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List:       fedora-devel-list
Subject:    Re: F25 workstation, and (almost) hidpi displays
From:       David Airlie <airlied () redhat ! com>
Date:       2016-10-28 0:29:28
Message-ID: 1382890945.5680435.1477614568951.JavaMail.zimbra () redhat ! com
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----- Original Message -----
> From: "Kevin Kofler" <kevin.kofler@chello.at>
> To: devel@lists.fedoraproject.org
> Sent: Friday, 28 October, 2016 7:50:48 AM
> Subject: Re: F25 workstation, and (almost) hidpi displays
> 
> nicolas.mailhot@laposte.net wrote:
> > But, GTK core maintainers have always insisted those didn't exist (just
> > like they insisted on hardcoding 96 dpi, on the eve of Apple showing the
> > world it was arbitrary and obsolete).
> 
> The worst is that this mentality has infected the core X11 as well, also
> breaking KDE's code that would carefully compute the correct DPI, if only
> X11 would not go out of its way to lie to it about the physical screen size!

You could use the randr protocol to read the physical screen size,

DP-3-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm

Not sure what you think is hiding it, sounds like KDE is just broken.

Dave.
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