Bug#1101215: QOpenGLWidget: error: GL_INVALID_OPERATION in glDrawBuffers(unsupported buffer GL_BACK_LEFT)

[Antonio Russo <aerusso@aerusso.net>]

Package: libqt6opengl6
Version: 6.8.2+dfsg-5
Severity: normal
X-Debbugs-Cc: aerusso@aerusso.net

Dear Maintainer,

Please see upstream bug report [1], referenced by [2], and resolved in
QT 6.8 (but not 6.8.2) via [3].

A symptom of this bug is

  kwin_wayland_wrapper[$PID]: kwin_scene_opengl: 0x2: GL_INVALID_OPERATION in glDrawBuffers(unsupported buffer GL_BACK_LEFT)

I'm not sure if this is the right binary package, but the fix is against
source package qt6-base.

Best,
Antonio Russo
  

[1] https://bugreports.qt.io/browse/QTBUG-122819
[2] https://gitlab.freedesktop.org/mesa/mesa/-/issues/11850
[3] https://codereview.qt-project.org/c/qt/qtbase/+/619407