# more /var/log/Xorg.0.log | grep EE && more /var/log/Xorg.0.log | grep WW
Current Operating System: Linux portable 2.6.21-ARCH #1 SMP PREEMPT Mon Jun 11 23:47:51 CEST 2007 i686
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(II) Loading extension MIT-SCREEN-SAVER
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
(WW) VESA(0): Bad V_BIOS checksum
(WW) VESA(0): Bad V_BIOS checksum