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Author SHA1 Message Date
adisbladis 40f402cf65
display-managers: Import DBUS session bus address & Xauthority in systemd user session 2017-10-17 10:06:05 +08:00
rnhmjoj 3918385f29
nixos/compton: use xrender by default 2017-10-17 00:50:34 +02:00
rnhmjoj 36bbc3cfda
nixos/compton: improve options type-checking 2017-10-17 00:50:34 +02:00
Peter Hoeg 2cd4ebfe93 Revert "display-manager: systemd-udev-settle serves no purpose"
This reverts commit 3571163858.
2017-10-14 14:42:49 +08:00
Peter Hoeg f359096210 Revert "sddm: silence error about missing wayland directory"
This reverts commit 46a92333e9.
2017-10-14 14:42:48 +08:00
Peter Hoeg 46a92333e9 sddm: silence error about missing wayland directory 2017-10-14 14:38:04 +08:00
Peter Hoeg 3571163858 display-manager: systemd-udev-settle serves no purpose 2017-10-14 14:38:04 +08:00
Maximilian Bosch 4b50d543bd
services.compton: add opacityRules option 2017-10-12 21:14:01 +02:00
Patrick Chilton e3675fedc7 mate-power-manager: init at 1.18.0 2017-10-12 08:22:21 +02:00
Thomas Tuegel d9aa539340
Merge branch 'phonon-backend-qt5' 2017-10-11 18:35:08 -05:00
Thomas Tuegel b25deccd1a
nixos/plasma5: install phonon backends for each current Qt version
Fixes #27050, where the phonon backend was not found.
2017-10-11 18:29:43 -05:00
WilliButz 5e8d1757ef nixos/xautolock: rewrite and add some options 2017-10-10 19:02:27 +02:00
Benjamin Staffin b3df084c70 nixos: minor X11 option description improvements (#30035) 2017-10-09 12:07:19 -07:00
Rostislav Beneš 0cad98dde1
nixos/xserver,gdm: let GDM handle X server verbosity. 2017-09-28 00:18:57 +02:00
Rostislav Beneš 4ef82339c9
nixos/gdm,nvidia: new options to enable GDM on Wayland and disabling it for nvidia drivers. 2017-09-28 00:18:57 +02:00
Jan Tojnar 69698ec11c gnome3: only maintain single GNOME 3 package set (#29397)
* gnome3: only maintain single GNOME 3 package set

GNOME 3 was split into 3.10 and 3.12 in #2694. Unfortunately, we barely have the resources
to update a single version of GNOME. Maintaining multiple versions just does not make sense.
Additionally, it makes viewing history using most Git tools bothersome.

This commit renames `pkgs/desktops/gnome-3/3.24` to `pkgs/desktops/gnome-3`, removes
the config variable for choosing packageset (`environment.gnome3.packageSet`), updates
the hint in maintainer script, and removes the `gnome3_24` derivation from `all-packages.nix`.

Closes: #29329

* maintainers/scripts/gnome: Use fixed GNOME 3 directory

Since we now allow only a single GNOME 3 package set, specifying
the working directory is not necessary.

This commit sets the directory to `pkgs/desktops/gnome-3`.
2017-09-24 12:15:50 +01:00
Jaka Hudoklin 4521225d22 nixos/xpra: allow to set extra options (#28934) 2017-09-03 16:30:08 +01:00
romildo c4dd81b81d mate: remove icon cache 2017-09-01 17:27:24 -03:00
Jörg Thalheim d0e4aef32a Merge pull request #28781 from romildo/mate
mate: add the MATE desktop environment
2017-08-31 18:57:20 +01:00
romildo 56345c0ee4 mate: add icon themes 2017-08-31 13:30:44 -03:00
romildo dcebb0668b mate: add the MATE desktop environment 2017-08-31 00:16:51 -03:00
Graham Christensen 9d2777a5a5
Mark synaptics as deprecated 2017-08-30 20:32:45 -04:00
Frederik Rietdijk 6d4bd78fad Merge commit '2858c41' into HEAD 2017-08-30 21:07:07 +02:00
Graham Christensen 128cdeffd0
compiz: drop 2017-08-30 06:59:20 -04:00
Symphorien Gibol bd54589233 networkmanager_iodine: init at 1.2.0 2017-08-30 02:58:29 +02:00
Tom Hunger 932b167321 Fix indentation. 2017-08-28 15:56:04 +01:00
Linus Heckemann b73e3b6095 GNOME: 3.22 -> 3.24
This is a squash commit of the joint work from:

* Jan Tojnar (@jtojnar)
* Linus Heckemann (@lheckemann)
* Ryan Mulligan (@ryantm)
* romildo (@romildo)
* Tom Hunger (@teh)
2017-08-28 15:32:49 +01:00
Jörg Thalheim ddf540d44c Merge pull request #27096 from gnidorah/maxx
maxx: init at 1.1.0
2017-08-25 06:40:31 +01:00
gnidorah 15ae2cbeea maxx: use libredirect 2017-08-24 19:34:08 +03:00
gnidorah b73ae0a695 maxx: move deps from module to package 2017-08-14 11:13:49 +03:00
Silvan Mosberger 7bc42a8971
xmonad service: add defaultText to extraPackages to fix rendering in docs 2017-08-08 01:14:58 +02:00
Jan Tojnar c9d419a22b gnome: Further fixes for Using the 'memory' GSettings backend issue 2017-08-05 12:21:00 +02:00
aszlig 6e5d2f8963
nixos/xserver: Properly validate XKB options
Checking the keyboard layout has been a long set of hurdles so far, with
several attempts. Originally, the checking was introduced by @lheckemann
in #23709.

The initial implementation just was trying to check whether the symbols/
directory contained the layout name.

Unfortunately, that wasn't enough and keyboard variants weren't
recognized, so if you set layout to eg. "dvorak" it will fail with an
error (#25526).

So my improvement on that was to use sed to filter rules/base.lst and
match the layout against that. I fucked up twice with this, first
because layout can be a comma-separated list which I didn't account for
and second because I ran into a Nix issue (NixOS/nix#1426).

After fixing this, it still wasn't enough (and this is btw. what
localectl also does), because we were *only* matching rules but not
symbols, so using "eu" as a layout won't work either.

I decided now it's the time to actually use libxkbcommon to try
compiling the keyboard options and see whether it succeeds. This comes
in the form of a helper tool called xkbvalidate.

IMHO this approach is a lot less error-prone and we can be sure that we
don't forget about anything because that's what the X server itself uses
to compile the keymap.

Another advantage of this is that we now validate the full set of XKB
options rather than just the layout.

Tested this against a variety of wrong and correct keyboard
configurations and against the "keymap" NixOS VM tests.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Cc: @lheckemann, @peti, @7c6f434c, @tohl, @vcunat, @lluchs
Fixes: #27597
2017-07-28 12:39:55 +02:00
gnidorah 52deb4b460 maxx: 1.0.0 -> 1.1.0 2017-07-24 13:19:45 +03:00
zimbatm 4d545297d8 lib: introduce imap0, imap1 (#25543)
* lib: introduce imap0, imap1

For historical reasons, imap starts counting at 1 and it's not
consistent with the rest of the lib.

So for now we split imap into imap0 that starts counting at zero and
imap1 that starts counting at 1. And imap is marked as deprecated.

See c71e2d4235 (commitcomment-21873221)

* replace uses of lib.imap

* lib: move imap to deprecated.nix
2017-07-04 23:29:23 +01:00
gnidorah 7f13a3f5b8 maxx: init at 1.0.0 2017-07-04 13:42:53 +03:00
aszlig 69da1807f0
nixos/xserver: Allow more than one keyboard layout
Regression introduced by 44c64fef16.

The services.xserver.layout option allows to specify more than one
layout separated by comma, which the commit above didn't take into
account.

This is very similar to @lheckemann's pull request (#26984) but differs
in the following ways:

  * Print out the full list available layouts (as suggested by @0xABAB
    in [1]).
  * Loop over $layout using the default IFS (and thus no need for
    escaping ${cfg.layout}), because the layouts won't contain white
    spaces.
  * Re-do the error message, which now uses multiple echos instead of a
    heredoc, so the line is wrapped according to the viewers terminal
    width.

I've tested this with several good and bad layouts and also against the
keymap NixOS VM subtests.

[1]: https://github.com/NixOS/nixpkgs/pull/26984#discussion_r125146700

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Fixes: #26961
Closes: #26984
2017-07-03 08:29:20 +02:00
aszlig d97cdfc591
nixos/xserver: Document the layouts sed expression
This was brought up by @0xABAB in #26984 by the following comment:

https://github.com/NixOS/nixpkgs/pull/26984#discussion_r125146405

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2017-07-03 08:29:16 +02:00
romildo c5ff68b3c2 lumina: 1.2.0-p1 -> 1.3.0
- Update to version 1.3.0

- Remove dependency on `oxygen-icons5`, as Lumina desktop now distributes
it’s own "material-design-[light/dark]" icon themes and uses them as the
default icon sets.
2017-06-29 08:13:09 -03:00
aszlig e82d126212
nixos/xserver: Don't use exec in xkb-layouts-exist
First of all, thanks to @pbogdan for getting this problem reproduced:

https://github.com/NixOS/nixpkgs/commit/2014db3efcd2a#commitcomment-22815396

Also thanks to @vcunat for bringing this to my attention:

https://github.com/NixOS/nixpkgs/commit/44c64fef16ed5#commitcomment-22813503

Although it is not entirely clear why Nix has killed the build prior to
finishing, it seems to be related to the process substition I was using.

So instead of using "exec touch", let's wrap this inside an if so we
don't exit too early.

Tested this against all sub-tests in nixos/tests/keymap.nix and also a
few configurations with wrong keyboard layout definitions.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2017-06-28 21:39:19 +02:00
Vladimír Čunát 2014db3efc
nixos xkb-layouts-exist: try to debug on Hydra
I hate having to do this.  We're unable to reproduce the problem locally.
2017-06-28 19:47:51 +02:00
aszlig 44c64fef16
nixos/xserver: Improve checking keyboard layout
Enumerating the symbols directory doesn't include variants, so we're now
basically doing what "localectl list-x11-keymap-layouts" does but we use
sed instead.

The reason I'm not using localectl directly is because the path to
rules/base.lst is hardcoded in the systemd source.

Of course, the XKB specification allows for much more complicated rules,
but at least this should cover the most basic ones including variants.

So the sed expression itself is just for listing the available layouts
and variants and we use a grep with -xF to match only full lines without
interpreting regular expressions.

This should again allow to set "dvorak" as the layout option.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Cc: @lheckemann
Fixes: #25526
2017-06-22 03:24:28 +02:00
Thomas Tuegel dab7700f6c
qt58: determine plugin and import paths from PATH
Plugin and QML import paths were previously determined by NIX_PROFILES. Using
PATH instead allows Qt applications to work under nix-shell without further
modification.
2017-06-18 08:44:47 -05:00
Thomas Tuegel faf0d3e91d
kdeFrameworks: fixup inputs and outputs
- Reduce environment pollution with a separate $bin output containing programs,
  plugins, and shared data. Libraries remain in $out and are not installed into
  the environment.
- Only propagate build inputs as required.
2017-06-18 08:44:45 -05:00
Thomas Tuegel 870c07cc2b
sddm: take themes from system environment 2017-06-18 08:43:39 -05:00
Thomas Tuegel be7b7d908f
Remove kdeWrapper 2017-06-18 08:43:39 -05:00
Thomas Tuegel 3f3d33a078
qt5: use distinct lib/qt-5.x prefix for each minor version
Using a distinct prefix for plugins and QML libraries allows multiple Qt 5 minor
versions to coexist in the same environment.
2017-06-18 08:41:57 -05:00
romildo aa8018103c nixos-artwork: add more wallpapers
Restructure the nixos-artwork to make it easy to selectively
incorporate other components from upstream without needing to download
the full package.

Until now only the Gnome_Dark wallpaper was included. Add other
wallpapers available in the package repository.
2017-06-07 18:00:58 -03:00
Alexander V. Nikolaev ff52233bca qtile: Fix using qtile together with desktop
Funny bug, which prevent qtile to co-exists with desktop manager
(or program pretending to be DE)
2017-05-31 18:37:47 +03:00
Franz Pletz 1e95e114e5
nixos/xsession: use graphical systemd user target
While systemd suggests using the pre-defined graphical-session user
target, I found that this interface is difficult to use. Additionally,
no other major distribution, even in their unstable versions, currently
use this mechanism.

The window or desktop manager is supposed to run in a systemd user service
which activates graphical-session.target and the user services that are
binding to this target. The issue is that we can't elegantly pass the
xsession environment to the window manager session, in particular
whereas the PassEnvironment option does work for DISPLAY, it for some
mysterious reason won't for PATH.

This commit implements a new graphical user target that works just like
default.target. Services which should be run in a graphical session just
need to declare wantedBy graphical.target. The graphical target will be
activated in the xsession before executing the window or display manager.

Fixes #17858.
2017-05-29 15:05:28 +02:00
Tom Smeets 5886b7fd72 desktopManager service: Document background image location 2017-05-26 14:43:33 +00:00
Tom Smeets 6a7590d78a desktopManager service: Add wallpaper options
These options are used by `feh` when setting the wallpaper.
2017-05-26 14:43:33 +00:00
Stefan Lau a3696aa090 networkmanager_fortisslvpn: init at 1.2.4 2017-05-19 19:18:30 +02:00
Jörg Thalheim 2f22bbe150 Merge pull request #25578 from Ma27/module/xautolock
services.xserver.xautolock: add module
2017-05-19 07:09:10 +01:00
Bjørn Forsman f9633c7791 nixos/gnome3: fix screen sharing
Without this change there will be silent errors when enabling screen
sharing. The GUI thinks it enables the service when it in fact does not
(errors are seen in the system journal).

vino is already in the closure of gnome-control-center, so this is
basically free.

Configuration of screen sharing is done in GNOME control center.
2017-05-17 15:23:11 +02:00
Eric Sagnes 92bb3e8b9b i3: fix runtime dependencies
Fixes #25633.
2017-05-10 02:42:44 +02:00
Maximilian Bosch 9d1db321fe
services.xserver.xautolock: add module 2017-05-09 15:02:10 +02:00
montag451 3be53fca60 gnome-disks: add D-Bus service 2017-05-06 19:40:37 +02:00
aszlig 9dca737d62
Merge pull request #15353 (improve xrandrHeads)
When you have a setup consisting of multiple monitors, the default is
that the first monitor detected by xrandr is set to the primary monitor.

However this may not be the monitor you need to be set as primary. In
fact this monitor set to primary may in fact be disconnected.

This has happened for the original submitter of the pull request and it
affected these programs:

 * XMonad: Gets confused with Super + {w,e,r}
 * SDDM: Puts the login screen on the wrong monitor, and does not
         currently duplicate the login screen on all monitors
 * XMobar: Puts the XMobar on the wrong monitor, as it only puts the
           taskbar on the primary monitor

These changes should fix that not only by setting a primary monitor in
xrandrHeads but also make it possible to make a different monitor the
primary one.

The changes are also backwards-compatible.
2017-05-02 23:14:26 +02:00
Michael Raskin 98a36b2847 Merge pull request #23709 from lheckemann/xserver-layout-existence
xserver: check that selected layout exists
2017-05-01 12:16:59 +02:00
Thomas Tuegel 4e0d21edd1 Merge pull request #25285 from ttuegel/qt--fix-plugin-paths
Qt: purify plugin paths, unify Linux and Darwin builders
2017-04-30 07:33:50 -05:00
Michael Weiss 852813689a desktop-managers: Use a black BG as fallback
Use a solid black background when no background image (via
~/.background-image) is provided. In my case this fixes the really
strange behaviour when i3 without a desktop manager starts with the SDDM
login screen as background image.
2017-04-29 19:03:30 +02:00
Michael Weiss 1273f414a7 display-managers: Fix the xsession parameters
The xsession script was called with inconsistent (depending on the
display managers) and wrong parameters. The main reason for this where
the spaces the parameter syntax. In order to fix this the old syntax:
$1 = '<desktop-manager> + <window-manager>'
Will be replaced with a new syntax:
$1 = "<desktop-manager>+<window-manager>"

This assumes that neither "<desktop-manager>" nor "<window-manager>"
contain the "+" character but this shouldn't be a problem.

This patch also fixes the quoting by using double quotes (") instead of
single quotes (') [0].

Last but not least this'll add some comments for the better
understanding of the script.

[0]: https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html
2017-04-28 22:00:14 +02:00
Thomas Tuegel b70837e054
nixos/plasma5: set system-wide QT_PLUGIN_PATH 2017-04-28 05:54:18 -05:00
Judson Lester 0d72629570 nixos/display-managers: Quote "$vars" (#25199) 2017-04-27 18:01:48 +02:00
aszlig 79e712822f
nixos/xserver: Document xrandrHeads.apply
It was asked by @CMCDragonkai to elaborate on that, so let's just do
this by actually providing a code comment.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2017-04-24 12:02:10 +02:00
aszlig 8266c89b55
nixos/xserver: Fix up/refactor xrandrHeads option
Using invalid module options in the submodule isn't very nice, because
it doesn't give very useful errors in case of type mismatch, also we
don't get descriptions of these options as they're effecively
nonexistent to the module system. Another downside of this is that
merging of these options isn't done correctly as well (eg. for
types.lines).

So we now have proper submodules for each xrandrHead and we also use
corcedTo in the type of xrandrHeads so that we can populate the
submodule's "output" option in case a plain string is defined for a list
item.

Instead of silently skipping multiple primary heads, we now have an
assertion, which displays a message and aborts configuration evaluation
appropriately.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2017-04-24 11:22:55 +02:00
aszlig 83e1400e0c
nixos/slim: Implement logging to journal
The main change here is a patch of SLiM to tread a log file of
/dev/stderr specially in that it now uses std::cerr instead of a file
for logging.

This allows us to set the logfile to stderr in NixOS for the generated
SLiM configuration file and we now get logging to the systemd journal.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2017-04-23 19:25:23 +02:00
Michael Weiss e1244f6e8a Revert "display-manager: fix argument handling of sddm"
This reverts commit 6b7c5ba535.

Unfortunately it seems like this broke slim, lightdm and gdm (see #25068
and #23264). This is already reverted in the 17.03 branch (99dfb6d).

TODO: We need tests for slim and lightdm and fix the test for gdm
(failing since 2016-10-26) to prevent such breakage in the future.
2017-04-23 03:19:07 +02:00
Roger Qiu bb6a5b079f nixos/xserver: Changed xrandrHeads to support corresponding monitor section configuration in Xorg 2017-04-21 22:01:29 +10:00
Benno Fünfstück 149656581d Merge pull request #24601 from pbogdan/unclutter
unclutter: Fix default value of $DISPLAY
2017-04-19 18:40:43 +02:00
Jörg Thalheim 6b7c5ba535
display-manager: fix argument handling of sddm
previously session type was not correctly set.

fixes #23264
2017-04-18 01:41:17 +02:00
Franz Pletz 3ab45f4b36
treewide: use boolToString function 2017-04-11 18:18:53 +02:00
Sorin Iclanzan b41dd2fae0 nixos/compton: fixup option descriptions (#24724)
* Fix `fadeExclude` description.
* Fix typo in `shadowExclude`.
2017-04-08 05:04:55 +01:00
Alexey Shmalko b8e71f2969 Merge pull request #24651 from edanaher/add-fvwm-window-manager
fvwm module: init; now fvwm can be used as an xserver.windowManager
2017-04-06 16:29:28 +03:00
Evan Danaher 7a38b0858f fvwm module: init; now fvwm can be used as an xserver.windowManager 2017-04-05 11:12:46 -04:00
Piotr Bogdan c91c3209f3 unclutter: Fix default value of $DISPLAY 2017-04-03 18:41:11 +01:00
sternenseemann fd3a99633b 2bwm: init at 0.2 2017-03-30 19:21:27 +02:00
Robin Gloster d1228f95e9
Revert "Revert "gdm module: only make xserver args overrideable""
This reverts commit 4e57e7f7c6.

This actually broke gnome3 and didn't fix anything, I failed bisecting.
2017-03-27 17:20:56 +02:00
Vladimír Čunát 455ce3528c
Merge branch 'staging' 2017-03-24 21:07:55 +01:00
Robin Gloster 4e57e7f7c6
Revert "gdm module: only make xserver args overrideable"
This reverts commit a5aa926902.

This allows gdm to run again, the test is still failing.
2017-03-24 10:35:20 +01:00
Linus Heckemann 79872b9e39 Document possibility of multiple keyboard layouts
In services.xserver.layout
2017-03-23 21:15:14 +00:00
Linus Heckemann c5c0459a60 xserver: check that selected layout exists
Fixes #5638
2017-03-23 21:02:38 +00:00
Robin Gloster c2b9b8031f Merge pull request #24026 from benley/use-xkbDir
nixos: Use xkbDir consistently so it has an effect
2017-03-23 18:02:26 +01:00
Vladimír Čunát c1a9dc3d37
Merge branch 'master' into staging 2017-03-23 13:31:28 +01:00
Piotr Bogdan a4b4cd0710 lightdm-greeters service: add extraConfig option (#24135) 2017-03-22 15:33:22 +01:00
Thomas Tuegel a96e047b31
nixos/sddm: replace themes option with package option 2017-03-22 07:44:55 -05:00
Thomas Tuegel 7ca62935bb
nixos/plasma5: do not include extra-cmake-modules in sddm
Fixes #24126.
2017-03-22 07:44:55 -05:00
Frederik Rietdijk 94eb74eaad Merge remote-tracking branch 'upstream/master' into HEAD 2017-03-21 13:04:37 +01:00
Thomas Tuegel 1b0d9e9ae6 Merge pull request #23819 from ttuegel/freetype
FreeType 2.7.1 and Fontconfig defaults
2017-03-20 11:43:50 -05:00
Thomas Tuegel d709cdd829
nixos/plasma5: do not set kimpanel as default IBus panel
kimpanel does not show installed IBus engines or allow switching input
methods. kimpanel does show configured keyboard layouts through kxkb, so I
believe there is some problem communicating with IBus. No error messages are
produced in the log and I have been unable to discover the cause. I have no
intention of continuing to work on kimpanel at this time, so it should be
disabled. The GTK+ 3-based panel provided by IBus is perfectly serviceable in
the interim.
2017-03-20 09:31:05 -05:00
Thomas Tuegel 4837aba1ee Merge pull request #24101 from romildo/fix.lumina
lumina: fix kwindowsystem and oxygen-icons5 attributes
2017-03-20 09:00:25 -05:00
romildo 501d9c7186 lumina: fix kwindowsystem and oxygen-icons5 attributes 2017-03-19 21:46:35 -03:00
Benjamin Staffin b79c284952
nixos: Use xkbDir consistently so it has an effect 2017-03-18 17:56:38 -04:00
Franz Pletz 9536169074
nixos/treewide: remove boolean examples for options
They contain no useful information and increase the length of the
autogenerated options documentation.

See discussion in #18816.
2017-03-17 23:36:19 +01:00
Thomas Tuegel 65592837b6
freetype: 2.6.5 -> 2.7.1
The Infinality bytecode interpreter is removed in favor of the new v40 TrueType
interpreter. In the past, the Infinality interpreter provided support for
ClearType-style hinting instructions while the default interpreter (then v35)
provided support only for original TrueType-style instructions. The v40
interpreter corrects this deficiency, so the Infinality interpreter is no longer
necessary.

To understand why the Infinality interpreter is no longer necessary, we should
understand how ClearType differs from TrueType and how the v40 interpreter
works. The following is a summary of information available on the FreeType
website [1] mixed with my own editorializing.

TrueType instructions use horizontal and vertical hints to improve glyph
rendering. Before TrueType, fonts were only vertically hinted; horizontal hints
improved rendering by snapping stems to pixel boundaries. Horizontal hinting is
a risk because it can significantly distort glyph shapes and kerning. Extensive
testing at different resolutions is needed to perfect the TrueType
hints. Microsoft invested significant effort to do this with its "Core fonts for
the Web" project, but few other typefaces have seen this level of attention.

With the advent of subpixel rendering, the effective horizontal resolution of
most displays increased significantly. ClearType eschews horizontal hinting in
favor of horizontal supersampling. Most fonts are designed for the Microsoft
bytecode interpreter, which implements a compatibility mode with
TrueType-style (horizontal and vertical) instructions. However, applying the
full horizontal hints to subpixel-rendered fonts leads to color fringes and
inconsistent stem widths. The Infinality interpreter implements several
techniques to mitigate these problems, going so far as to embed font- and
glyph-specific hacks in the interpreter. On the other hand, the v40 interpreter
ignores the horizontal hinting instructions so that glyphs render as they are
intended to on the Microsoft interpreter. Without the horizontal hints, the
problems of glyph and kerning distortion, color fringes, and inconsistent stem
widths--the problems the Infinality interpreter was created to solve--simply
don't occur in the first place.

There are also security concerns which motivate removing the Infinality patches.
Although there is an updated version of the Infinality interpreter for FreeType
2.7, the lack of a consistent upstream maintainer is a security concern. The
interpreter is a Turing-complete virtual machine which has had security
vulnerabilities in the past. While the default interpreter is used in billions
of devices and is maintained by an active developer, the Infinality interpreter
is neither scrutinized nor maintained. We will probably never know if there are
defects in the Infinality interpreter, and if they were discovered they would
likely never be fixed. I do not think that is an acceptable situtation for a
core library like FreeType.

Dropping the Infinality patches means that font rendering will be less
customizable. I think this is an acceptable trade-off. The Infinality
interpreter made many compromises to mitigate the problems with horizontal
hinting; the main purpose of customization is to tailor these compromises to the
user's preferences. The new interpreter does not have to make these compromises
because it renders fonts as their designers intended, so this level of
customization is not necessary.

The Infinality-associated patches are also removed from cairo. These patches
only set the default rendering options in case they aren't set though
Fontconfig. On NixOS, the rendering options are always set in Fontconfig, so
these patches never actually did anything for us!

The Fontconfig test suite is patched to account for a quirk in the way PCF fonts
are named.

The fontconfig option `hintstyle` is no longer configurable in NixOS. This
option selects the TrueType interpreter; the v40 interpreter is `hintslight` and
the older v35 interpreter is `hintmedium` or `hintfull` (which have actually
always been the same thing). The setting may still be changed through the
`localConf` option or by creating a user Fontconfig file.

Users with HiDPI displays should probably disable hinting and antialiasing: at
best they have no visible effect.

The fontconfig-ultimate settings are still available in NixOS, but they are no
longer the default. They still work, but their main purpose is to set rendering
quirks which are no longer necessary and may actually be
detrimental (e.g. setting `hintfull` for some fonts). Also, the vast array of
font substitutions provided is not an appropriate default; the default setting
should be to give the user the font they asked for.

[1]. https://www.freetype.org/freetype2/docs/subpixel-hinting.html
2017-03-12 17:31:33 -05:00
Thomas Tuegel 64b88c3017 Merge branch 'master' into phonon-gstreamer 2017-03-10 07:30:14 -06:00
Thomas Tuegel edd43351cf
nixos/plasma5: no need to set gstreamer plugin path 2017-03-10 07:26:40 -06:00
Thomas Tuegel e3cb24d1e0 Merge pull request #23503 from ttuegel/fontconfig
Generalize Fontconfig options
2017-03-09 19:29:28 -06:00
Graham Christensen 710973e354 Merge pull request #23492 from zarelit/xfce_lockscreen
xfce: add screenLock option
2017-03-06 19:42:47 -05:00