Recent Versions (27.0.1) run on a Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) (Mesa DRI Mobile IntelĀ® GM45 Express Chipset (CTG) (0x2a42) respectively) with environment settings
MESA_GL_VERSION_OVERRIDE=3.33 MESA_GLSL_VERSION_OVERRIDE=330
i.e.
MESA_GL_VERSION_OVERRIDE=3.33 MESA_GLSL_VERSION_OVERRIDE=330 obs
References: