Am 03.04.19 um 05:54 schrieb Matheus Fillipe: > Wow! Here I am to revive this topic in 2019! I have exactly the same > problem, on ubuntu 18.04.2 with basically all kernels since 4.15.0-42 up to > 5, which was all I tested, currently on 4.18.0-17-generic... I guess this > has nothing to do with the kernel anyway. > > It was working fine before, even with proprietary nvidia drivers which > would generally cause a bug on the resume and not while saving the ram > snapshot. I've been trying to tell this to the ubuntu guys and you can see > my whole story with this problem right here: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819915 > > Shortly, I tried with or without nvidia modules enabled (or intel or using > nouveau), many different kernels, disabled i915, and this is all get in > all those different combinations: > https://launchpadlibrarian.net/417327528/i915.jpg > > The event is pretty random and seems to be more likely to happen after 2 or > 4 gb of ram is ever used (I have 16 in total), and nothing changes if later > I reduce the ram usage later. But is random, I successfully hibernated with > 11gb in use yesterday, just resumed and hibernated 5 seconds later without > doing nothing else than running hibernate, and got freeze there. > > This also happens randomly if there's just 3 or 2 gb in use, likely on the > second attempt of after more than 5 minutes after the computer is on. What > can be wrong here? > The last time that I've encountered this issue was sometime in 2017 under conditions described in Comment 23. And that's true for s2both/s2disk and the kernel-methods. It seems that you are using the uswsusp package. In that case it might be worth taking a look at the settings in /etc/suspend.conf. What works here is: #image size = 3500000 early writeout = n #threads = y If this doesn't help, you should try hard to figure out what has changed from Ubuntu 18.04.1 to 18.04.2 as it worked with the former for you.
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