Откуда вылазит черный экран (blanc screen)?

xset q - сотришь, выключен или нет;
xset s off, если нет.

xset q
Keyboard Control:
auto repeat: on key click percent: 0 LED mask: 00000000
auto repeat delay: 500 repeat rate: 30
auto repeating keys: 00ffffffdffffbbf
fadfffdfffdfe5ef
ffffffffffffffff
ffffffffffffffff
bell percent: 50 bell pitch: 400 bell duration: 100
Pointer Control:
acceleration: 2/1 threshold: 4
Screen Saver:
prefer blanking: yes allow exposures: yes
timeout: 0 cycle: 0
Colors:
default colormap: 0x20 BlackPixel: 0 WhitePixel: 16777215
Font Path:
/usr/X11R6/lib/X11/fonts/misc:unscaled,/usr/X11R6/lib/X11/fonts/75dpi:unscaled,/ usr/X11R6/lib/X11/fonts/Type1,/usr/X11R6/lib/X11/fonts/URW,/usr/X11R6/lib/X11/fo nts/cyrillic,/usr/X11R6/lib/X11/fonts/latin2/misc:unscaled,/usr/X11R6/lib/X11/fo nts/baekmuk:unscaled,/usr/X11R6/lib/X11/fonts/japanese:unscaled,/usr/X11R6/lib/X 11/fonts/truetype,/usr/X11R6/lib/X11/fonts/uni:unscaled,/usr/X11R6/lib/X11/fonts /misc/sgi:unscaled,/opt/kde3/share/fonts
Bug Mode: compatibility mode is disabled
DPMS (Energy Star):
Standby: 7200 Suspend: 7200 Off: 14400
DPMS is Disabled
............

выключен и так.

>Screen Saver:
>prefer blanking: yes allow exposures: yes 

xset s noblank