There are plenty of tutorials on the web for Windows 7 brightness control. It does so both directly, by making it difficult for people to fall asleep, and indirectly, by influencing the timing of our internal clock and thereby affecting our preferred time to sleep.( External Factors that Influence Sleep) Light is one of the most important external factors that can affect sleep. Since lighting conditions change frequently, it is important to frequently adjust the screen brightness.įailing to control the brightness of Windows 7 can have negative effects on both eye health and sleep quality. Not adjusting the screen brightness accordingly can lead to eye fatigue and vision issues. In brighter environments, it is recommended to increase the screen brightness for better visibility.Ĭonversely, in darker environments, it is advisable to decrease the brightness to prevent eye strain. The general rule for adjusting screen brightness is to match it with the brightness of the surrounding environment. On Linux, it's more promising - there is a command-line utility called ddccontrol, despite the mostly abandoned project it still works fine and has ready to use packages for most distributions and I've personally used it with much success.How to adjust screen brightness on windows 7 in a simpler way? On that forum thread there is another option - MControl, it seems to be shareware though I don't see it anywhere on their site and a person claims it still continues to work after the trial period expired, so you should give it a try.įinally there is even another utility called MagicTune by Samsung that seems to basically do the same, plus a horrible UI and even though DDC is standard, I wouldn't be surprised if their software was locked to only work with their monitors, but you can also give it a try. I suggest you ask someone on the linked forum thread if they still have the software and can send it to you (don't forget to check it on VirusTotal just in case). It supports command line arguments, so you can create shortcuts on your desktop to quickly set the brightness at predefined levels if you wanted to. On Windows, there seems to be a software called ScreenBright, or I should say there used to be since the official site now returns a 404 and the homepage says the content was removed because of technical issues (I guess he had enough of users asking for help because the software didn't work for them). It's basically the equivalent of the obnoxious/ugly UI that your monitor has, but accessible directly from the computer and programmatically if you want to. By talk I don't mean just image data but actual bidirectional communication (it's for example used to query the monitor for its supported resolutions and refresh rates). On desktops it's a little different since the computer can't control the backlight's power (the screen has its own independent power supply), however there is still hope - there is a data bus called DDC that allows a computer to "talk" to a display over VGA, DVI or HDMI (and most likely DisplayPort also). Brightness control is done by some ACPI magic that's only available in notebooks, and that basically controls the power that goes to the screen's backlight.
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