[PATCH v2 app/xrandr] Document that --dpi and --fbmm options set DPI of whole X screen

[Pali Rohár]

Hi! I would like to remind this patch.

On Friday 18 August 2017 19:15:25 Pali Rohár wrote:
> PING xorg-devel list.
> 
> Is something older needed to rework? If not, can you apply this patch?
> 
> On Monday 07 August 2017 18:45:22 walter harms wrote:
> > Sorry, i had the idea you already got my ack.
> > 
> > Reviewed-by: Walter Harms wharms at bfs.de
> > 
> > Am 07.08.2017 12:56, schrieb Pali Rohár:
> > > walter, any other objections? I fixed problematic parts which you pointed.
> > > 
> > > On Monday 24 July 2017 20:34:39 Pali Rohár wrote:
> > >> Explicitly document and make it clear that those options do not change
> > >> DPI of some monitor output. Also state that these options have no useful
> > >> meaning for multi-monitor configuration.
> > >>
> > >> Signed-off-by: Pali Rohár <pali.rohar at gmail.com>
> > >> ---
> > >>  man/xrandr.man |   14 ++++++++++----
> > >>  1 file changed, 10 insertions(+), 4 deletions(-)
> > >>
> > >> diff --git a/man/xrandr.man b/man/xrandr.man
> > >> index 65ccc2a..a5476d4 100644
> > >> --- a/man/xrandr.man
> > >> +++ b/man/xrandr.man
> > >> @@ -232,14 +232,20 @@ fit within this size. When this option is not provided, xrandr computes the
> > >>  smallest screen size that will hold the set of configured outputs; this
> > >>  option provides a way to override that behaviour.
> > >>  .IP "\-\-fbmm \fIwidth\fPx\fIheight\fP"
> > >> -Sets the reported values for the physical size of the screen. Normally,
> > >> +Sets the reported values for the physical size of the whole X screen (not particular
> > >> +output!) which consists of all configured monitors. Physical size of the X screen does
> > >> +not have any meaning when monitors with different DPI are configured. Normally,
> > >>  xrandr resets the reported physical size values to keep the DPI constant.
> > >> -This overrides that computation.
> > >> +This overrides that computation. This option should be calculated from DPI
> > >> +value 96 as it not have any useful meaning for multi-monitor configuration.
> > >>  .IP "\-\-dpi \fIdpi\fP"
> > >>  .IP "\-\-dpi \fIfrom-output\fP"
> > >> -This also sets the reported physical size values of the screen, it uses either
> > >> +This also sets the reported physical size values of the whole X screen (not particular
> > >> +output!) which consists of all configured monitors. Physical size of the X screen does not
> > >> +have any meaning when monitors with different DPI are configured. This option uses either
> > >>  the specified DPI value, or the DPI of the given output, to compute an appropriate
> > >> -physical size using whatever pixel size will be set.
> > >> +physical size using whatever pixel size will be set (default 96 DPI). It does not
> > >> +have any useful meaning for multi-monitor configuration.
> > >>  .IP "\-\-newmode \fIname\fP \fImode\fP"
> > >>  New modelines can be added to the server and then associated with outputs.
> > >>  This option does the former. The \fImode\fP is specified using the ModeLine
> > > 
> 

-- 
Pali Rohár
pali.rohar at gmail.com