Hi Ranjan,
I have done all of those steps. Created big enough swapfile. Added the resume flag. Updated grub.cfg. Disabled the secure boot. It still doesn't work. I have wasted 24 hours of my life on this stupid thing. I am now reinstalling with a dedicated swap partition. This is very unfortunate that things don't work on systems that are shipped with Linux preinstalled (Precision 5510 came with Ubuntu 14.04). For resume_offset see the kernel docs linked below. https://www.kernel.org/doc/Documentation/power/swsusp-and-swap-files.txt ---- On Mon, 02 Jan 2017 20:10:44 +0530 Ranjan Maitra <mai...@email.com> wrote ---- Sudhir, What exactly did you try? Here are my notes (that work for me on all but one laptops): ## To get hibernate going (since F20): sudo vi /etc/defaults/grub ## add --> resume=UUID="****" <-- to the line GRUB_CMDLINE_LINUX= (anywhere, i do it before the rhgb which I also take out since I like to see what is happening ## where the uuid is obtained using sudo blkid. ## then sudo bash -x grub2-mkconfig sudo bash -x grub2-mkconfig -o /boot/grub2/grub.cfg Reboot and things work for me on about half a dozen machines, all Dells of varied vintage (including one XPS13) and one Thinkpad T510. I am not aware of the resume_offset flag: where did you get this? Ranjan PS: The one laptop where it did not work is a Dell Precision M3800 where it is not reliable. There was a long-standing bug in kernel which was fixed in 4.8 but with this machine, hibernate reliably worked on 4.8.4 but the unreliability (not always coming back, especially if a number of windows were left open) returned post-4.8.5, Many thanks again$ Ranjan On Mon, 02 Jan 2017 15:33:38 +0530 Sudhir Khanger <sud...@sudhirkhanger.com> wrote: > Hi back, > > > > After a lot of Google search it seems to hibernate using swap file I need both the resume flag and resume_offset flag. After setting these my system seems to go into hibernation but doesn't recover. It just boots into a new session. Also systemctl hybrid-sleep is working as far as I can tell. > > > > ---- On Mon, 02 Jan 2017 11:52:16 +0530 Sudhir Khanger &lt;sud...@sudhirkhanger.com&gt; wrote ---- > > > > > Hi, > > > > I am setting up a new Dell Precision 5510. It has 16gb of RAM. I chose to create a swapfile of 24gb (1.5 times is recommended by RHEL 7 docs). > > > > The swap is on, resume flag has been set in /etc/default/grub, and secure boot if off. That's my understanding of the common bug entry. > > > > When I hibernate my system it simply locks the system. No hibernation is done. I gave Kubuntu a try to see if there is a problem with hibernation and it works fine on Kubuntu. > > > > If you guys have any ideas I would really appreciate it. > > > > Regards, > > Sudhir Khanger, > > sudhirkhanger.com. > > > > > > _______________________________________________ > > users mailing list -- users@lists.fedoraproject.org > > To unsubscribe send an email to users-le...@lists.fedoraproject.org > > > > > > Regards, > > Sudhir Khanger, > > sudhirkhanger.com. > > > > > -- Important Notice: This mailbox is ignored: e-mails are set to be deleted on receipt. Please respond to the mailing list if appropriate. For those needing to send personal or professional e-mail, please use appropriate addresses. _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org Regards, Sudhir Khanger, sudhirkhanger.com.
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