Sorry, I forgot to make a correction to my [Additional Information] which I
re-tested. After my cron backup job is finished it will check if the lid is
closed. If it is closed then it will run pm-suspend. If I then open the
lid, the laptop resumes without a normal working display. So pm-suspend
suspended the laptop without a display and the next time I open the lid the
laptop resumes without a display.

Thanks,
Pierre


On Fri, Jul 21, 2017 at 4:04 PM, Pierre Fortier <email address hidden>
wrote:

> Hi,
>
> With regards to "FN keys", I tried all the FN keys and Ctrl+Alt+FN keys
> and Esc and many others but nothing worked.
>
> With regards to "never close the lid, but suspend via SW", (1) while in
> xfce account I ran sudo pm-suspend which suspended the laptop and (2) I
> then pressed the shift key and the laptop resumed normally with a working
> display. I repeated this with a remote ssh login into the laptop and it
> also worked perfectly.
>
> With regards to "xset dpms force off", when I do a remote ssh login into
> the laptop which resumed from wakealarm and has no display, I don't see a
> DISPLAY environment variable. When I execute "sudo -u bierre env DISPLAY=:0
> /usr/bin/xrandr --auto", the system reports:
>
> No protocol specified
> Can't open display :0
>
> I don't know if I am remotely executing this command correctly.
> Furthermore, I don't know how to reach xorg to execute "xset dpms force
> off".
>
> Thanks,
> Pierre
>
>
> On Fri, Jul 21, 2017 at 3:50 AM, ChristianEhrhardt <
> <email address hidden>> wrote:
>
>> Hi,
>> you said "all sorts of keyboard combinations" but maybe it is worth a
>> try. I had a similar case where it actually enabled the display, but at
>> brightness 0 - you might not accidentally have the same case? I could get
>> it on by using the FN keys to increase brightness in those cases.
>>
>> Another question would be if you never close the lid, but suspend via SW.
>> And next day you wakeup via the alarm (while the lid was still open when
>> sleeping) - is it then waking up normally with display enabled?
>>
>> Finally - I beg your pardon as I'm not an expert on this - but the
>> following could enable it.
>> You might need tweaks to actually "reach" your xorg, but I'm sure you can
>> do that. Once you did call:
>>  $ xset dpms force off
>> That should disable the power saving blank that your screen is in.
>>
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/1705551
>>
>> Title:
>>   close lid suspends correctly and wakealarm resumes from suspend to run
>>   cron jobs but opening lid reveals no display
>>
>> Status in pm-utils package in Ubuntu:
>>   Incomplete
>>
>> Bug description:
>>   [Problem]
>>
>>   When I close the laptop lid, pm-action runs the following code which I
>>   have added:
>>
>>   sh -c "echo 0 > /sys/class/rtc/rtc0/wakealarm" # clear alarm
>>   sh -c "echo `date '+%s' -d '7am next day + 30 minutes'` >
>> /sys/class/rtc/rtc0/wakealarm" # set alarm
>>
>>   and then suspends. At 7:30 AM the next day, the laptop resumes from
>>   suspend with the lid closed and executes cron jobs (e.g. some
>>   backups). If I open the lid then there is no display. I tried several
>>   options to resume the display:
>>
>>   - [FAILS] all sorts of keyboard combinations
>>   - [FAILS] ssh -X into laptop and execute "sudo -u bierre env DISPLAY=:0
>> /usr/bin/xrandr --auto" (n.b. when I run "sudo -u bierre env" there is no
>> DISPLAY variable)
>>   - [MANUAL HACK] closing the lid causes the laptop to suspend and then
>> opening the lid causes it to resume with a normal working display
>>
>>   I would like a solution or SOFTWARE HACK which I could add to /usr/lib
>>   /pm-utils/sleep.d/99video during resume from suspend triggered by
>>   wakealarm so that opening the lid would reveal a working display.
>>
>>   [Laptop System Information]
>>
>>   laptop = MacBookPro5,5
>>   pm-utils version = 1.4.1-13ubuntu0.2
>>   kernel = Linux version 3.19.0-32-generic (buildd@lgw01-43) (gcc
>> version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #37~14.04.1-Ubuntu SMP Thu Oct 22
>> 09:41:40 UTC 2015
>>   OS = "Linux Mint 17.3 Rosa" based on "14.04.3 LTS, Trusty Tahr"
>>   desktop environment = XFCE
>>   video card = NVIDIA Corporation C79 [GeForce 9400M] (rev b1) (prog-if
>> 00 [VGA controller])
>>   video driver = [633938.944] (II) NOUVEAU(0): Output LVDS-1
>>
>>   [Additional Information]
>>
>>   After my cron backup job is finished it will check if the lid is
>>   closed. If it is closed then it will run pm-suspend. If I then open
>>   the lid, the laptop resumes with a normal working display. So the
>>   problem of no visible display occurs only when I open the lid after
>>   resume from wakealarm and before the backup job suspends the laptop.
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1705
>> 551/+subscriptions
>>
>
>