A few programs require a working Mesa-Library to display stuff. I use latest iso and update on a Sun Blade 100, kernel 5.7.0-1, libgl1-mesa-dri 20.1.2-1, Xorg 1.20.8
On this machine i can use only software rendering. Mesa provides three software rendering GALLIUM drivers: swrast, softpipe and llvmpipe. llvmpipe seems somehow broken and leads to a bus error, also causing window managers like marco and a lot of other programs to not work correctly unless reconfigured not to use llvm. I got the following results with glxgears: GALLIUM_DRIVER=softpipe glxgears -> runs GALLIUM_DRIVER=llvmpipe gdb glxgears -> Bus Error (gdb) run Starting program: /usr/bin/glxgears [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/sparc64-linux-gnu/libthread_db.so.1". Program received signal SIGBUS, Bus error. 0xfffff801030c87f0 in ?? () from /usr/lib/sparc64-linux-gnu/dri/swrast_dri.so (gdb) bt #0 0xfffff801030c87f0 in ?? () from /usr/lib/sparc64-linux-gnu/dri/swrast_dri.so Backtrace stopped: previous frame identical to this frame (corrupt stack?) GALLIUM_DRIVER=swr glxgears -> not working libGL error: failed to create dri screen libGL error: failed to load driver: swrast X Error of failed request: GLXBadContext Major opcode of failed request: 151 (GLX) Minor opcode of failed request: 6 (X_GLXIsDirect) Serial number of failed request: 43 Current serial number in output stream: 42 Regards, Connor