https://bugs.kde.org/show_bug.cgi?id=476569
Bug ID: 476569
Summary: kwin gles backend not working with ANGLE
Classification: Plasma
Product: kwin
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: egl
Assignee: kwin-bugs-n...@kde.org
Reporter: kde-y...@qq.com
Target Milestone: ---
I'm trying to run kwin using ANGLE. It provides libEGL that only supports gles.
Compositing does not work. Please workaround it.
```
user@archlinux-114514 ~> export KWIN_COMPOSE=O2ES
user@archlinux-114514 ~> export QT_XCB_GL_INTEGRATION=xcb_egl
user@archlinux-114514 ~> export KWIN_OPENGL_INTERFACE=egl
user@archlinux-114514 ~> export
LD_PRELOAD=/home/user/src/angle/out/Release/libEGL.so
user@archlinux-114514 ~> glmark2-es2
=======================================================
glmark2 2023.01
=======================================================
OpenGL Information
GL_VENDOR: Google Inc. (AMD)
GL_RENDERER: ANGLE (AMD, Vulkan 1.3.246 (AMD Radeon Graphics (RADV
RAPHAEL_MENDOCINO) (0x0000164E)), radv-23.1.6)
GL_VERSION: OpenGL ES 3.1.0 (ANGLE 2.1.1 git hash: 75c0b859a0ab)
Surface Config: buf=32 r=8 g=8 b=8 a=8 depth=24 stencil=0 samples=0
Surface Size: 800x600 windowed
=======================================================
[build] use-vbo=false: FPS: 10585 FrameTime: 0.094 ms
=======================================================
glmark2 Score: 10584
=======================================================
user@archlinux-114514 ~> kwin_x11 --replace
Cannot find EGLConfig, returning null config
Cannot find EGLConfig, returning null config
kwin_xkbcommon: XKB: inet:323:58: unrecognized keysym "XF86EmojiPicker"
kwin_xkbcommon: XKB: inet:324:58: unrecognized keysym "XF86Dictate"
kwin_scene_opengl: eglInitialize failed
kwin_scene_opengl: Error during eglInitialize 12296
kwin_core: choose config failed
kwin_core: Creating egl surface failed
kwin_scene_opengl: Creating the OpenGL rendering failed: "Could not initialize
rendering context"
```
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