On Wed, 8 Sep 2021 15:22:10 -0500
Roger Heflin <rogerheflin@xxxxxxxxx> wrote:
> if you have ssh setup on the laptop you can ssh into the laptop
> remotely and/or ping it. If ping works or you can ssh into it it did
> not suspend.
>
>
>
> I have mine so that suspend is disabled when the lid is close but in
> place I have this script started up in rc.local:
> #!/bin/bash
> laststate=open
> while [ true ] ; do
> lidstate=`cat /proc/acpi/button/lid/LID0/state | awk '{print $2}'`
> if [ "${lidstate}" == "open" ] && [ "${laststate}" == "closed" ] ;
> then logger -s "at `date` lid was opened - full speed"
> /usr/local/bin/highspeed
> laststate=${lidstate}
> grep -i mhz /proc/cpuinfo | logger -s
> elif [ "${lidstate}" == "closed" ] && [ "${laststate}" == "open" ]
> ; then logger -s "at `date` lid was closed - low speed"
> /usr/local/bin/lowspeed
> laststate=${lidstate}
> grep -i mhz /proc/cpuinfo | logger -s
> fi
> sleep 10
> done
>
> lowspeed does this:
> echo 400000 > /sys/devices/system/cpu/cpufreq/policy1/scaling_max_freq
> echo 400000 >
> /sys/devices/system/cpu/cpufreq/policy2/scaling_max_freq echo 400000
> > /sys/devices/system/cpu/cpufreq/policy3/scaling_max_freq echo
> > 400000 > /sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq
>
> And that keeps mine cool while still leaving it running.
>
> if I use it remotely via VNC I then run a script called highspeed that
> turns the max_freq to full
>
> My script you could modify to report the lid state every 10 seconds
> rather than going low power and log that to a file with the date/time.
>
> On Wed, Sep 8, 2021 at 1:39 PM Anil F Duggirala
> <anilduggirala@xxxxxxxxxxx> wrote:
> >
> > Hello,
> >
> > I have been experiencing an issue on sporadic occasions. Having
> > worked on my laptop, I close the lid and expect it to suspend. An
> > hour later I open the lid, I see that it is on (not suspended) and
> > am shown a black screen and the laptop is smoking hot (really hot).
> > I hard shutdown turns the system off (havent tried any other way to
> > get the system working because the temperature is so high I get
> > scared, I dont really remember if the fans were on at this point,
> > although I believe they are not because the temperature is really
> > high).
> >
> > This has happened a few times, but is not happening always. How can
> > I test suspend action when laptop lid is closed? How can I test the
> > laptop lid close sensor is working? What can I do if this happens
> > again? Is there a way to log temperatures to make sure the system
> > is shutting down when high temperatures are reached?
> >
> > System: Fedora WS 34 on Dell XPS 15 with 4K touchscreen (this
> > screen is heavy and I believe could generate a lot of heat too if
> > it is left on).
Have you considered the possibility that you have a loose connection
between the lid and the motherboard?
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