Bug#908358: Display stays off after computer resumes from suspend

Michael Biebl biebl at debian.org
Sun Sep 9 00:20:28 BST 2018


Control: tags -1 + moreinfo

Am 09.09.18 um 00:51 schrieb Dave Smith:
> Package: systemd
> Version: 239-8
> 
> When I type
> 
> sudo systemctl suspend
> 
> my computer goes to sleep. If I then close the lid and reopen it the
> computer reawakens but the display stays off. When logind.conf includes
> the line
> 
> HandleLidSwitch=suspend
> 
> my computer goes to sleep when I close the lid and the display comes
> back on when I reopen the lid. I think that systemctl is broken.

Is the computer still functional at that point, e.g. can you reach it
via network/SSH?
Have you tried switching terminals via CTRL+ALT+Fn ?

> I have the following packages installed.
> 
> libc6/unstable
> linux-image-686/unstable
> systemd/unstable
> 
> My computer is an IBM ThinkPad T42.

"systemctl suspend" basically just calls

echo mem > /sys/power/state

If you run that command (as root) and wake up from resume, does your
display turn on or not?




-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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