https://bugs.kde.org/show_bug.cgi?id=442386
--- Comment #3 from C. Leu <k...@bluewin.ch> --- Here follows a short status update. Just for reference, - until now I was NOT able to reproduce any sort of a "stuttering effect" with the EGL backend. In the meantime I switched at a further iMac computer running Kubuntu 20.04 LTS (and containing a Radeon 6770M GPU) to the OpenGL ES / EGL backend. Also here, no negative side-effect, just a benefit in the KDE Plasma GUI behavior: iMac12,2 (16GB RAM, native EFI, R600 Mesa 21.0.3) I searched at the web regarding this EGL/GLXÂ matter and found the information that Firefox 94 will make EGL to its default: https://www.itsfoss.net/firefox-94-will-change-the-output-for-x11-to-use-egl-by-default/ However, this is true only if Mesa 21.x driver version (or higher) is present. Fortunately that's the case for an up-to-date Kubuntu 20.04 LTS installation. ;-) I also found some information which indicates that the mentioned EGL "stuttering effect" may be more an issue of the proprietary Nvidia Linux driver. Regarding the Radeon side I can confirm for Mesa 21.0.3 that the OpenGL ES / EGL backend runs great on several quite different older Radeon GPUs. The most impressive benefit I noticed at my oldest and weakest iMac5,1 computer. The usability jumped from "not really usable" to almost "perfectly usable" in near any office-work related scenario. So out of my perspective as a Linux user I simply don't understand why there exist no "user-friendly way" to enable the OpenGL ES / EGL option in the compositor. It doesn't have to be the default setting. Just an option to play with it. ;-) Whatever, I know this will all change with Wayland but I assume that this bigger "switchover" will then probably also exclude some older hardware. My conclusion is therefore, it's time to change to EGL also on X11! Well, - at least for systems with the awesome Mesa drivers... ;-) -- You are receiving this mail because: You are watching all bug changes.
