The backtrace with LIBGL_DRIVERS_DIR=/usr/lib/dri-classic gdb /usr/lib/xscreensaver/pipes did not create any file. I attach the terminal log.
The backtrace with DIR=/usr/ lib/dri- classic gdb /usr/lib/ xscreensaver/ pipes
LIBGL_DRIVERS_
did not create any file. I attach the terminal log.