So I had Kubuntu 16.04 which had been upgraded from 15.10. Always worked fine and slept when I closed the lid. I installed Ubuntu (switched from Kubuntu) (clean install, formatted root partition) 16.04 and now my laptop won't sleep when I close the lid or when I select Suspend from the power menu.
echo mem > /sys/power/state as root but it only shuts off my screen, everything else stays on, and I can't get the screen to come back on.
I have an HP DV7 Laptop with i7, dual switchable graphics (Intel/AMD Radeon HD 7960M XT). I installed Ubuntu with no third-party drivers, just stock from USB. Also to note that booting into a live session from the USB still doesn't allow suspend.
My system has 2 hard drives laid out like so:
SDA (GRUB boot loader here) Windows 10 SDB1 (NTFS) Storage drive for both OS'es SDB3 /home (ext4) SDB5 swap SDB6 / (root, ext4)
Windows 10 still works fine. Boots into Ubuntu fine, everything works except suspend.
UPDATE : I'm still at a loss here. I updated my kernel to 4.4.8 but this didn't fix it.
I removed the
HandleLidSwitch=suspend in the
logind.conf and that didn't work.
acpi_listen in the terminal, closed and opened the lid, and it is detecting lid closed and lid opened.
Here is the output of acpi_listen:
button/lid LID close button/lid LID open
Still not sure why it's not working...