Define display-4k-vertical
I recently acquired a new monitor, which I'm orienting vertically for logs, chats, etc. As such I needed to add more functions, KBDs to wrangle the setup. To DRY up my code, I define a macro, `display-register`, as a DSL for supporting new monitors. This: - defines two functions for enabling and disabling the displays - defines a constant, `display-<name>` It's basically just a wrapper around `xrandr`, and that's good enough for now.
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William Carroll
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2 changed files with 74 additions and 67 deletions
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@ -8,8 +8,6 @@
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;;; Commentary:
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;; Mostly wrappers around xrandr.
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;;
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;; TODO: Look into autorandr to see if it could be useful.
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;;
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;; Troubleshooting:
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;; The following commands help me when I (infrequently) interact with xrandr.
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;; - xrandr --listmonitors
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@ -22,75 +20,83 @@
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(require 'prelude)
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(require 'cycle)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Constants
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; TODO: Consider if this logic should be conditioned by `device-work-laptop?'.
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(defconst display-laptop-monitor "eDP1"
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"The xrandr identifier for my primary screen (on work laptop).")
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;; TODO: Why is HDMI-1, eDP-1 sometimes and HDMI1, eDP1 other times.
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(defconst display-4k-monitor "HDMI1"
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"The xrandr identifer for my 4K monitor.")
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(defconst display-display-states (cycle-from-list '((t . nil) (nil . t)))
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"A list of cons cells modelling enabled and disabled states for my displays.
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The car models the enabled state of my laptop display; the cdr models the
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enabled state of my external monitor.")
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Library
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; TODO: Debug why something this scales to 4k appropriately and other times it
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;; doesn't.
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(defun display-enable-4k ()
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"Attempt to connect to my 4K monitor."
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(interactive)
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(prelude-start-process
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:name "display-enable-4k"
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:command (string-format
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"xrandr --output %s --above %s --primary --auto --size 3840x2160 --rate 30.00 --dpi 144"
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display-4k-monitor
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display-laptop-monitor)))
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(cl-defmacro display-register (name &key
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output
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primary
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position
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size
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rate
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dpi
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rotate)
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"Macro to define a constant and two functions for {en,dis}abling a display.
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(defun display-disable-4k ()
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"Disconnect from the 4K monitor."
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(interactive)
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(prelude-start-process
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:name "display-disable-4k"
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:command (string-format "xrandr --output %s --off"
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display-4k-monitor)))
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NAME - the human-readable identifier for the display
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OUTPUT - the xrandr identifier for the display
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PRIMARY - if true, send --primary flag to xrandr
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POSITION - one of {left-of,right-of,above,below,same-as}
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SIZE - the pixel resolution of the display
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RATE - the refresh rate
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DPI - the pixel density in dots per square inch
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rotate - one of {normal,left,right,inverted}
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(defun display-enable-laptop ()
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"Turn the laptop monitor off.
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Sometimes this is useful when I'm sharing my screen in a Google Hangout and I
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only want to present one of my monitors."
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(interactive)
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(prelude-start-process
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:name "display-disable-laptop"
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:command (string-format "xrandr --output %s --auto"
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display-laptop-monitor)))
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See the man-page for xrandr for more details."
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`(progn
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(defconst ,(intern (format "display-%s" name)) ,output
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,(format "The xrandr identifier for %s" name))
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(defun ,(intern (format "display-enable-%s" name)) ()
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,(format "Attempt to enable my %s monitor" name)
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(interactive)
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(prelude-start-process
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:name ,(format "display-enable-%s" name)
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:command ,(format
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"xrandr --output %s --%s --%s %s --auto --size %dx%d --rate %0.2f --dpi %d --rotate %s"
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output
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(if primary "primary" "noprimary")
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(car position) (eval (cadr position))
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(car size) (cadr size)
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rate
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dpi
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rotate)))
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(defun ,(intern (format "display-disable-%s" name)) ()
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,(format "Attempt to disable my %s monitor." name)
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(interactive)
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(prelude-start-process
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:name ,(format "display-disable-%s" name)
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:command ,(format
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"xrandr --output %s --off"
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output)))))
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(defun display-disable-laptop ()
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"Turn the laptop monitor off.
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Sometimes this is useful when I'm sharing my screen in a Google Hangout and I
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only want to present one of my monitors."
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(interactive)
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(prelude-start-process
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:name "display-disable-laptop"
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:command (string-format "xrandr --output %s --off"
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display-laptop-monitor)))
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(display-register laptop
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:output "eDP1"
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:primary nil
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:position (below display-4k-horizontal)
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:size (3840 2160)
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:rate 30.0
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:dpi 144
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:rotate normal)
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(defun display-cycle-display-states ()
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"Cycle through `display-display-states' enabling and disabling displays."
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(interactive)
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(let ((state (cycle-next display-display-states)))
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(if (car state) (display-enable-laptop) (display-disable-laptop))
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(if (cdr state) (display-enable-4k) (display-disable-4k))))
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(display-register 4k-horizontal
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:output "HDMI1"
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:primary t
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:position (above display-laptop)
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:size (3840 2160)
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:rate 30.0
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:dpi 144
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:rotate normal)
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(display-register 4k-vertical
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:output "DP2"
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:primary nil
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:position (right-of display-4k-horizontal)
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:size (3840 2160)
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:rate 30.0
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:dpi 144
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:rotate right)
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(provide 'display)
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;;; display.el ends here
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@ -224,14 +224,15 @@
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(when (device-work-laptop?)
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(keybindings-exwm "<XF86Display>" #'display-cycle-display-states)
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(general-define-key
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:prefix "<SPC>"
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:states '(normal)
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"d0" #'display-disable-laptop
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"d1" #'display-enable-laptop
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"D0" #'display-disable-4k
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"D1" #'display-enable-4k))
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"d0" #'display-enable-laptop
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"D0" #'display-disable-laptop
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"d1" #'display-enable-4k-horizontal
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"D1" #'display-disable-4k-horizontal
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"d2" #'display-enable-4k-vertical
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"D2" #'display-disable-4k-vertical))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; notmuch
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