Ar min-height
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Show video modes with height greater than
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.Ar min-height ,
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inclusive.
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.It Fl \-max-height Ns "=" Ns Ar max-height
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Show video modes with height less than
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.Ar max-height ,
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inclusive.
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.El
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.Sh EXIT STATUS
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.Nm
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exits with an exit status of 10 if the menu is quit, 11 if no modes are
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available, 12 if no modes are available after filtering, 13 if the terminal has
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no associated video devices, 127 if
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.Ar command
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failed to run, or 1 on any other error.
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If
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.Nm
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changes the video mode successfully,
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.Nm
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exits with the exit status of
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.Ar command
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if specified,
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or 0 otherwise.
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.Sh SEE ALSO
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.Xr chkblayout 1 ,
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.Xr dispmsg_issue 2 ,
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.Xr videomode 5
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.Sh BUGS
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.Nm
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only supports a single monitor.
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