[PATCH app/xdpyinfo v3] Use XRANDR 1.2 extension for reporting dimensions and resolution per output

[Pali Rohár]

On Thursday 12 April 2018 16:34:15 Adam Jackson wrote:
> This should print the RANDR data in a separate stanza after the main
> output, like the other extensions do. Again: the purpose of the core of
> xdpyinfo is to tell you what the connection block says. Don't make it
> print something else.

This patch does not change anything in the output when command line
option for RANDR is not used. Therefore you would get same output as
before (without applying patch).

And when RANDR is explicitly requested then it outputs correct dimension
information. Yes, it hides what is reported by connection block, but the
main problem is that this tools is not already used like you said. Users
and also scripts expects that they would get correct monitor/output
dimension from xdpyinfo and not something which do not match with their
physical monitor device.

As Giuseppe said, this seems like a good compromise. When no parameter
is specified then xdpyinfo reports exactly same data as without this
patch. And with this patch which adds support for optional RANDR
parameter, then it reports dimensions for each monitor/output correctly.
So users would see what they are already expecting and want.

-- 
Pali Rohár
pali.rohar at gmail.com