Re: Debian with HiDPI / 4K displays

[Vincent Lefevre <vincent@vinc17.net>]

On 2015-08-08 20:58:37 +0200, Daniel Pocock wrote:
> So, is there any strategy for HiDPI with Debian?  Is a BTS tag needed to
> track such issues perhaps?  Or is it already dealt with in unstable and
> people just have to wait for it?

I have similar problems with a 3200x1800 15" screen. Here's my
Xresources file for high DPI:

! X resources for high-definition screens

! This will define the unit for the font sizes below.
Xft.dpi:		132

Emacs*font:		Monospace 10
Emacs*geometry:		80x48

! With the following, the width should be $((11*COLUMNS+13)) pixels;
! in contrast, the fixed = 6x13 bitmap font is typically used on a
! low-definition screen, giving a width of $((6*COLUMNS+13)) pixels.
XTerm*faceName:		Monospace
XTerm*faceSize:		10
! For xterm menus. This font is large enough, but a bit ugly.
XTerm*font:		-adobe-helvetica-bold-r-normal--0-0-0-0-p-0-iso8859-1

! The fontList resource is not documented, but found in "xpdf/XPDFApp.cc".
Xpdf*fontList:		-adobe-helvetica-bold-r-normal--0-0-0-0-p-0-iso8859-1
Xpdf.initialZoom:	200

--------

and my firefox.cfg file:

// IMPORTANT: Start your code on the 2nd line
var hdef = getenv("X11_HDEF");
if (hdef >= 2400) {
  pref("layout.css.devPixelsPerPx", "1.77");
} else {
  pref("layout.css.devPixelsPerPx", "-1.0");
}

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)