After playing with installing and removing the amdgpu and amdgpu-pro drivers, my system could not load the radeonsi. glxinfo returned the following error:
$ DRI_PRIME=1 glxinfo | grep OpenGL
libGL error: unable to load driver: radeonsi_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: radeonsi
It was solved by cleaning up leftover symlinks and reinstalling libgl-mesa-dri
$ sudo find /usr/lib/ -lname "/opt/amdgpu/*" -print -delete
/usr/lib/i386-linux-gnu/dri/kms_swrast_dri.so
/usr/lib/i386-linux-gnu/dri/r600_dri.so
/usr/lib/i386-linux-gnu/dri/r200_dri.so
/usr/lib/i386-linux-gnu/dri/vmwgfx_dri.so
/usr/lib/i386-linux-gnu/dri/swrast_dri.so
/usr/lib/i386-linux-gnu/dri/radeonsi_dri.so
/usr/lib/i386-linux-gnu/dri/r300_dri.so
/usr/lib/x86_64-linux-gnu/dri/kms_swrast_dri.so
/usr/lib/x86_64-linux-gnu/dri/r600_dri.so
/usr/lib/x86_64-linux-gnu/dri/r200_dri.so
/usr/lib/x86_64-linux-gnu/dri/vmwgfx_dri.so
/usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
/usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
/usr/lib/x86_64-linux-gnu/dri/r300_dri.so
$ sudo apt install --reinstall libgl1-mesa-dri
Came across this while trying to setup lutris on Centos 8.0 (also had to compile wine). I was also playing with installing and removing the amdgpu and amdgpu-pro drivers, though I don’t think this is to blame.
I was getting the following when running lutris:
…
libGL error: unable to load driver: radeonsi_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: radeonsi
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 150 (GLX)
Minor opcode of failed request: 3 (X_GLXCreateContext)
Value in failed request: 0x0
Serial number of failed request: 241
Current serial number in output stream: 245
This was fixed by installing the i686 version of mesa-dri-drivers. If this is not enough try to also install all the i686 mesa-lib* packages using yum.