| > try booting with serial console?
 | > connect 2010c to terminal soft.
 | > more info,http://www.netbsd.org/Ports/hpcmips/
 | 	[Bernard Stephan]  I obtain exactly the same result, except that the
 | red line is now on the top of the screen :-(
 | 	But I don't think it's a display driver problem, because I have some
 | informations displayed in text mode in the begining. And when the red line
 | appears, I can't do anything anymore, even switching off my HPC... Has
 | anyone an idea ?

Did you try serial console?
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UCHIYAMA Yasushi
uch@nop.or.jp