Can the update of libudev from 11.1 to 11.2 caused problem with lid switch?

[Gerry-treppel]

After an update of libudev/systemd (details on update below), Ubuntu was not able to read the lid state anymore. Now, the lid state always reports "open". Before the update on the 18th of September, the lid switch worked perfectly and put the system in suspend. Now, it is not working anymore.

Therefore my question: Is it possible that the update of libudev/systemd from 11.1 to 11.2 caused the problem? How could I downgrade from libudev/systemd 11.2 to 11.1 to try out whether it works (synaptic offers only v11 and gives lots of dependency issues)?

Details on my problem are here: http://askubuntu.com/questions/351788/lid-switch-on-notebook-stopped-working-after-update-how-can-i-fix-it

2013-09-18 21:03:35 upgrade libudev-dev:amd64 198-0ubuntu11.1 198-0ubuntu11.2
2013-09-18 21:03:36 upgrade libudev1:i386 198-0ubuntu11.1 198-0ubuntu11.2
2013-09-18 21:03:38 upgrade libudev1:amd64 198-0ubuntu11.1 198-0ubuntu11.2
2013-09-18 21:04:04 upgrade libsystemd-daemon0:amd64 198-0ubuntu11.1 198-0ubuntu11.2
2013-09-18 21:04:05 upgrade libsystemd-login0:amd64 198-0ubuntu11.1 198-0ubuntu11.2
2013-09-18 21:04:06 upgrade systemd-services:amd64 198-0ubuntu11.1 198-0ubuntu11.2

[Martin Pitt (pitti)]

> 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.

[Gerry-treppel (gerry-treppel)]

Dear Martin, thanks a lot for your quick reply and sorry for a few days of silence. Then reason why I did not answer, was that the downgrading did not change anything. Then I contacted Lenovo on how to check whether the hardware (the lid switch) is broken or not. In this model, it is a magnetic switch and I could figure out that it only partially works in the BIOS. I need to softly push with a finger on the lid at a specific position and then the notebook suspends.

Hence, it is a hardware problem and not a software problem. Thanks a lot!
I think this bug can be closed.

[Gerry-treppel (gerry-treppel)]

Setting to invalid, because the problem was a hardware problem