Comment 3 for bug 1705551

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/
> 1705551/+subscriptions
>