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-- When an external monitor is connected, saves internal screen brightness when
-- locking the screen or sleeping. Restores the saved brightness level on
-- unlock or wake. Fixes OS X 10.15 Catalina's bullshit where unlocking my
-- machine caused the internal screen's brightness to be reset to the maximum.
-- Copyright (c) 2019 Teddy Wing
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <https://www.gnu.org/licenses/>.
cbb_brightness = hs.brightness.get()
half_hour = 60 * 30
cbb_logger = hs.logger.new('catalina_brightness_bullshit', 'debug')
function cbb_brightness_restore()
hs.brightness.set(cbb_brightness)
cbb_logger:d('restored brightness: ', cbb_brightness)
end
hs.timer.doEvery(half_hour, function()
cbb_brightness = hs.brightness.get()
cbb_logger:d('saved brightness: ', cbb_brightness)
end)
cbb_wake_watcher = hs.caffeinate.watcher.new(function(event_type)
-- Only run if the external monitor is connected.
if hs.screen.primaryScreen():name() ~= 'G247HL' then
cbb_logger:d('no external monitor')
return
end
if event_type == hs.caffeinate.watcher.screensDidUnlock then
cbb_brightness_restore()
end
end)
cbb_wake_watcher:start()
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