Unable to login using cinnamon

[Ricardo Almeida]

I upgraded to 18.04 on my laptop and now I can't login using cinnamon (regular nor software mode). I renamed my local .cinnamon dir to .cinnamon.old but that did not help...

The screen goes black for a while and then it goes back to the login screen :(

On dmesg I found the following, that might be related:

[ 137.780216] do_trap: 11 callbacks suppressed
[ 137.780220] traps: cinnamon-sessio[2160] trap int3 ip:7f34c4971c41 sp:7ffcdf905ba0 error:0 in libglib-2.0.so.0.5600.1[7f34c4920000+113000]
[ 186.697827] traps: cinnamon-sessio[2276] trap int3 ip:7f964ec09c41 sp:7ffcb1dc4da0 error:0 in libglib-2.0.so.0.5600.1[7f964ebb8000+113000]
[ 234.575640] rfkill: input handler disabled
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ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: cinnamon 3.6.7-8ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Apr 21 12:34:43 2018
InstallationDate: Installed on 2017-11-25 (146 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
SourcePackage: cinnamon
UpgradeStatus: Upgraded to bionic on 2018-04-20 (0 days ago)

[Fantu (fantonifabio)]

I suppose that can be something as recommends missed or something that can cause unexpected issue.
FWIK install with cinnamon-desktop-environment including recommends solves many issue (major of cases about only one or more part)
Another thing that can cause issue spotted by some users seems gnome-user-share.
If you already install cinnamon-desktop-environment including recommends and gnome-user-share is something else that need more info and/or debug

[Ricardo Almeida (ric-almeida)]

Thanks for the suggestions... I have cinnamon-desktop-environment and all recommends, as well as gnome-user-share and it still can't login using cinnamon :(

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Karl-Philipp Richter (krichter722)]

Can you please change the importance since that issue makes cinnamon unusable which is the only desktop which can handle full screen WINE applications properly.

[Ari Nordström (ari-nordstrom)]

I had the exact same problem. Removing gnome-user-share did the trick - I was able to log in to Cinnamon after a reboot.

[Aaron Haviland (aaron-haviland)]

On 18.10, I appear to have had the same issue, and I can confirm that installing cinnomon-desktop-environment +recommends did help in my case. I do not have gnome-user-share installed.

[Ricardo Almeida (ric-almeida)]

I upgraded to 18.10 and it seems the issue is now fixed. Cinnamon now works :) at least for me...