sleser@debian:~$ egrep 'Load.*mod.*driv|UnloadModule' /var/log/Xorg.0.log
[    25.523] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
[    25.613] (II) UnloadModule: "nv"
[    25.614] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    25.623] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[    26.010] (II) UnloadModule: "vesa"
[    26.010] (II) UnloadModule: "fbdev"
sleser@debian:~$ ^C
sleser@debian:~$