[GTALUG] Thinkpad [2] : Power malfunction on suspend; faster suspend to disk?
Matt Price
moptop99 at gmail.com
Wed Jun 15 10:41:06 EDT 2016
Another thinkpad issue, this one more serious: when I suspend to ram, my
Thinkpad T440s sometimes has a serious power malfunction. While suspend
generally succeeds, at some point the pulsing power light on the lid goes
out and it’s no longer possible to power on the laptop. I have to open the
lid, disconnect the internal bettery, and generally also hit the internal
power reset button. I can then restart, but of course lose all my work. At
first this happened about once a month, then once a week, and now it
happens several times a day.
1. Anyone else having this issue? And do you know what actually causes
it, and if it can be fixed? I’ve searched online and there are various
threads about it, but I haven’t found any actionable information. Recently
updated my BIOS and changed some BIOS settings, but to no apparent effect.
2. As a workarond, I’ve just switched from suspend-to-ram to hybrid
suspend, which writes an image to disk before suspending to ram. (Took me a
long time to do this, because I had no swap partition & my main partition
was encrypted, so I had to resize the encrypted partition, ettc.) This
seems to work! Yay! However, suspend-to-disk is really slow. In the old
days I used Txonice for hibernaion, but that project has really slowed down
in the last few years. Is anyone still using it? How about uswsusp? Is
either one compatible with the systemd hibernation commands? My experience
with tuxonice was that it was abot 5 times faster than native hibernation,
so I’d really like to compress the disk image
Thanks again!
Matt
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