Comment 1 for bug 1233091

> Ubuntu was not able to read the lid state anymore.

What do you mean with that, i. e. where did you see the lid switch status? From "upower --dump"?

For downgrading you can select your architecture (i386 or amd64) from https://launchpad.net/ubuntu/+source/systemd/198-0ubuntu11.1, then download the older .debs, and install them with "sudo dpkg -i <package>.deb". It's a bit unlikely that systemd-services would affect upower's ability to read the lid switch status, especially as the diff (http://launchpadlibrarian.net/150608501/systemd_198-0ubuntu11.1_198-0ubuntu11.2.diff.gz) does not affect anything is related to lid switch (only timedated, localed, and hostnamed).

But it can certainly not hurt to try and downgrade and see which particular package caused this. I suggest starting with systemd-services and udev first and keep the libraries. Sometimes a mere package upgrade causes the weirdest things which are completely unrelated to the actual code changes.