port-hpcmips/41165: Sleep/suspend/turn off backlight does not work properly (MP750C)

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>Number:         41165
>Category:       port-hpcmips
>Synopsis:       Sleep/suspend/turn off backlight does not work properly 
>(MP750C)
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-hpcmips-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Apr 07 11:55:00 +0000 2009
>Originator:     Ed
>Release:        NetBSD/hpcmips 4.0.1
>Organization:
None
>Environment:
NEC MobilePro 750C
>Description:
Backlight does not turn off and screen is not blanked when trying to sleep, 
suspend or even close the lid on the NEC MobilePro 750C.

In addition, sleep and suspend do not work correctly at all. Attempting to 
sleep will typically do nothing, while attempting to suspend will typically 
lock the machine up, leaving it unresponsive to anything but a Ctrl+Alt+Esc to 
enter the debugger. It may take a few tries before it will react properly.

Additionally, leaving the device in this psuedo-suspend mode for an extended 
period, or even leaving the device alone for too long will cause it to lock up 
hard and respond to nothing, it shares this particular behavior with the NEC 
MobilePro 880.
>How-To-Repeat:
See description
>Fix:
Unknown