[arm-allstar] Pi Terminal Sleep

[James Hause]

Well in my case I had an old spare monitor, and have multiple keyboards
laying around.
I like having the Pi with it's own terminal and keyboard, just makes for a
standalone setup.
I agree with your approach Doug, I just had the hardware to utilize.

On Fri, May 25, 2018 at 11:31 AM, "Charles Powell via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Yes, the console blanking merely clears the screen.  It does not turn off
> the backlight.  Power management to power down the monitor, as far as I
> know, is a function of the X server, which is not installed in HamVOIP
> Allstar (and there is no need to install it either).  Console blanking
> *may* prevent burn-in of the screen.  It  just leaves the idle screen
> blank.  That function has been around since the earliest days of Linux, so
> it’s a take-it-or-leave-it by your preference.  I run all my nodes headless
> so it’s a moot point for me, but others may want to know how to do this.
> It’s a zero resource change to the config.  This is for folks who leave
> monitors attached.
>
> 73,
>
> Charles - NK8O
>
> > On May 25, 2018, at 11:16 AM, Doug Crompton via arm-allstar <
> arm-allstar at hamvoip.org> wrote:
> >
> > There have been some issues with display power management on the Pi.
> > Probably all this does is blank the screen. If the monitor itself sees
> this
> > as a power saving mode I don't know. Modern flat screen monitors do not
> > need to be blanked for screen saving reasons only for power saving. It is
> > unclear on the Pi if this shuts off back lighting or just filters all
> > light. If it just makes the screen black but does not turn off back
> > lighting then it is of little value unless having characters on the
> screen
> > bothers you.
> >
> > It is also really a waste of a good monitor to use HDMI on the Pi. Any
> > computer you have there or elsewhere can ssh to your pi and you would get
> > the same results and save a monitor and keyboard. I have many Allstar
> Pi's
> > and I can't even remember connecting an HDMI monitor except in a portable
> > arrangement. This is also essential if you have many servers. You would
> not
> > have a monitor connected to each but rather ssh sessions opened to each
> on
> > a single computer - Windows, Linux, Mac or whatever.
> >
> >
> > *73 Doug*
> >
> > *WA3DSP*
> >
> > *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio> <
> http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>>*
> >
> >
> >
> >
> >
> > On Fri, May 25, 2018 at 11:55 AM, "Charles Powell via arm-allstar" <
> > arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org>> wrote:
> >
> >> The parameter you are looking to find is called console blanking.
> >>
> >> You can check console blanking with the command 'cat
> >> /sys/module/kernel/parameters/consoleblank’  to tell you whether
> blanking
> >> is on or off. It will return ‘0’ if off.  To enable in /boot/cmdline,
> the
> >> command is ‘consoleblank=xxx’ where xxx is the number of seconds delay
> >> before the screen goes off.   This is a kernel parameter.  /boot/cmdline
> >> must remain a single line.  ‘consoleblank=600’ would give a timeout for
> the
> >> display of 10 minutes.
> >>
> >> 73,
> >>
> >> Charles - NK8O
> >>
> >>
> >>> On May 25, 2018, at 6:15 AM, James Hause via arm-allstar <
> >> arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org> <mailto:
> arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org>>> wrote:
> >>>
> >>> Thanks for the quick reply.  I did the change, but monitor still does
> not
> >>> blank.
> >>> Here is what the config.txt has after I updated.
> >>>
> >>> # See /boot/overlays/README for all available options
> >>>
> >>> gpu_mem=64
> >>> initramfs initramfs-linux.img followkernel
> >>> hdmi_blanking=1
> >>>
> >>>
> >>> On Fri, May 25, 2018 at 1:06 AM, "Doug Crompton via arm-allstar" <
> >>> arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org> <mailto:
> arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org>>> wrote:
> >>>
> >>>> Jim,
> >>>>
> >>>> Now sure why anything would have changed.
> >>>>
> >>>> Try adding -
> >>>>
> >>>> hdmi_blanking=1
> >>>>
> >>>> to /boot/config.txt should fix the issue. Don't change anything else
> in
> >>>> that file.
> >>>>
> >>>> Let us know if that works.
> >>>>
> >>>>
> >>>> *73 Doug*
> >>>>
> >>>> *WA3DSP*
> >>>>
> >>>> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>
> <http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>> <
> >> http://www.crompton.com/hamradio <http://www.crompton.com/hamradio> <
> http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>>>*
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> On Thu, May 24, 2018 at 6:30 PM, "James Hause via arm-allstar" <
> >>>> arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org> <mailto:
> arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org>>> wrote:
> >>>>
> >>>>> Not that this is a big deal, but I have noticed one thing since I did
> >> the
> >>>>> last update today.
> >>>>> On my hardware configuration, I have a 19 inch monitor attached to
> the
> >>>> Pi.
> >>>>> When I boot up my node, I would login, and get to the Admin screen.
> >>>> After
> >>>>> a few minutes of inactivity, the screen would go blank, and I would
> >> just
> >>>>> press a key, and the screen would come back.
> >>>>> After I did the update today, and I login in,  I get the admin
> screen,
> >>>> and
> >>>>> all is good, except now the screen does not go blank after minutes of
> >>>>> inactivity.  Not that this is a big deal, but don't want to burn an
> >> image
> >>>>> on my display, so my question is do I need to change a setting
> >> somewhere
> >>>>> now ?
> >>>>> _______________________________________________
> >>>>>
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> arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org>>
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> >> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar <
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar>>
> >>>>>
> >>>>> Visit the BBB and RPi2/3 web page - http://hamvoip.org <
> http://hamvoip.org/> <
> >> http://hamvoip.org/ <http://hamvoip.org/>>
> >>>>>
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> >> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar <
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar>>
> >>>>
> >>>> Visit the BBB and RPi2/3 web page - http://hamvoip.org <
> http://hamvoip.org/> <
> >> http://hamvoip.org/ <http://hamvoip.org/>>
> >>>>
> >>> _______________________________________________
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> >> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar <
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar>>
> >>>
> >>> Visit the BBB and RPi2/3 web page - http://hamvoip.org <
> http://hamvoip.org/> <
> >> http://hamvoip.org/>
> >> _______________________________________________
> >>
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> >> arm-allstar at hamvoip.org
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> >>
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> > _______________________________________________
> >
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> > arm-allstar at hamvoip.org
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> >
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>
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>