I'm having the exact same problem in a clean installation of Ubuntu 18.04.
I'm on a Lenovo Legion Y720. Even suspending by command or by closing the lid,
it hangs. I can see a dash blinking in top left of the screen. In that stage,
the laptop is not completely dead: the numlock button stills toggles the
numlock led. But when I hit ctrl-alt-F1, then the blinking dash disappears and
numlock button doesn't even work any more. From then, I have to hard reset the
machine. My logs look just like the OP described, so the machine actually
thinks it went to sleep.
It's odd that it doesn't happen all the time. Sometimes it suspends correctly.
I'm using nVidia drivers. Some said that driver might be the problem, although
some people report having the same problem with intel cards.
Not sure if related, but I got LOTS of these on dmesg:
[dom jun 10 20:55:04 2018] pcieport 0000:00:1c.4: PCIe Bus Error:
severity=Corrected, type=Data Link Layer, id=00e4(Transmitter ID)
[dom jun 10 20:55:04 2018] pcieport 0000:00:1c.4: device [8086:a114] error
status/mask=00001000/00002000
[dom jun 10 20:55:04 2018] pcieport 0000:00:1c.4: [12] Replay Timer Timeout
Also, in those cases where it actually suspends ok, sometimes it
randomly wakes up as if someone would have opened the lid (many times I
double checked it was actually suspended before putting the laptop in my
backpack and then found it freakingly hot because it turned on by
itself).
I'm running Ubuntu on Samsung SSD 850 Pro and I also have a WD Black M.2
on the pci express slot with a different SO.
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https://bugs.launchpad.net/bugs/1774950
Title:
Suspend fails in Ubuntu and Kubuntu 18.04 but works fine in Ubuntu and
Kubuntu 17.10 (and on Kubuntu 18.04 using kernel 4.14.47)
Status in linux package in Ubuntu:
Confirmed
Bug description:
I have installed Kubuntu 18.04 on 3 different machines (my friend's
and my own) with no suspend problems but my HP Pavilion 11 x360 does
not suspend.
It suspends fine with Ubuntu 17.10, Kubuntu 17.10, Devuan Jesse,
Devuan ASCII and Windows 10 but fails with Ubuntu 18.04 and Kubuntu
18.04.
I have also tried suspend using a live USB of 18.04 on this machine
and it fails in the same way, so does not appear to be caused by any
additional programs that I had installed.
By installing an older kernel (4.14) on Kubuntu 18.04 the suspend
function works as expected.
Running Kubuntu 18.04 with kernels 4.15, 4.16, 4.17 results in the
suspend failure that freezes the machine and requires a hard reset.
Correct behaviour is -
Screen goes blank, fan goes off, power LED flashes to show machine is
in suspend. Pressing power button triggers 'resume' function.
What happens -
Screen goes blank, fan stays on, power LED stays on. Machine stays in
this state and does not respond to any keyboard interaction, mouse
movement or power button presses.
Ctrl + Alt + f1 (or f2, f3, f4 etc) does not get any response.
The only way to use the machine is to shut down by holding down the
power button.
Checking the logs suggests that the machine believes it is in suspend mode
sleep [deep] when it isn't.
Having to hard reset to get any response means that the kernel logs
say no more than sleep [deep]
pm-suspend also results in the same problems with kernels 4.15 and
4.16, but works fine with 4.14.
It is curious that a machine that suspends fine on an earlier 4.14
kernel no longer works with 4.15 and above, whilst 3 other machines
(including one with pretty similar hardware) do not exhibit this
problem.
There are only a handful of questions about it on the forums but at
least 3 other people have the same problem:
https://askubuntu.com/questions/1029405/ubuntu-18-04-crashes-on-
resuming-from-suspend
https://askubuntu.com/questions/1041369/after-upgrading-
from-17-10-ubuntu-18-04-wont-sleep-suspend
I am attempting to round up anyone else with the same issue and point
them to this bug report.
My laptop is HP Pavilion x360 11-n013na
Matalaks is Acer Aspire ES1-511
collisionTwo has XPS 9560
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