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port-i386/38410: ibm X31 goes into SUSPEND (S3) state with backlight on

>Number:         38410
>Category:       port-i386
>Synopsis:       ibm X31 goes into SUSPEND (S3) state with backlight on
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Apr 12 09:45:00 +0000 2008
>Originator:     George Michaelson
>Release:        current
NetBSD 4.99.58 NetBSD 4.99.58 (GENERIC) #2: Fri Apr 11 20:55:11 EST 2008 
ggm@:/usr/obj/sys/arch/i386/compile/GENERIC i386
re-installed current, tested sysctl -w machdep.sleep_state=3 

machine suspends to RAM fine. Except. during S3 state, backlight is on.

I have a sleep script which does wsconscfg -g/-s sequences to restore the 
correct binding. maybe this tickles the problem, but I don't think so since it 
completes before the sysctl call.

I used to call radeontool to force the light off, but I wanted to let you know 
it doesn't get turned off by the current kernel S3 transition on this platform


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