Sleep with ubuntu 16.04 with kernel 4.4

[claudio]

Hi,

I upgraded my samsung series 7 ultra from ubuntu 15.10 to 16.04.
After this I was not able to suspend the computer. The screen became black but the fan continued to work.
I tried to restore the previous kernel: from 4.4 to 4.2 and the sleep function works properly

Thanks

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1574036/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Roygbiv (silentvoice37)]

Exactly same bug on Dell Inspiron 15 5000 Series after I updated to Ubuntu 16.04. Suspend was working great when on 15.10.

Whenever I suspend either manually or automatically (e.g. after 1 hour of inactivity), the laptop screen becomes black but the fan continues working (I don't know whether the os is actually working). When I open the lid or click the power button to resume, nothing is happening. I have to shut down the laptop by pressing the power button for a few seconds and then boot again.

[claudio (cardi-93)]

Exactly the same behaviour, have you tried to use the kernel 4.2 on Ubuntu 16.04? This worked for me

[Roygbiv (silentvoice37)]

^ After I reverted to 4.2 kernel, suspend/resume works again. Hopefully the issue gets fixed at the newest kernel version.

[penalvch (penalvch)]

claudio, thank you for reporting this and helping make Ubuntu better.

Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
apport-collect 1574036

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[TORTI17 (ubuntu-tortisoft)]

Do you use USB 3.0?

I disconnected the USB 3 Flash Stick on USB 3 Port and now suspend seem to work.

I have Desktop + Notebook.
Notebook always worked, but not desktop.
So I checked, was the difference:
- AMD APU on both
- SSD on both
- ubuntu fresh install with 16.04
- 64bit
- but USB 3 only on desktop.

Do you have luck with disable usb 3?

PS: it only happens, when USB superspeed is in use

[penalvch (penalvch)]

TORTI17, it will help immensely if you filed a new report with the Ubuntu repository kernel (not mainline/upstream) via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

For more on why this is helpful, please see https://wiki.ubuntu.com/ReportingBugs.

[TORTI17 (ubuntu-tortisoft)]

I don't need help. I disabled USB3 and can live with that. The other people here around have trouble and someone should help them.
I now unsubscribe here. Bye.

[Michal Bultrowicz (michalbultrowicz)]

Shouldn't this be marked as a duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1570899 ?

[claudio (cardi-93)]

With 4.4.0-28 it seems that suspend and hibernate work

[penalvch (penalvch)]

claudio, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574036/comments/11 regarding this being fixed with an update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.