5521db80b1
Currently, after I connect my monitor to my laptop, I run `display/enable-4k`, which will use `xrandr` to enable the display. The scaling of the enabled display is not what I expect. So I've habituated re-running the same function, `display/enable-4k`, which scales the display and meets my expectations. What's strange is that if instead of running `display/enable-4k` the first time from Emacs, I call `xrandr ...` from a terminal, this enables the display and scales it properly on the first invocation. I'm unsure how to explain this behavior. It's possible that a environment variable is set properly in the terminal that isn't set in my Emacs, but this is just a guess. I'm going to using a different invocation in display.el that explicitly passes the monitors dimensions. Let's see if that works.
98 lines
3.2 KiB
EmacsLisp
98 lines
3.2 KiB
EmacsLisp
;;; display.el --- Working with single or multiple displays -*- lexical-binding: t -*-
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;; Author: William Carroll <wpcarro@gmail.com>
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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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;; - xrandr --query
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;;; Code:
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Dependencies
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(require 'prelude)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Constants
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defconst display/install-kbds? t
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"When t, install the keybindings defined in this module.")
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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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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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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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(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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(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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(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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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Keybindings
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(when display/install-kbds?
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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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(general-define-key
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:prefix "<SPC>"
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:states '(normal)
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"D0" #'display/disable-4k
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"D1" #'display/enable-4k))
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(provide 'display)
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;;; display.el ends here
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