autorandr

Automatically select a display configuration based on connected devices

Branch information

This is a compatible Python rewrite of wertarbyte/autorandr. Contributions for bash-completion, fd.o/XDG autostart, Nitrogen, pm-utils, and systemd can be found under contrib.

The original wertarbyte/autorandr tree is unmaintained, with lots of open pull requests and issues. I forked it and merged what I thought were the most important changes. If you are searching for that version, see the legacy branch. Note that the Python version is better suited for non-standard configurations, like if you use --transform or --reflect. If you use auto-disper, you have to use the bash version, as there is no disper support in the Python version (yet). Both versions use a compatible configuration file format, so you can, to some extent, switch between them. I will maintain the legacy branch until @wertarbyte finds the time to maintain his branch again.

If you are interested in why there are two versions around, see #7, #8 and especially #12 if you are unhappy with this version and would like to contribute to the bash version.

License information and authors

autorandr is available under the terms of the GNU General Public License (version 3).

Contributors to this version of autorandr are:

Adrián López
andersonjacob
Alexander Lochmann
Alexander Wirt
Brice Waegeneire
Chris Dunder
Christoph Gysin
Christophe-Marie Duquesne
Daniel Hahler
Maciej Sitarz
Mathias Svensson
Matthew R Johnson
Nazar Mokrynskyi
Phillip Berndt
Rasmus Wriedt Larsen
Sam Coulter
Simon Wydooghe
Stefan Tomanek
stormc
tachylatus
Timo Bingmann
Timo Kaufmann
Tomasz Bogdal
Victor Häggqvist
Jan-Oliver Kaiser
Alexandre Viau

Installation/removal

You can use the autorandr.py script as a stand-alone binary. If you'd like to install it as a system-wide application, there is a Makefile included that also places some configuration files in appropriate directories such that autorandr is invoked automatically when a monitor is connected or removed, the system wakes up from suspend, or a user logs into an X11 session. Run make install as root to install it.

If you prefer to have a system wide install managed by your package manager, you can

Use the official Arch package.
Use the official Debian package on sid
Use the official Fedora package on Fedora 39+.
Use the FreeBSD Ports Collection on FreeBSD.
Use the official Gentoo package.
Use the nix package on NixOS.
Use the guix package on Guix.
Use the SlackBuild on Slackware.
Use the automated nightlies generated by the openSUSE build service for various distributions (RPM and DEB based).
Use the X binary package system' on Void Linux
Build a .deb-file from the source tree using make deb.
Build a .rpm-file from the source tree using make rpm.

We appreciate packaging scripts for other distributions, please file a pull request if you write one.

If you prefer pip over your package manager, you can install autorandr with:

sudo pip install "git+http://github.com/phillipberndt/autorandr#egg=autorandr"

or simply

sudo pip install autorandr

if you prefer to use a stable version.

How to use

Save your current display configuration and setup with:

autorandr --save mobile

Connect an additional display, configure your setup and save it:

autorandr --save docked

Now autorandr can detect which hardware setup is active:

$ autorandr
  mobile
  docked (detected)

To automatically reload your setup:

$ autorandr --change

To manually load a profile:

$ autorandr --load <profile>

or simply:

$ autorandr <profile>

autorandr tries to avoid reloading an identical configuration. To force the (re)configuration:

$ autorandr --load <profile> --force

To prevent a profile from being loaded, place a script call block in its directory. The script is evaluated before the screen setup is inspected, and in case of it returning a value of 0 the profile is skipped. This can be used to query the status of a docking station you are about to leave.

If no suitable profile can be identified, the current configuration is kept. To change this behaviour and switch to a fallback configuration, specify --default <profile>. The system-wide installation of autorandr by default calls autorandr with a parameter --default default. There are three special, virtual configurations called horizontal, vertical and common. They automatically generate a configuration that incorporates all screens connected to the computer. You can symlink default to one of these names in your configuration directory to have autorandr use any of them as the default configuration without you having to change the system-wide configuration.

You can store default values for any option in an INI-file located at ~/.config/autorandr/settings.ini. In a config section, you may place any default values in the form option-name=option-argument.

A common and effective use of this is to specify default skip-options, for instance skipping the gamma setting if using redshift as a daemon. To implement the equivalent of --skip-options gamma, your settings.ini file should look like this:

[config]
skip-options=gamma

Advanced usage

Hook scripts

Three more scripts can be placed in the configuration directory (as defined by the XDG spec, usually ~/.config/autorandr or ~/.autorandr if you have an old installation for user configuration and /etc/xdg/autorandr for system wide configuration):

postswitch is executed after a mode switch has taken place. This can be used to notify window managers or other applications about the switch.
preswitch is executed before a mode switch takes place.
postsave is executed after a profile was stored or altered.
predetect is executed before autorandr attempts to run xrandr.

These scripts must be executable and can be placed directly in the configuration directory, where they will always be executed, or in the profile subdirectories, where they will only be executed on changes regarding that specific profile.

Instead (or in addition) to these scripts, you can also place as many executable files as you like in subdirectories called script_name.d (e.g. postswitch.d). The order of execution of scripts in these directories is by file name, you can force a certain ordering by naming them 10-wallpaper, 20-restart-wm, etc.

If a script with the same name occurs multiple times, user configuration takes precedence over system configuration (as specified by the XDG spec) and profile configuration over general configuration.

As a concrete example, suppose you have the files

/etc/xdg/autorandr/postswitch
~/.config/autorandr/postswitch
~/.config/autorandr/postswitch.d/notify-herbstluftwm
~/.config/autorandr/docked/postswitch

and switch from mobile to docked. Then ~/.config/autorandr/docked/postswitch is executed, since the profile specific configuration takes precedence, and ~/.config/autorandr/postswitch.d/notify-herbstluftwm is executed, since it has a unique name.

If you switch back from docked to mobile, ~/.config/autorandr/postswitch is executed instead of the docked specific postswitch.

If you experience issues with xrandr being executed too early after connecting a new monitor, then you can use a predetect script to delay the execution. Write e.g. sleep 1 into that file to make autorandr wait a second before running xrandr.

Variables

Some of autorandr's state is exposed as environment variables prefixed with AUTORANDR_, such as:

AUTORANDR_CURRENT_PROFILE
AUTORANDR_CURRENT_PROFILES
AUTORANDR_PROFILE_FOLDER
AUTORANDR_MONITORS

with the intention that they can be used within the hook scripts.

For instance, you might display which profile has just been activated by including the following in a postswitch script:

notify-send -i display "Display profile" "$AUTORANDR_CURRENT_PROFILE"

The one kink is that during preswitch, AUTORANDR_CURRENT_PROFILE is reporting the upcoming profile rather than the current one.

Wildcard EDID matching

The EDID strings in the ~/.config/autorandr/*/setup files may contain an asterisk to enable wildcard matching: Such EDIDs are matched against connected monitors using the usual file name globbing rules. This can be used to create profiles matching multiple (or any) monitors.

udev triggers with NVidia cards

In order for udev to detect drm events from the native NVidia driver, the kernel parameter nvidia-drm.modeset must be set to 1. For example, add a file /etc/modprobe.d/nvidia-drm-modeset.conf:

options nvidia_drm modeset=1

Wayland

Before running autorandr will check the environment for the WAYLAND_DISPLAY variable to check if the program is running in a Wayland session. This is to avoid issues between usage of xrandr in Wayland environments.

If you need to run autorandr in a Wayland environment, one workaround is to unset the WAYLAND_DISPLAY variable before running the program, such as:

WAYLAND_DISPLAY= autorandr

Changelog

autorandr 1.15

2023-11-27 Several regex literal bug fixes
2023-12-27 Fix #375: Listen to correct events in launcher
2024-03-03 Fix #367: Skip profiles without outputs

autorandr 1.14

2023-06-22 Direct --match-edid renaming of output messages to stderr
2023-06-22 Add Wayland awareness
2023-06-22 Various minor auxiliary tooling bug fixes, see git-log

autorandr 1.13.3

2023-01-24 Revert udev rule to rely on "change" event (see #324)

autorandr 1.13.2

2023-01-23 Fix autostart in KDE (see #320)
2023-01-23 Match add/remove rather than change in udev rule (see #321)
2023-01-23 Fix wildcard use in EDIDs (see #322)
2023-01-23 Do a final xrandr call to set the frame buffer size (see #319)

autorandr 1.13.1

2023-01-16 Fix bug with Version comparison

autorandr 1.13

2023-01-15 Add reversed horizontal/vertical profiles
2023-01-15 Fix distutils deprecation warning
2023-01-15 Print error when user script fails
2022-12-01 Support --skip-options set to skip setting properties

autorandr 1.12.1

2021-12-22 Fix --match-edid (see #273)

autorandr 1.12

2021-12-16 Switch default interpreter to Python 3
2021-12-16 Add --list to list all profiles
2021-12-16 Add --cycle to cycle all detected profiles
2021-12-16 Store display properties (see #204)

autorandr 1.11

2020-05-23 Handle empty sys.executable
2020-06-08 Fix Python 2 compatibility
2020-10-06 Set group membership of users in batch mode

autorandr 1.10.1

2020-05-04 Revert making the launcher the default (fixes #195)

autorandr 1.10

2020-04-23 Fix hook script execution order to match description from readme
2020-04-11 Handle negative gamma values (fixes #188)
2020-04-11 Sort approximate matches in detected profiles by quality of match
2020-01-31 Handle non-ASCII environment variables (fixes #180)
2019-12-31 Fix output positioning if the top-left output is not the first
2019-12-31 Accept negative gamma values (and interpret them as 0)
2019-12-31 Prefer the X11 launcher over systemd/udev configuration

autorandr 1.9

2019-11-10 Count closed lids as disconnected outputs
2019-10-05 Do not overwrite existing configurations without --force
2019-08-16 Accept modes that don't match the WWWxHHH pattern
2019-03-22 Improve bash autocompletion
2019-03-21 Store CRTC values in configurations
2019-03-24 Fix handling of recently disconnected outputs (See #128 and #143)

autorandr 1.8.1

2019-03-18 Removed mandb call from Makefile

autorandr 1.8

2019-02-17 Add an X11 daemon that runs autorandr when a display connects (by @rliou92, #127)
2019-02-17 Replace width=0 check with disconnected to detect disconnected monitors (by @joseph-jones, #139)
2019-02-17 Fix handling of empty padding (by @jschwab, #138)
2019-02-17 Add a man page (by @somers-all-the-time, #133)

autorandr 1.7

2018-09-25 Fix FB size computation with rotated screens (by @Janno, #117)

autorandr 1.6

2018-04-19 Bugfix: Do not load default profile unless --change is set
2018-04-30 Added a AUTORANDR_MONITORS variable to hooks (by @bricewge, #106)
2018-06-29 Fix detection of current configuration if extra monitors are active
2018-07-11 Bugfix in the latest change: Correctly handle "off" minitors when comparing
2018-07-19 Do not kill spawned user processes from systemd unit
2018-07-20 Correctly handle "off" monitors when comparing -- fixup for another bug.

autorandr 1.5

2018-01-03 Add --version
2018-01-04 Fixed vertical/horizontal/clone-largest virtual profiles
2018-03-07 Output all non-error messages to stdout instead of stderr
2018-03-25 Add --detected and --current to filter the profile list output
2018-03-25 Allow wildcard matching in EDIDs

autorandr 1.4

2017-12-22 Fixed broken virtual profile support
2017-12-14 Added support for a settings file
2017-12-14 Added a virtual profile off, which disables all screens

autorandr 1.3

2017-11-13 Add a short form for --load
2017-11-21 Fix environment stealing in --batch mode (See #87)

autorandr 1.2

2017-07-16 Skip --panning unless it is required (See #72)
2017-10-13 Add clone-largest virtual profile

autorandr 1.1

2017-06-07 Call systemctl with --no-block from udev rule (See #61)
2017-01-20 New script hook, predetect
2017-01-18 Accept comments (lines starting with #) in config/setup files

autorandr 1.0

2016-12-07 Tag the current code as version 1.0.0; see github issue #54
2016-10-03 Install a desktop file to /etc/xdg/autostart by default