Graphics: Screen Tearing, Wayland Alpha Compositing Protocol, AMDGPU
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What Is Screen Tearing and How to Get Rid of It on Linux
Unfortunately for Linux fans, screen tearing is, and has been, a persistent annoyance that doesn’t seem to be going anywhere. There are a couple of factors enabling the longevity of the screen tearing issue.
First, and probably most obviously, is the dated, broken, and bloated X server. Even with the progress of Wayland, X is here to stay for the immediate future. Next is the strange and inconsistent graphics driver picture. One of the biggest offenders in causing screen tearing is also the most popular GPU manufacturer on Linux, NVIDIA. Throw in different desktop environments with their own display settings and compositors, and you have a real mess.
These methods will hopefully eliminate screen tearing in most situations, but it’s impossible to provide a one-size-fits-all solution, thanks to the amount of variables involved. Try what applies to your system, and keep in mind that there might be new factors involved.
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Collabora Revives Work On Alpha Compositing Protocol For Wayland
Collabora's Scott Anderson has revived work on the alpha compositing protocol for Wayland, which is based upon the work done by Google on this functionality for Chromium on Wayland.
The Wayland Alpha Compositing Protocol is intended to control the alpha compositing and blending of surface contents within a Wayland environment. This experimental protocol allows for advanced blending and alpha operations on Wayland surfaces (wl_surface) and Google's work on it dates back at least two years.
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Radeon Linux Driver Preparing Adaptive Backlight Management (ABM)
The "AMDGPU" Radeon Linux kernel graphics driver is preparing support for "Adaptive Backlight Management" as a backlight power-savings feature for laptops.
Adaptive Backlight Management reduces the backlight level in an effort to save power but increases the pixel contrast and luminance to improve image quality and readability under the lower light condition.
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