NEXLINK 5225 SERIES and X11

[olexandr]

Hi guys,
Does anybody has experience of installing linux with X11 window server on NEXLINK 5225 SERIES all-in-one?
I faced with following issue:
Linux with Xwindow installed on thus all-in-one (cpu Core(TM) i3-2120), all works fine except one thing:
Instead of picture on built-in display I see just cyclic change of colors (Red, Green, Blue, White, Black).
In Xorg.0.log, dmesg, etc. there is no errors, just like everything fine. But no graphic.
lspci -vv and dmidecode in comments:

Tested on debian squeeze and knoppix live.