Recently bought Saints Row 4 for Linux. But it needs OpenGL 4.1, when my graphics card(ATI 5470 Mobilty Graphics) haves 3.3. My notebook is running now Ubuntu 16.04.1, Mesa from Padoka PPA. I tried to replace OpenGL version:
export MESA_GL_VERSION_OVERRIDE=4.1COMPAT
export MESA_GLSL_VERSION_OVERRIDE=410
Then i launched Steam and took black screen with sound when game works. Also i tried
export LANG=C
export LC_NUMERIC=POSIX
export force_s3tc_enable=true
But it has no effect too. Notebook Lenovo G565 with AMD processor, Ubuntu 16.04.1 with Mesa from Padoka PPA. How to run game on OpenGL 3.3 without black screen? With bugs, glitches, but without black screen. Thanks.