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Old 17th March 2017, 06:34 PM
bobx001 Offline
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Join Date: Dec 2012
Location: santa barbara, CA
Posts: 339
Re: LAptop does not resume after hibernate/suspend

Originally Posted by ErwinBaeyens View Post
I did exactly that and the problem is still the same;
I added the uuid of my swap to the /etc/default/grub file.
ran grub2-mkconfig
ran reboot
logged in and hit suspend.
when it was down I hit the powerbutton and let it come back on.
the screen stayed dark as before. as if it is not powered.


maybe take out the "quiet" in
GRUB_CMDLINE_LINUX="rhgb quiet ...."
in /etc/default/grub
and recreate with grub2-mkconfig -o /boot/grub2/grub

after that, I am at a loss, only thing that would then occur to me is that the laptop itself switches off the screen as some sort of power management. Did you also try the laptop screen buttons ? luminosity ?

One thing that would be interesting is, since the laptop is actually on, and you can ssh in,
when it comes back from hibernate/suspend with the black screen, try hitting CTRL-ALT-F2, and log in as root, and see if you are actually logged into the Console, by checking with "w" from the other comp when you ssh in. i.e. to determine if's only a screen issue, or the keyboard also gets locked up.
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hibernate or suspend, laptop, resume

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