While the program will automatically detect your location and adjust gamma levels accordingly, you can still opt to manually set a location of your choice. You can even view a preview to see how this will transpire over a 24-hour period so you can tweak it to your preference. The third slider is for setting the duration at which one will transition to the other.

Once installed, you enable and configure it from your system tray.Īccess LightBulb's configuration options, and it will provide you with three main sliders to you can use to adjust color temperatures for both daytime and nighttime. It works in a similar way in that it is able to adjust the gamma levels of your screen dynamically based on your geolocation and time of day. If you've used the latter before, the former will provide a familiar user experience. LightBulb is essentially a free and open-source alternative to the ever-popular blue light filter tool, F.lux. ) check this link.ĭownload the version that suits you, then open the download folder and run sudo dpkg -i. If you want to download a different version than the official one supported by your Ubuntu release (i.e 2.27 for 18.04, 2.30 for Ubuntu 19.10. However libc6_2.30 and lib6_2.31 are available via this link (2.31 is the official version for Ubuntu 20.04). If you want to install libc6 i386, you can download it from this link, then open the download folder in the terminal and run sudo dpkg -i libc6_2.29-0ubuntu2_bĪs per now, libc6_2.29 does not exist anymore. If you want to install libc6 amd64, open this link to download it, then open the download folder in the terminal and run sudo dpkg -i libc6_2.29-0ubuntu2_b And it is available for Ubuntu 19.04 ( link). To my knowledge, libc6 2.29 is the latest version.

So anyone who is trying this, please be careful and make sure you create backups before trying it. Some reported that their systems crashed after using this answer.

LightBulb 2.4.6 for ios instal