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How to enable 10-bit color depth on Linux (and whether to enable 30-bit color)

Posted by Alex On August 31, 2023

Table of contents 1. Does my monitor (TV) use 10-bit color depth 2. Why enable 10-bit color support on Linux 3. How 10-bit color support is implemented in Windows 4. How 10-bit color support is implemented in Linux 5. How to know if my monitor (TV) supports 10-bit color depth 6. How to determine the number of colors (bits per...

How to identify content with 10-bit color depth. How to check what color depth is used in a photo and video

Posted by Alex On August 31, 2023

How can I tell if 10-bit depth is being used in a video or photo? How to determine color depth in an image First of all, if the photo is in JPG format, then it is safe to say that 10-bit color depth is not used in it, because this format simply does not support it. Examples of formats that...

How to watch HDR videos on YouTube on Linux

Posted by Alex On August 31, 2023

To get started, make sure that your monitor supports 10-bit color depth and enable 10-bit (or, as it is usually indicated in the settings, 30-bit) color depth at the level of the Linux operating system. In your web browser's address bar, enter: chrome://flags Use the search to find the “Force color profile” flag. Select “Display P3 D65” color profile. Restart...

Why Google Chrome web browser is gray when 10-bit color is enabled and how to fix it

Posted by Alex On August 31, 2023

After enabling 10-bit color depth on Linux, you may find that some applications turn gray. For some of them, this cannot be fixed, but in Google Chrome you can select the correct color profile, which will make it possible to watch HDR videos on YouTube, while all other websites will have normal brightness. The Google Chrome web browser and Chromium...

How to determine the number of colors (bits per pixel) in X11

Posted by Alex On August 31, 2023

How to determine the number of colors (bits per pixel) in X11 How can I find out how many bits per pixel are actually available in a running X11 session? To check the system-wide value, run the command: xwininfo -root | grep Depth Example output: Depth: 24 The following command will print the supported bitness values for the root window:...

How to fix Linux booting to black screen (SOLVED)

Posted by Alex On August 27, 2023

Pretty harmless video card settings (for example, installing drivers, choosing a video card for video output on a laptop, enabling 10-bit color depth) can lead to a serious problem for beginners: the Linux operating system boots into a black screen. Since this problem cannot be solved by the usual methods in the graphical interface, novice Linux users often come to...

How to enable HDR monitor support in Linux

Posted by Alex On May 28, 2023

Short answer: no way. Currently, HDR is not supported on Linux. What is HDR HDR is a technology that makes the display on a monitor or TV screen more vivid, contrasting and realistic. This is achieved by transferring metadata (in addition to the video stream), based on which some scenes (for proprietary HDR variants) or video in general (for HDR10,...

How to save MySQL query results in a new table

Posted by Alex On May 26, 2023

In MySQL, in one SQL query, you can create a new table and store in it MySQL query results (search results of another table). Or you can save the MySQL query results to another, already existing table. How to store query results in a new table in MySQL Use the following construct: CREATE TABLE new_table SELECT //search terms go here Example:...

Windows guest OS freezes in VirtualBox 7 (SOLVED)

Posted by Alex On May 22, 2023

Upgrading to VirtualBox 7 brought bugs to guest operating systems, some of which are discussed in the notes: Some program areas become transparent or invisible in guest OS Windows after upgrading to VirtualBox 7 (SOLVED) Windows stopped booting in Virtual Machine after upgrading to VirtualBox 7 (SOLVED) After fixing the problems with the actually inoperable Windows 11 guest, other, slightly...

How to get data from a web page using GET and POST methods in a Python script

Posted by Alex On May 21, 2023

Python programs and scripts can make requests to and receive data from websites and web services using the GET and POST methods (as well as other HTTP methods: PUT, PATCH and DELETE). But what if you want to pass data from a web page to a Python script? This can be done in several ways. How to get data from...