Date: Sat, 31 Jan 2004 05:33:16 +0000 From: Randy Bush <randy@psg.com> To: James Green <jim@thebadger.org> Cc: freebsd-current@freebsd.org Subject: Re: API to turn off the display Message-ID: <E1Amnkq-000BMN-OW@psg.com> References: <1075401074.2660.106.camel@mobius.int.thebadger.org> <bvbnk1$56h$1@sea.gmane.org> <1075418369.2662.170.camel@mobius.int.thebadger.org>
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> I have found that too. I did most of my testing over ssh, until I setup > a serial login console (boot -h, and appropriate line in /etc/ttys) , so > I could see any messages that I might be missing... and I could not > reproduce the hang. Suspended without any problem at all. Tried booting > with the -h and I could reproduce the hang every time. > > Recompiled the kernel with: > options SC_NO_SUSPEND_VTYSWITCH > > and now it all works! > > I added to rc.suspend: > > xset -display :0 dpms force off > sleep 3 > sysctl hw.acpi.video.lcd0.active=0 > sleep 1 > sysctl hw.acpi.cpu.throttle_state=1 > > and to rc.resume: > > sysctl hw.acpi.cpu.throttle_state=8 > xset -display :0 dpms force on > sysctl hw.acpi.video.lcd0.active=1 > > The order of DPMS and ACPI is important. This works on both the console > and in X. Next up is to add in ataidle... this helps a LOT. but ... i can suspend once and resume once. after that, it will not suspend with lid or button. randy
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