https://bugs.kde.org/show_bug.cgi?id=442386
--- Comment #4 from C. Leu <k...@bluewin.ch> --- Again a short update. During the last few weeks it has been shown that the best way to enforce EGL in kwin is through the "KWIN_OPENGL_INTERFACE=EGL" and not the "KWIN_COMPOSE=O2ES" variable. This will effectively keep the OpenGL 2.0 or OpenGL 3.1 "function feature set" and just force EGL over GLX. sudo nano /etc/profile.d/kwin.sh export KWIN_OPENGL_INTERFACE=EGL The first mentioned "KWIN_COMPOSE=O2ES" environment variable is also applicable but it will additionally switch the compositing to OpenGL ES 2.0. Just to be clear, this is perfect for weaker hardware like single core Netbooks, AIO computers, or older systems with limited GPU functionality. Such lower-end systems may benefit significantly from the OpenGL ES 2.0 mode, like the previously mentioned Apple iMac5,1 from 2006. However, the OpenGL ES 2.0 compositing may limit in certain situations some enhanced graphical effects of a theme. I can confirm this now for the "Se7en Aero" global design which shows partially missing elements. For example, all frames in dolphin are becoming "transparent". This is not the case regarding the regular OpenGL backend in conjunction with EGL. It should also be noted that this is not the case for the standard (more basic) KDE designs "Breeze" and "Breeze-Dark", - they work fine even with only OpenGL ES 2.0 feature set. Whatever, maybe there will be in the future beside a Vulkan additionally also an OpenGL ES 3.0 rendering backend, - it would allow more effects on weaker hardware. ;-) -- You are receiving this mail because: You are watching all bug changes.
