I have a dell xps 15 9550, from a couple of weeks when I hibernate or suspend pc,and after when I try to switch on it doesn't wake up.I have to shutdown it using power button.
Kernel version 4.4.0-36
Thanks.
16.04dellhibernatexps
I have a dell xps 15 9550, from a couple of weeks when I hibernate or suspend pc,and after when I try to switch on it doesn't wake up.I have to shutdown it using power button.
Kernel version 4.4.0-36
Thanks.
Best Answer
At time or writing, the workaround was to downgrade your BIOS to 1.2.0
An alternative is to log in (although you don't see your login screen), and then pump up your brightness to max.
For your configuration, keep an eye on this wiki.
UPDATE (Alternative Solution for 16.04):
This also solved the problem for me on a newer version of the BIOS:
Create a script:
sudo nano /lib/systemd/system-sleep/97fixbacklight
Contents:
Give it the right permissions:
sudo chmod +755 /lib/systemd/system-sleep/97fixbacklight
Restart