Bug 488869

SUMMARY
When snapping a window to a custom tile using shift, kwin prints to journal "kwin_scene_opengl: 0x2: GL_INVALID_OPERATION in glDrawBuffers(unsupported buffer GL_BACK_LEFT)"

OpenGL Info:
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL vendor string:                   AMD
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL renderer string:                 AMD Radeon RX 7900 XTX (radeonsi, navi31, LLVM 17.0.6, DRM 3.57, 6.9.5-zen1)
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL version string:                  4.6 (Core Profile) Mesa 24.1.1
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL shading language version string: 4.60
Jun 21 09:21:42 nxnix kwin_wayland[6389]: Driver:                                 Unknown
Jun 21 09:21:42 nxnix kwin_wayland[6389]: GPU class:                              Unknown
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL version:                         4.6
Jun 21 09:21:42 nxnix kwin_wayland[6389]: GLSL version:                           4.60
Jun 21 09:21:42 nxnix kwin_wayland[6389]: Mesa version:                           24.1.1
Jun 21 09:21:42 nxnix kwin_wayland[6389]: Requires strict binding:                no
Jun 21 09:21:42 nxnix kwin_wayland[6389]: Virtual Machine:                        no
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL vendor string:                   AMD
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL renderer string:                 AMD Radeon RX 7900 XTX (radeonsi, navi31, LLVM 17.0.6, DRM 3.57, 6.9.5-zen1)
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL version string:                  4.6 (Core Profile) Mesa 24.1.1
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL shading language version string: 4.60
Jun 21 09:21:42 nxnix kwin_wayland[6389]: Driver:                                 Unknown
Jun 21 09:21:42 nxnix kwin_wayland[6389]: GPU class:                              Unknown
Jun 21 09:21:42 nxnix kwin_wayland[6389]: OpenGL version:                         4.6
Jun 21 09:21:42 nxnix kwin_wayland[6389]: GLSL version:                           4.60
Jun 21 09:21:42 nxnix kwin_wayland[6389]: Mesa version:                           24.1.1
Jun 21 09:21:42 nxnix kwin_wayland[6389]: Requires strict binding:                no
Jun 21 09:21:42 nxnix kwin_wayland[6389]: Virtual Machine:                        no


STEPS TO REPRODUCE
1. Snap a window to a custom tile

OBSERVED RESULT
kwin prints "kwin_scene_opengl: 0x2: GL_INVALID_OPERATION in glDrawBuffers(unsupported buffer GL_BACK_LEFT)" to journal

EXPECTED RESULT
kwin prints no warnings to journal

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: NixOS
(available in About System)
KDE Plasma Version: 6.1.0
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1

ADDITIONAL INFORMATION
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