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Hi,
there is a problem with my Lenovo Z50 notebook with suspend / hibernate functionality.
Sometimes the resume / thaw work, but more than half of the times the laptop just dies - screen is black (not turned off but slightly lighter black) and keyboard doesn't react at all (not even Num Lock diode glows).
What perplexes me is that it doesn't happen every time, but very often, so I'm full of fear every time I use suspend.
The problem has been happening both with using KDE leave menu items and terminal command systemctl suspend/hibernate.
I have tried changing some kernel parameters that I have found in threads with similar issue, but none of them helped. Since it was more in the past, I don't remember exactly what options they were.
I also tried to make a service to unbind / bind keyboard on resume / thaw, but without result - but I didn't understand the syntax of it and couldn't find a good documentation, so I may have written it incorrectly.
Just to illustrate, and maybe you will notice some error immediately:
[Unit]
Description=Enabling keyboard after resuming / thawing
After=sleep.target hibernate.target[Service]
Type=oneshot
ExecStart=/usr/bin/echo -n "i8042" > /sys/bus/platform/drivers/i8042/unbind
ExecStart=/usr/bin/echo -n "i8042" > /sys/bus/platform/drivers/i8042/bind[Install]
WantedBy=sleep.target
Thanks for any advices.
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