[Pkg-xfce-devel] Bug#813379: xfce4-settings: Please also set DPI via RandR extension

Thomas Prokosch thomas-10-debbugs at nadev.net
Fri Feb 5 13:41:12 UTC 2016


On 02/05/16 11:02, Yves-Alexis Perez wrote:
> As far as I know it's not “some graphics hardware”. Xorg explicitely sets DPI
> to 96x96.

I have a machine at home where the resolution is set to the correct
value (ie not 96x96) without any further configuration (ie no xorg.conf
etc). But I have to admit that this combination of hardware is not too

> Can you explain what will forcing the resolution through XrandR will do?

Applications that are not based upon a toolkit but link with the X
libraries directly (in my case: the application is mupdf, it links with
libx11 and libxext) will profit from the correct setting. This effect is
in particular notable on a HiDPI display where every PDF I open with
mupdf is initially about the size of a stamp unless I use the RandR
extension to set the proper resolution.


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